CN215222445U

CN215222445U - Robot with external microphone

Info

Publication number: CN215222445U
Application number: CN202121678596.2U
Authority: CN
Inventors: 李金波; 戴米沙
Original assignee: Changsha Wanwei Robot Co ltd
Current assignee: Changsha Wanwei Robot Co ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2021-12-17
Anticipated expiration: 2031-07-22

Abstract

The utility model discloses a robot with an external microphone, which comprises a robot body, an MIC assembly and a protection device, wherein the MIC assembly and the protection device are arranged on the robot body; the connecting seat is fixedly arranged outside the robot body, the protective cover is connected to the connecting seat, and an opening is formed in the protective cover; the MIC subassembly is fixed to be established in the safety cover, just the pickup position level of MIC subassembly is towards the opening. With MIC subassembly as for the outside of robot body, can reduce the harmonic that vibrations caused to minimum, the accuracy of very being favorable to the pickup, and need not to carry out many times through complicated audio frequency debugging software and repair and clip.

Description

Robot with external microphone

Technical Field

The utility model relates to the technical field of robot, specifically a robot of external microphone.

Background

With the increasing popularization of robot science and technology, robots not only stay at the industrial level, but also gradually become commercialized, natural human-computer interaction is the most important component of the robots, and the requirements of users on the experience of an interaction system in the use process are gradually increased. For example, if a robot in a shopping mall needs to have a guidance function, the robot needs to be able to accurately understand the intention of the user and provide a corresponding service.

The robot voice interaction system in the prior art is to analyze after collecting audio through an MIC (Microphone), and then feed back to a processor to respond, because the sensitivity of the MIC is high, the requirement for sound source positioning is accurate, echo and voiceprint recognition are avoided as much as possible, and equipment can be protected from being damaged by the surrounding environment, the equipment is often arranged inside a machine shell of the robot, but harmonic waves cannot be avoided, so that the accuracy of sound collection is influenced, namely, the equipment is represented as that the robot answers an question or cannot provide corresponding correct service, and the experience of a user is influenced.

SUMMERY OF THE UTILITY MODEL

To the not enough among the above-mentioned prior art, the utility model provides a robot of external microphone is favorable to the accuracy of pickup.

In order to achieve the purpose, the utility model provides an external MIC robot, which comprises a robot body, an MIC component arranged on the robot body and a protection device, wherein the protection device comprises a connecting seat and a protection cover;

the connecting seat is fixedly arranged outside the robot body, the protective cover is connected to the connecting seat, and an opening is formed in the protective cover;

the MIC subassembly is fixed to be established in the safety cover, just the pickup position level of MIC subassembly is towards the opening.

In one embodiment, the opening is provided with a dust screen.

In one embodiment, the inner wall of the protective cover is provided with a noise reduction layer.

In one embodiment, the noise reduction layer is made of sound proof carpet or polyurethane foam or calm sound proof and sound absorbing cotton.

In one embodiment, a wire groove is formed in the inner wall of the protective cover, and a connecting joint electrically connected with the robot body is arranged on the wire groove;

the MIC assembly is fixedly connected with the inner wall of the protective cover through a connecting piece and is electrically connected with the connecting joint.

In one embodiment, the protective cover is rotatably connected to the connecting base.

In one embodiment, the connecting seat is provided with a driving mechanism and a sliding groove with a circular structure, and the sliding groove vertically penetrates through the connecting seat;

the safety cover bottom be equipped with the rotator that the spout corresponds, the top of rotator is located the top of connecting seat and with the safety cover is fixed continuous, the bottom of rotator passes be located behind the spout the below of connecting seat and with the actuating mechanism transmission links to each other.

In one embodiment, the bottom of the rotating body is provided with a bulge with an annular structure, the driving mechanism comprises a motor, a first rotor and a second rotor, a first driving groove is formed in the side of the first rotor, and a second driving groove is formed in the side of the second rotor;

the first rotor and the second rotor are rotatably connected to the connecting seat, the outer ring of the protruding portion is embedded into the first driving groove and is in contact connection with the side portion of the first rotor, and the inner ring of the protruding portion is embedded into the second driving groove and is in contact connection with the side portion of the second rotor;

concave-convex points or lines capable of increasing frictional resistance are arranged on matching surfaces among the first driving groove, the second driving groove and the protruding parts;

the motor is in transmission connection with the first rotor and/or the second rotor so as to drive the first rotor and/or the second rotor to rotate and drive the rotating body to rotate.

In one embodiment, the number of the driving mechanisms is four, and the four driving mechanisms are arranged on the connecting seat in a cross-shaped symmetrical structure.

In one embodiment, the MIC component includes at least two unidirectional electret microphones of the same parameters.

