Sound positioning device based on microphone array

Abstract

The utility model relates to the technical field of sound positioning, and discloses a sound positioning device based on a microphone array, which comprises a fixed shell, a power supply interface is fixedly arranged on the front side surface of the fixed shell, the power supply interface is electrically connected with a signal processing device, and the signal processing device is fixedly arranged on the inner surface of the fixed shell. And an array microphone is mounted at the upper end of the signal processing device. According to the sound positioning device based on the microphone array, the position of the adjusting plate is adjusted, so that the sound positioning device can be clamped and fixed on robots with different sizes without being fixed by screws, and the situation that the sound positioning device cannot be mounted and fixed due to the position deviation of holes formed in different robots can be effectively avoided; the sound positioning device is simple in structure and convenient to use, rapid and lossless disassembly and assembly can be achieved in a clamping and fixing mode, more convenience and rapidness are achieved, the sound positioning device can be clamped on robots with different shapes through rotation of the rotating plate, and the use range of the sound positioning device is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to sound positioning technical field, concretely is a sound positioning device based on microphone array. BACKGROUND

[0002] The sound source positioning technology of microphone array determines the spatial position of the sound source by analyzing the differences (such as time difference, phase difference, amplitude difference) of the sound source signals received by multiple microphones, combined with signal processing algorithm; based on this principle, the sound positioning device can be integrated on the unmanned aerial vehicle or robot platform, and the dynamic target tracking or environmental obstacle avoidance function can be realized through real-time sound source positioning.

[0003] At present, the patent with publication number CN212781202U discloses a sound source positioning and sound type recognition device based on a miniature microphone array, which comprises a sound collecting unit, at least a miniature microphone and at least a snap element, the sound collecting unit shell is provided with a plurality of hole parts, the miniature microphone is arranged inside the sound collecting unit shell, the snap element comprises a first snap body and a second snap body, the first snap body is arranged on the sound collecting unit shell, and the second snap body is snapingly arranged on the first snap body; the sound collecting unit is detachably arranged on the top of the hat through the cooperation of the first snap body and the second snap body, and is then fixed on the head of the user to collect sound signals through the miniature microphone, the host unit is detachably arranged on the trousers through the clamping element, and is then fixed on the waist of the user to identify the sound signals to obtain sound source positioning and sound type information, which is convenient to wear, has the advantages of small size and light weight, effectively improves the comfort of wearing, and brings great convenience to the user.

[0004] However, when the above-mentioned sound source positioning device is used on a robot, the existing method is to screw and fix it in the middle position of the upper end of the robot, and since the sensors equipped on the robot are different, their functions also have great differences, and it is difficult to adapt to robots of different sizes, that is, the position of the threaded hole opened on the robot is deviated, causing the installation and use of the sound source positioning device. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a sound positioning device based on a microphone array, which can be installed on robots of different sizes through clamping and fixing, and can realize quick lossless disassembly and assembly of the sound positioning device.

[0006] The utility model provides following technical scheme: a kind of sound positioning device based on microphone array, its front side is fixedly provided with power interface, and power interface and signal processing device constitute electric connection, signal processing device is fixedly installed in fixed shell inner surface, and array microphone is installed on signal processing device upper end, two mounting plates are symmetrically installed in the left and right side of fixed shell, and fixed screw is arranged in the side of mounting plate, and fixed screw is connected with adjusting plate, and adjusting plate is fixedly installed with receiving plate, receiving plate lower end is rotatably installed with connecting shaft, and connecting shaft lower end is fixedly installed with rotating plate.

[0007] Further, the eight array microphones are equiangularly arranged about the center of the fixed shell, and each of the eight array microphones is electrically connected with an indicator light, and the indicator light is fixedly arranged on the upper surface of the fixed shell.

[0008] Further, the adjusting plate is provided with a threaded hole in the side thereof, and the fixed screw is threadedly connected with the adjusting plate through the threaded hole in the adjusting plate, and the adjusting plate is slidably connected with the inner surface of the mounting plate.

