CN214954567U

CN214954567U - Skin sound listening watch for direction identification

Info

Publication number: CN214954567U
Application number: CN202121131338.2U
Authority: CN
Inventors: 齐勇; 陈红燕; 闫琳珊; 张宁占
Original assignee: Shaanxi University of Science and Technology
Current assignee: Shaanxi University of Science and Technology
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-11-30
Anticipated expiration: 2031-05-25

Abstract

The utility model discloses a skin sound-listening watch for position identification, which comprises a dial plate and a watchband, wherein a plurality of sound acquisition modules are arranged along the circumference of the dial plate, the sound acquisition modules are sequentially connected with a digital filter, an analog-to-digital converter, a singlechip and a row and column driving module, the singlechip is also respectively connected with a vibrating motor and a gyroscope, and the number of the vibrating motors corresponds to the position; the digital filter, the analog-to-digital converter, the single chip microcomputer, the row and column driving module, the vibration motor and the gyroscope are positioned in the dial plate; the row and column driving module is connected with a current contact pin, and the free end of the current contact pin extends out of the surface of the vibration motor. The patient can accurately receive the sound source direction by pre-reminding through the contact pin and then reminding the direction through the motor; does not cause any side effect, is suitable for the deaf-mute to use for a long time, and has small volume and convenient carrying.

Description

Skin sound listening watch for direction identification

Technical Field

The utility model belongs to the technical field of the sound device is listened to skin, a sound wrist-watch is listened to skin for position discernment is related to.

Background

In life, most of hearing-impaired people adopt methods such as drug therapy, surgical implantation of cochlear implants, wearing hearing aids and the like to obtain certain rehabilitation effects, but the methods have certain limitations for people with severe or insufficient funds. At present, the skin listening is a new technology for solving the hearing problem of deaf patients, and sound signals are transmitted into cerebral cortex by stimulating the skin of a person, so that the hearing-impaired people can perceive the sound. The existing skin listening device cannot distinguish the sound source position.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a skin is listened sound wrist-watch based on position discernment has solved the problem that the sound source position can't be differentiateed to the skin sound listening device that exists among the prior art.

The technical scheme adopted by the utility model is that the skin sound-listening watch for position identification comprises a dial plate and a watchband, a plurality of sound collection modules are arranged along the circumference of the dial plate, the sound collection modules are sequentially connected with a digital filter, an analog-to-digital converter, a single chip microcomputer and a row and column driving module, the single chip microcomputer is also respectively connected with a vibrating motor and a gyroscope, and the number of the vibrating motors corresponds to the position; the digital filter, the analog-to-digital converter, the single chip microcomputer, the row and column driving module, the vibration motor and the gyroscope are positioned in the dial plate; the row and column driving module is connected with a current contact pin, and the free end of the current contact pin extends out of the surface of the vibration motor.

The utility model discloses a characteristics still lie in:

the vibration motor also comprises a fixed shaft which is respectively connected with the vibration motor through an elastic connecting piece.

The row-column driving module comprises a row driving module and a column driving module, the row driving module comprises a chip, the chip is connected with a PNP triode, and an address access line A, B, C, D of the PNP triode is connected with P1.0, P1.1, P1.2 and P1.3 interfaces of the single chip microcomputer; the row driving module comprises a first row driving module and a second row driving module, wherein 11 th pins of the first row driving module are connected with a P3.1 interface of the single chip microcomputer, 14 th pins of the first row driving module are connected with a P3.0 interface of the single chip microcomputer, 9 th pins of the first row driving module are connected with 14 th pins of the second row driving module, 9 th pins of the second row driving module are suspended, 13 th pins of the first row driving module and the second row driving module are grounded, and 10 th pins of the first row driving module and the second row driving module are connected with a P1.5 interface of the single chip microcomputer.

The sound collection modules comprise four sound collection modules which are respectively positioned in four directions of the dial plate.

The dial plate back still is provided with the louvre.

The utility model has the advantages that:

the utility model relates to a skin sound-listening watch for direction identification, which carries out pre-reminding through a contact pin and then carries out direction reminding through a motor, so that a patient can accurately receive the direction of a sound source; does not cause any side effect, is suitable for the deaf-mute to use for a long time, and has small volume and convenient carrying.