Compare in prior art and set up the MIC subassembly in the inside pickup principle of robot, because the inside vibrations of robot are very big to the interference of MIC subassembly, and need just can reduce the problem of harmonic interference through complicated procedure, the utility model provides a pair of robot of external microphone, with the MIC subassembly as for the outside of robot, can fall to the harmonic that vibrations caused to minimum, the accuracy of the pickup is favorable to very much, and need not to carry out many times through complicated audio frequency debugging software and restore and clip.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a front view of a connection structure of a protection device and an MIC module according to an embodiment of the present invention;

fig. 2 is a bottom view of a connection structure of a protection device and an MIC module according to an embodiment of the present invention;

fig. 3 is a sectional view of a connection structure of the protection device, the MIC module, and the driving mechanism according to an embodiment of the present invention;

fig. 4 is a sectional view of a partial connection structure of the connection seat, the rotation body and the driving mechanism in the embodiment of the present invention;

FIG. 5 is a top view of the connecting seat, the rotating body and the driving mechanism according to the embodiment of the present invention;

fig. 6 is an isometric view of a partial structure of a rotating body in an embodiment of the present invention;

fig. 7 is a partial structural plan view of a rotating body according to an embodiment of the present invention.

Reference numerals:

a connecting seat 10, a chute 101;

the protective cover 20, the dust screen 201, the wire groove 202 and the connecting piece 203;

a MIC component 30;

the driving mechanism 40, the cover 401, the first rotor 402, the second rotor 403, the first rotating shaft 404, the second rotating shaft 405, the first driving groove 406, the second driving groove 407 and the mounting bolt 408;

the rotary body 50, bolt holes 501, fixing bolts 502, a rotary table 503, connecting bolts 504, a cushion pad 505, and a boss 506.

Rotary table 204, pulley 205, connecting bolt 206, and drive mechanism 40

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection, physical connection or wireless communication connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Fig. 1 to 7 show an external MIC robot according to the present embodiment, which includes a robot body, and an MIC component 30 and a protection device disposed on the robot body. The robot body is a commercial robot which is common in the market and can perform voice interaction, and the specific implementation process of the robot body is a means of the prior art, so that the details are not repeated in the embodiment.

In this embodiment, the protection device includes a connection base 10 and a protection cover 20. Wherein, connecting seat 10 is fixed in the outside of robot body through modes such as welding or bolt material or riveting, and safety cover 20 is connected on connecting seat 10, and is equipped with the opening on safety cover 20. The MIC module 30 is fixedly arranged in the protective cover 20, the sound pickup part of the MIC module 30 faces to an opening, and the opening is provided with a dust screen 201, wherein the opening is preferably in a circular or oval structure. With MIC subassembly 30 as for the outside of robot, and protect through safety cover 20, both can reduce the harmonic that vibrations caused to the minimum, be favorable to the accuracy of pickup, still need not to carry out a lot of through complicated audio frequency debugging software and restore and clip.

In a preferred embodiment, a noise reduction layer is fixedly disposed on an inner wall of the protection cover 20 by means of gluing or sewing, and the noise reduction layer may be made of a material such as a sound-proof blanket, polyurethane foam, or sound-proof and sound-absorbing foam, so as to further reduce harmonics caused by vibration and increase the accuracy of sound pickup of the MIC assembly 30.

In the specific implementation process, be equipped with wire casing 202 on the inner wall of safety cover 20, and be equipped with the attach fitting that links to each other with the robot body electrical property on the wire casing 202, MIC subassembly 30 passes through the fixed linking to each other of inner wall of connecting piece 203 and safety cover 20, and links to each other with the attach fitting electrical property, and wherein, clamp isotructure can be chooseed for use to connecting piece 203. In a preferred embodiment, the protective cap 20 is rotatably connected to the connection holder 10, and the MIC module 30 is mounted following the protective cap 20 such that the pickup portion of the MIC module 30 is always horizontally oriented toward the opening of the protective cap 20.

Specifically, the connecting seat 10 is provided with a driving mechanism 40 and a sliding groove 101 with a circular structure, the sliding groove 101 vertically penetrates through the connecting seat 10, the bottom of the protective cover 20 is provided with a rotating body 50 corresponding to the sliding groove 101, the rotating body 50 is in an annular structure, and the axial direction of the rotating body 50 coincides with the axial direction of the sliding groove 101. The top end of the rotating body 50 is located above the connecting socket 10, and the bottom end of the rotating body 50 passes through the sliding groove 101 and then is located below the connecting socket 10. The rotary body 50 has a bolt hole 501 at its top end, a rotary table 503 is mounted on the top end of the rotary body 50 through the bolt hole 501 and a fixing bolt 502, and the protective cover 20 is fixedly connected to the rotary table 503 through a connecting bolt 504. The bottom end of the rotating body 50 is in transmission connection with the driving mechanism 40, so that the rotating body 50 is driven by the driving mechanism 40 to rotate, and further drives the protective cover 20 and the MIC component in the protective cover 20 to rotate. A cushion 505 made of soft material such as rubber is provided between the rotary table 503 and the top end of the rotary body 50 to cushion the shaking of the protection cover 20 during the rotation.