[0009] Further, the rotating plate is fixedly provided with an arc-shaped pad on one side thereof, and is fixedly provided with a square pad on the other side thereof, and the square pad and the arc-shaped pad are symmetrically arranged about the center of the rotating plate.

[0010] Further, the arc-shaped pad is fixedly provided with a first anti-skid pad thereon, and the square pad is fixedly provided with a second anti-skid pad thereon, and the arc-shaped pad and the square pad are made of elastic rubber material, and the first anti-skid pad and the second anti-skid pad are made of silica gel material with rough surface.

[0011] Further, the receiving plate is slidably provided with a positioning rod thereon, and the positioning rod is clampedly connected with the rotating plate, and the positioning rod is fixedly provided with a pulling plate at the upper end thereof, and the pulling plate is fixedly provided with a receiving spring at the lower surface thereof, and the other end of the receiving spring is fixedly arranged on the upper surface of the receiving plate.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The sound positioning device based on the microphone array can be clamped and fixed on different sizes of robots by adjusting the position of the adjusting plate, and the sound positioning device no longer needs to be fixed by using screws, so that the situation that the sound positioning device cannot be fixed due to the position deviation of the holes opened on different robots can be effectively avoided, and the sound positioning device can be quickly and non-destructively disassembled by the clamping and fixing mode, which is more convenient and fast, and the sound positioning device can be clamped on robots with different shapes by rotating the rotating plate, so that the use range of the sound positioning device is increased. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole three-dimensional structure schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional structure schematic diagram of the heat dissipation pad of the utility model;

[0016] Figure 3 It is a three-dimensional sectional structure schematic diagram of the fixed shell of the utility model;

[0017] Figure 4 It is a three-dimensional structure schematic diagram of the array microphone of the utility model;

[0018] Figure 5 It is an exploded three-dimensional structure schematic diagram of the rotating plate of the utility model.

[0019] In the figure: 1, fixed shell; 2, power interface; 3, signal processing device; 4, array microphone; 5, indicator light; 6, mounting plate; 7, heat dissipation pad; 8, fixing screw; 9, adjusting plate; 10, receiving plate; 11, connecting shaft; 12, rotating plate; 13, arc-shaped pad; 14, first anti-skid pad; 15, square pad; 16, second anti-skid pad; 17, positioning rod; 18, pulling plate; 19, receiving spring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0021] Please refer to Figures 1-5The utility model provides a technical scheme: a kind of sound positioning device based on microphone array, its front side is fixedly provided with power interface 2, and power interface 2 and signal processing device 3 constitute electric connection, signal processing device 3 is fixedly installed in fixed shell 1 inner surface, and array microphone 4 is installed on signal processing device 3 upper end, and two mounting plates 6 are symmetrically installed on the left and right side of fixed shell 1, and fixed screw 8 is arranged in the side of mounting plate 6, and fixed screw 8 is connected with adjusting plate 9, and adjusting plate 9 is fixedly installed with receiving plate 10, and connecting shaft 11 is rotatably installed in the lower end of receiving plate 10, and rotating plate 12 is fixedly installed in the lower end of connecting shaft 11, and eight array microphones 4 are arranged at equal angles about the center of fixed shell 1, and the upper end of eight array microphones 4 is electrically connected with indicating lamp 5, and indicating lamp 5 is fixedly installed on the upper surface of fixed shell 1, and heat dissipation pad 7 is installed in the lower end of fixed shell 1, and thread hole is formed in the side of adjusting plate 9, and fixed screw 8 is connected with adjusting plate 9 by the thread hole formed in the side of adjusting plate 9, and adjusting plate 9 and the inner surface of mounting plate 6 constitute sliding connection.