Drawings

Fig. 1 is a schematic structural diagram of a skin listening watch for direction recognition according to the present invention;

fig. 2 is a schematic structural diagram of a vibrating motor in a skin listening watch for direction recognition according to the present invention;

fig. 3 is an internal structural view of a skin listening watch for orientation recognition according to the present invention;

fig. 4 is a schematic structural diagram of an analog-to-digital converter in a skin listening watch for direction identification according to the present invention;

FIG. 5 is a schematic diagram of a row/column driving module of a skin listening watch for orientation recognition according to the present invention;

fig. 6 is a schematic diagram of the connection between the row and column driving module and the single chip in the skin listening watch for direction identification of the present invention;

fig. 7 is a schematic diagram of the connection between the PNP and the row driver module in the skin listening watch for direction recognition according to the present invention;

fig. 8 is a schematic diagram of the generation of stimulation signals in the skin listening watch for direction recognition according to the present invention.

In the figure: 1. the portable electronic device comprises a dial plate, 2 parts of a watchband, 3 parts of a sound acquisition module, 4 parts of a digital filter, 5 parts of an analog-to-digital converter, 6 parts of a single chip microcomputer, 7 parts of a row and column driving module, 701 parts of a row driving module, 7011 parts of a chip, 7012 parts of a PNP triode, 702 parts of a column driving module, 7021 parts of a first column driving module, 7022 parts of a second column driving module, 8 parts of a vibration motor, 9 parts of a gyroscope, 10 parts of a fixed shaft, 11 parts of heat dissipation holes, 12 parts of current contact pins, 13 parts of a split shaft, 14 parts of signal lines and 15 parts of an elastic connecting piece.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

A skin sound listening watch for direction identification comprises a dial plate 1 and a watchband 2, wherein a plurality of sound collection modules 3 are arranged along the circumferential direction of the dial plate 1, the sound collection modules 3 are sequentially connected with a digital filter 4, an analog-to-digital converter 5, a single chip microcomputer 6 and a row and column driving module 7, the single chip microcomputer 6 is also respectively connected with a vibrating motor 8 and a gyroscope 9, and the vibrating motors 8 comprise four vibrating motors which are respectively positioned at different directions (front, rear, left and right directions) on the back surface of the dial plate 1; the digital filter 4, the analog-to-digital converter 5, the single chip microcomputer 6, the row and column driving module 7, the vibrating motor 8 and the gyroscope 9 are positioned inside the dial 1; the rank driving module 7 is connected with a current contact pin 12, one end of the current contact pin 12 is arranged inside the dial 1 and is electrically connected with the rank driving module 7, the other end of the current contact pin extends out of the surface of the vibration motor 8, and the vibration motor 8 is connected with the single chip microcomputer 6 through a signal line 14.

In this embodiment, the model of the single chip microcomputer is AT89C52, and the structure of the analog-to-digital converter 5 is shown in fig. 4. The sound collection module 3 is a silicon microphone SMA120, the sound collection module 3 comprises four sound collection modules 3, the four sound collection modules 3 are respectively positioned in four directions of the dial plate 1, and audio is sampled according to the Nyquist sampling theorem (Fs >2 Fn, wherein Fs is a sampling rate, and Fn is a signal frequency).

The vibration machine further comprises a fixing shaft 10, a sub-shaft 13 is arranged at the center of each vibration motor 8, and the fixing shaft 10 is connected with the sub-shafts 13 through elastic connecting pieces 15. The resilient connecting member may be a spring. The dial 1 back is still provided with louvre 11.

As shown in fig. 5-7, the row-column driving module 7 includes a row driving module 701 and a column driving module 702, the row driving module 701 includes a 74HC154 chip 7011, the chip 7011 is connected to a PNP transistor 7012, and an address access line A, B, C, D of the PNP transistor 7012 is connected to the P1.0, P1.1, P1.2, and P1.3 interfaces of the single chip microcomputer 6; the row driving module 702 comprises a first row driving module 7021 and a second row driving module 7022, both the first row driving module 7021 and the second row driving module 7022 are 74HC595 chips, a pin 11 of the first row driving module 7021 is connected with a P3.1 interface of the single chip microcomputer 6, a pin 14 of the first row driving module 7021 is connected with a P3.0 interface of the single chip microcomputer 6, a pin 9 of the first row driving module 7021 is connected with a pin 14 of the second row driving module 7022, a pin 70229 of the second row driving module is suspended, pins 13 of the first row driving module 7021 and the second row driving module 7022 are grounded, and a pin 10 of the first row driving module 7021 and the second row driving module 7022 is connected with a P1.5 interface of the single chip microcomputer 6.