In this embodiment, the bottom of the rotating body 50 is provided with a protrusion 506 having a ring structure, the driving mechanism 40 includes a cover 401, a motor, a first rotor 402, a second rotor 403, a first rotating shaft 404 and a second rotating shaft 405, a first driving groove 406 is disposed on a side of the first rotor 402, and a second driving groove 407 is disposed on a side of the second rotor 403. Specifically, the cover 401 is fixedly connected to the bottom of the connecting base 10 through a mounting bolt 408, and a driving cavity is defined between the cover and the base, the protruding portion 506 at the bottom end of the rotating body 50 is located in the driving cavity, and the top end of the rotating body 50 is located above the connecting base 10 after passing through the sliding groove 101.

Further specifically, the top end of the first rotating shaft 404 and the top end of the second rotating shaft 405 are both rotatably connected to the bottom of the connecting seat 10, the bottom end of the first rotating shaft 404 and the bottom end of the second rotating shaft 405 both penetrate through the cover 401 and then are located on the outer wall of the cover 401, and are both rotatably connected to the cover 401, and meanwhile, the axial direction of the first rotating shaft 404 and the axial direction of the second rotating shaft 405 are both parallel to the axial direction of the rotating body 50. The first rotor 402 is fixedly sleeved on the first shaft 404 and located outside the outer ring of the protrusion 506, and the second rotor 403 is fixedly sleeved on the second shaft 405 and located inside the inner ring of the protrusion 506. Moreover, the outer ring of the boss 506 is inserted into the first driving groove 406 and is connected with the side of the first rotor 402 in a contacting manner, the inner ring of the boss 506 is inserted into the second driving groove 407 and is connected with the side of the second rotor 403 in a contacting manner, and concave and convex points or textures capable of increasing frictional resistance are arranged on matching surfaces among the first driving groove 406, the second driving groove 407 and the boss 506. The motor is arranged on the outer wall of the cover 401 and is in transmission connection with the bottom end of the first rotor 402 and/or the bottom end of the second rotor 403 to drive the first rotor 402 and/or the second rotor 403 to rotate and drive the rotating body 50 to rotate, and then under the action of friction force between the first rotor 402, the second rotor 403 and the protruding portion 506, the rotating body 50 is driven to rotate around the axial direction of the rotating body 50, so that the protective cover 20 and the MIC assembly 30 on the protective cover 20 are driven to rotate.

In a preferred embodiment, the number of the driving mechanisms 40 is four, and four driving mechanisms 40 are arranged on the connecting seat 10 in a cross-symmetrical structure, so that the rotating body 50 can be driven to rotate more uniformly, and the stability during the rotation process is further improved.

It should be noted that the rotation implementation process of the protection cover 20 in this embodiment is not limited to the above structure, and the rotation of the protection cover 20 may also be implemented by using a motor to drive a gear transmission structure and a pulley, which is not described in this embodiment again.

In this embodiment, the MIC component 30 is a microphone array composed of at least two unidirectional electret microphones with the same parameters, the output end of the microphone array is connected to the signal acquisition and containment audio processing circuit on the robot body, and the output end of the signal acquisition and containment audio processing circuit is connected to the four analog-to-digital conversion pins of the core processor, so as to complete four-channel sound acquisition. The specific implementation manners of the signal acquisition and containment audio processing circuit and the core processor on the robot body are the prior art means, and therefore the detailed description is omitted in this embodiment.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A robot with an external MIC comprises a robot body and an MIC assembly arranged on the robot body, and is characterized by further comprising a protection device, wherein the protection device comprises a connecting seat and a protection cover;

2. The robot with the external MIC as claimed in claim 1, wherein a dust screen is disposed on the opening.

3. The robot with the external MIC as claimed in claim 1, wherein a noise reduction layer is arranged on the inner wall of the protection cover.

4. A robot with an external MIC as recited in claim 3, wherein the noise reduction layer is made of sound proof carpet or polyurethane foam or quiet sound proof and sound absorbing cotton.

5. The robot with the external MIC as claimed in claim 1, 2, 3 or 4, wherein a wire groove is formed on the inner wall of the protective cover, and a connecting joint electrically connected with the robot body is arranged on the wire groove;

6. The robot with the external MIC as claimed in claim 5, wherein the protection cover is rotatably connected to the connection holder.

7. The robot with the external MIC as claimed in claim 6, wherein the connecting seat is provided with a driving mechanism and a sliding groove with a circular structure, and the sliding groove vertically penetrates through the connecting seat;

8. The robot with the external MIC as recited in claim 7, wherein the bottom of the rotator is provided with a protrusion of a ring structure, the driving mechanism includes a motor, a first rotor and a second rotor, the first rotor is provided with a first driving groove at a side portion thereof, and the second rotor is provided with a second driving groove at a side portion thereof;

9. The robot with the external MIC as recited in claim 8, wherein the number of the driving mechanisms is four, and four driving mechanisms are arranged on the connecting seat in a cross-symmetrical structure.

10. A robot with an external MIC according to claim 1, 2, 3 or 4, wherein the MIC component comprises at least two single-pointed electret microphones with the same parameters.