[0022] When it is needed to install and fix fixed shell 1, heat dissipation pad 7 installed in the lower end of fixed shell 1 is attached to the upper surface of robot, and is located in the middle position of the upper surface of robot, then adjusting plate 9 is pushed, and adjusting plate 9 starts to slide in mounting plate 6, until first antiskid pad 14 installed on arc-shaped pad 13 is closely attached to the side of robot, then fixed screw 8 is passed through mounting plate 6, and fixed screw 8 is rotated, at this time, fixed screw 8 is connected with the thread hole formed in the side of adjusting plate 9, at this time, the position of adjusting plate 9 can be fixed, the position of receiving plate 10 and rotating plate 12 can be fixed, arc-shaped pad 13 and first antiskid pad 14 can be fixed, so that fixed shell 1 is stably clamped on robot, signal processing device 3 can be powered through power interface 2, and power interface 2 is connected with signal output terminal interface on robot through signal transmission wire, when signal processing device 3 is powered, the detected signal can be transmitted, that is, array microphone 4 electrically connected with signal processing device 3 starts to detect the sound in surrounding environment, the position of sound is positioned, and the position of sound can be indicated through indicating lamp 5, which is convenient for staff to check, and after detecting the position of sound, the signal is transmitted to robot control device through signal processing device 3, which is convenient for robot detection and obstacle avoidance.

[0023] One side of the rotating plate 12 is fixedly provided with an arc-shaped pad 13, and the other side of the rotating plate 12 is fixedly provided with a square pad 15, and the square pad 15 and the arc-shaped pad 13 are symmetrically distributed about the center of the rotating plate 12, the first anti-skid pad 14 is fixedly installed on the arc-shaped pad 13, and the second anti-skid pad 16 is fixedly installed on the square pad 15, the arc-shaped pad 13 and the square pad 15 are made of elastic rubber material, and the first anti-skid pad 14 and the second anti-skid pad 16 are made of silica gel material with rough surface, the positioning rod 17 is slidably arranged on the receiving plate 10, and the positioning rod 17 is in clamping connection with the rotating plate 12, the pulling plate 18 is fixedly installed on the upper end of the positioning rod 17, the receiving spring 19 is fixedly installed on the lower surface of the pulling plate 18, and the other end of the receiving spring 19 is fixedly installed on the upper surface of the receiving plate 10.

[0024] When the robot with square side is needed to be fixed, the pulling plate 18 is pulled before clamping and fixing, because the positioning rod 17 is fixedly installed on the lower end of the pulling plate 18, at this time the positioning rod 17 starts to move upward, the receiving spring 19 installed on the lower end of the pulling plate 18 starts to be stretched and deformed, until the positioning rod 17 no longer fits with the rotating plate 12, at this time the rotating plate 12 can be rotated, that is, the connecting shaft 11 installed on the rotating plate 12 starts to rotate around the receiving plate 10, when the rotating plate 12 rotates one hundred and eighty degrees, at this time the square pad 15 and the second anti-skid pad 16 are rotated to the position close to the robot, the pulling plate 18 is released, the receiving spring 19 starts to recover the deformation, the pulling plate 18 drives the positioning rod 17 to move downward, until the positioning rod 17 again fits with the cylindrical hole formed on the rotating plate 12, so as to achieve the purpose of clamping and fixing the rotating plate 12, at this time the contact area with the robot can be increased, and the stability during clamping can be increased; when the robot with arc-shaped side is needed to be fixed, the arc-shaped pad 13 and the first anti-skid pad 14 can clamp and fix the robot with arc-shaped side, because the arc-shaped pad 13 has a certain elasticity, when the arc-shaped robot is used, the contact area can be increased.

[0025] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A sound positioning device based on a microphone array, comprising a fixed housing (1), a power interface (2) fixedly disposed on its front side, and the power interface (2) being electrically connected to a signal processing device (3), characterized in that, Also includes: The signal processing device (3) is fixedly installed on the inner surface of the fixed housing (1), and an array microphone (4) is installed on the upper end of the signal processing device (3). Two mounting plates (6) are symmetrically installed on the left and right sides of the fixed housing (1), and a fixing screw (8) is provided through the side of the mounting plate (6). The fixing screw (8) is connected to the adjustment plate (9), and a receiving plate (10) is fixedly installed on the adjustment plate (9). A connecting shaft (11) is rotatably installed at the lower end of the receiving plate (10), and a rotating plate (12) is fixedly installed at the lower end of the connecting shaft (11).