The invention relates to an orientation identification method of a skin listening watch based on orientation identification, which comprises the following steps:

step 1, a sound acquisition module 3 acquires sound signals in different directions, the sound signals pass through a digital filter 4 in the form of current signals to filter high-frequency sound waves, the sound signals are adjusted to the frequency suitable for human skin perception, then an analog-to-digital converter 5 converts the current signals into binary digital signals which are easy to recognize by a computer, and the binary digital signals enter a single chip microcomputer 6 to be stored; meanwhile, the singlechip 6 carries out fast Fourier transform

And judging the sounds with different frequencies by an active noise reduction technology to obtain the sound types.

And 2, the single chip microcomputer 6 transmits signals to the row and column driving module 7, the row and column driving module 7 correspondingly drives 16 rows and 16 columns of current contact pins 12 to generate current to stimulate the skin, the stimulation frequency is that the current is generated every 0.1 second according to a pre-written algorithm, the current disappears every time the current is excited for 1s, and the current is excited again after the interval is 0.1s, as shown in fig. 8.

And 3, the single chip microcomputer 6 transmits the signals to the gyroscope 9, the gyroscope 9 determines the posture of the watch, points to the primary approximate direction of the sound source according to different strengths of the electric signals transmitted in each direction (the type of the gyroscope 9 is WTGAHRS2), feeds the direction signals back to the single chip microcomputer 6, and controls the vibration motor 8 corresponding to the direction to vibrate. For example, the direction of the sound source pointed by the gyroscope 9 is the left front direction, the direction signal is fed back to the single chip microcomputer 6, the single chip microcomputer 6 enables the vibration motor 8 to generate vibration with different frequencies and amplitudes according to the sound type, the vibration motor 8 on the left and the front direction is controlled to vibrate, and a user can sense different sounds.

Further, in step 4, the single chip microcomputer 6 reconstructs a main sound source according to the watch posture and the sound signal acquired by the sound acquisition module 3 to obtain the current slope of the main sound source in each direction, and the vibration frequency of the vibration motor 8 in the direction with the larger current slope is increased by comparing the current slopes on the left and the front.

Through the mode, the skin sound listening watch for the direction identification carries out pre-reminding through the contact pin and then carries out direction reminding through the motor, so that a patient can accurately receive the direction of a sound source; does not cause any side effect, is suitable for the deaf-mute to use for a long time, and has small volume and convenient carrying.

Claims

1. A skin sound listening watch for direction identification comprises a dial plate (1) and a watchband (2), and is characterized in that a plurality of sound collection modules (3) are arranged along the circumferential direction of the dial plate (1), the sound collection modules (3) are sequentially connected with a digital filter (4), an analog-to-digital converter (5), a single chip microcomputer (6) and a row and column driving module (7), the single chip microcomputer (6) is further respectively connected with a vibration motor (8) and a gyroscope (9), and the number of the vibration motors (8) corresponds to the direction; the digital filter (4), the analog-to-digital converter (5), the single chip microcomputer (6), the row and column driving module (7), the vibrating motor (8) and the gyroscope (9) are positioned inside the dial (1); the row and column driving module (7) is connected with a current contact pin (12), and the free end of the current contact pin (12) extends out of the surface of the vibration motor (8).

2. The skin-listening watch for orientation recognition according to claim 1, further comprising a fixed shaft (10), wherein the fixed shaft (10) is connected to the vibration motor (8) through an elastic connection member, respectively.

3. The skin-listening watch for identifying the direction according to claim 1, wherein the row-column driving module (7) comprises a row driving module (701) and a column driving module (702), the row driving module (701) comprises a chip (7011), the chip (7011) is connected with a PNP triode (7012), and an address access line A, B, C, D of the PNP triode (7012) is connected with the P1.0, P1.1, P1.2 and P1.3 interfaces of the single chip microcomputer (6); the row driving module (702) comprises a first row driving module (7021) and a second row driving module (7022), wherein a pin 11 of the first row driving module (7021) is connected with a P3.1 interface of the single chip microcomputer (6), a pin 14 of the first row driving module (7021) is connected with a P3.0 interface of the single chip microcomputer (6), a pin 9 of the first row driving module (7021) is connected with a pin 14 of the second row driving module (7022), a pin 9 of the second row driving module (7022) is suspended, pins 13 of the first row driving module (7021) and the second row driving module (7022) are grounded, and a pin 10 of the first row driving module (7021) and the second row driving module (7022) is connected with a P1.5 interface of the single chip microcomputer (6).

4. A skin listening watch for orientation recognition according to claim 1, wherein the number of sound collection modules (3) is four, and four sound collection modules (3) are respectively located in four directions of the dial (1).

5. A skin listening watch for orientation recognition according to claim 1, wherein the back of the dial (1) is further provided with heat dissipation holes (11).