2. The sound positioning device based on a microphone array according to claim 1, characterized in that: The array microphones (4) are arranged at equal angles to the center of the fixed housing (1), and each of the eight array microphones (4) is electrically connected to an indicator light (5). The indicator light (5) is fixedly installed on the upper surface of the fixed housing (1), and a heat dissipation pad (7) is installed at the lower end of the fixed housing (1).

3. A sound positioning device based on a microphone array according to claim 1 or 2, characterized in that: The adjusting plate (9) has a threaded hole on its side, and the fixing screw (8) is threadedly connected to the adjusting plate (9) through the threaded hole. The adjusting plate (9) and the inner surface of the mounting plate (6) are slidably connected.

4. A sound positioning device based on a microphone array according to claim 1 or 2, characterized in that: An arc-shaped pad (13) is fixedly installed on one side of the rotating plate (12), and a square pad (15) is fixedly installed on the other side of the rotating plate (12). The square pad (15) and the arc-shaped pad (13) are symmetrically distributed about the center of the rotating plate (12).

5. A sound positioning device based on a microphone array according to claim 3, characterized in that: An arc-shaped pad (13) is fixedly installed on one side of the rotating plate (12), and a square pad (15) is fixedly installed on the other side of the rotating plate (12). The square pad (15) and the arc-shaped pad (13) are symmetrically distributed about the center of the rotating plate (12).

6. A sound positioning device based on a microphone array according to claim 4, characterized in that: The first anti-slip pad (14) is fixedly installed on the arc-shaped pad (13), and the second anti-slip pad (16) is fixedly installed on the square pad (15). The arc-shaped pad (13) and the square pad (15) are made of elastic rubber material, and the first anti-slip pad (14) and the second anti-slip pad (16) are both made of silicone material with roughened surface treatment.

7. A sound localization device based on a microphone array according to claim 5, characterized in that: The first anti-slip pad (14) is fixedly installed on the arc-shaped pad (13), and the second anti-slip pad (16) is fixedly installed on the square pad (15). The arc-shaped pad (13) and the square pad (15) are made of elastic rubber material, and the first anti-slip pad (14) and the second anti-slip pad (16) are both made of silicone material with roughened surface treatment.

8. A sound localization device based on a microphone array according to claim 1, 2, 5, 6 or 7, characterized in that: A positioning rod (17) is slidably provided on the receiving plate (10), and the positioning rod (17) and the rotating plate (12) are engaged. A pulling plate (18) is fixedly installed on the upper end of the positioning rod (17), and a receiving spring (19) is fixedly installed on the lower surface of the pulling plate (18). The other end of the receiving spring (19) is fixedly installed on the upper surface of the receiving plate (10).

9. A sound positioning device based on a microphone array according to claim 3, characterized in that: A positioning rod (17) is slidably provided on the receiving plate (10), and the positioning rod (17) and the rotating plate (12) are engaged. A pulling plate (18) is fixedly installed on the upper end of the positioning rod (17), and a receiving spring (19) is fixedly installed on the lower surface of the pulling plate (18). The other end of the receiving spring (19) is fixedly installed on the upper surface of the receiving plate (10).

10. A sound localization device based on a microphone array according to claim 4, characterized in that: A positioning rod (17) is slidably provided on the receiving plate (10), and the positioning rod (17) and the rotating plate (12) are engaged. A pulling plate (18) is fixedly installed on the upper end of the positioning rod (17), and a receiving spring (19) is fixedly installed on the lower surface of the pulling plate (18). The other end of the receiving spring (19) is fixedly installed on the upper surface of the receiving plate (10).

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