CN216565527U - Teaching microphone with idle mute function - Google Patents

Abstract

The utility model relates to a teaching microphone with idle mute function, in particular, the microphone comprises: a microphone body; the 3-axis acceleration sensor is arranged in the microphone body and used for acquiring the acceleration of the microphone; the controller is arranged in the microphone body and connected with the 3-axis acceleration sensor, acquires acceleration data acquired by the 3-axis acceleration sensor, and judges the pose of the microphone based on the acceleration data; and when the pose of the microphone is that the microphone reaches a preset angle, controlling the microphone body to be mute. So set up, when the teacher placed the microphone on the desktop, the inside 3 axle acceleration sensor of microphone can gather the acceleration data this moment. The controller judges the position of the microphone to reach a preset angle and controls the microphone to be silent based on the acceleration data so as to avoid howling.

Description

Teaching microphone with idle mute function

Technical Field

The utility model relates to the technical field of teaching aids, in particular to a teaching microphone with an idle mute function.

Background

The microphone is named as a microphone, is an energy conversion device for converting a sound signal into an electric signal and also serves as a microphone, so that a teacher can use the microphone to teach in the teaching process in order to facilitate the teacher to teach knowledge.

In the process of using the microphone by a teacher, the teacher may handle other things in the teaching process at the interval, at the moment, the teacher generally places the microphone on a desktop, at the moment, the microphone does not need to receive sound, but the current microphone still receives sound, the microphone is not used, and the problem of whistling is easily caused when the teacher is placed on a flat platform.

SUMMERY OF THE UTILITY MODEL

In view of the above, a teaching microphone with idle mute function is provided to solve the problems in the related art.

The utility model adopts the following technical scheme:

the embodiment of the utility model provides a teaching microphone with an idle mute function, which comprises:

a microphone body;

the 3-axis acceleration sensor is arranged in the microphone body and used for acquiring the acceleration of the microphone;

the controller is arranged in the microphone body and connected with the 3-axis acceleration sensor, acquires acceleration data acquired by the 3-axis acceleration sensor, and judges the pose of the microphone based on the acceleration data; and when the pose of the microphone is that the microphone reaches a preset angle, controlling the microphone body to be mute.

Optionally, the 3 axes of the 3-axis acceleration sensor are respectively: an X-axis, a Y-axis, and a Z-axis; wherein, the setting direction of the X axis is the vertical upward direction when the microphone body is used.

Optionally, the data collected by the 3-axis acceleration sensor includes: acceleration values in the X-axis direction;

the controller obtains the acceleration value of the X axial direction, and when the acceleration value of the X axial direction reaches a preset value, the microphone body is controlled to be mute.

Optionally, the microphone body includes: a Bluetooth module adopting Bluetooth 4.0 technology or Bluetooth 5.0 technology;

the microphone body is connected with a preset communication opposite terminal through the Bluetooth module, and sends collected audio information to the preset communication opposite terminal.

Optionally, the microphone body adopts a close-range preferential connection mechanism.

Optionally, the microphone body includes: and the laser pointer module is used for emitting laser.

Optionally, the method further includes: a page turning function key;

the page turning function key is connected with the controller; and after receiving the trigger signal of the page turning function key, the controller sends a page turning signal to a communication opposite terminal connected with the Bluetooth module.

Optionally, the method further includes: volume button;

the volume button is connected with the controller; and after receiving the trigger signal of the volume button, the controller sends a volume adjusting signal to a communication opposite terminal connected through a Bluetooth module.

Optionally, the microphone body is provided with a microphone module;

the microphone module is connected with the audio circuit of the microphone body.

Optionally, the method further includes: and the rechargeable battery supplies power for the teaching microphone with the idle mute function.

By adopting the technical scheme, the teaching microphone with the idle mute function comprises: the 3-axis acceleration sensor is arranged in the microphone body and used for acquiring the acceleration of the microphone; the controller is arranged in the microphone body and connected with the 3-axis acceleration sensor, acquires acceleration data acquired by the 3-axis acceleration sensor, and judges the pose of the microphone based on the acceleration data; and when the pose of the microphone is that the microphone reaches a preset angle, controlling the microphone body to be mute. So set up, when the teacher placed the microphone on the desktop, the inside 3 axle acceleration sensor of microphone can gather the acceleration data this moment. And the controller controls the microphone to be mute to avoid howling when judging that the position of the microphone reaches a preset angle based on the acceleration data.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a teaching microphone with an idle mute function according to an embodiment of the present invention;

fig. 2 is a circuit structure diagram of a teaching microphone with idle mute function according to an embodiment of the present invention.

Reference numerals are as follows:

1-microphone status indicator light; 2-Type-C USB interface; 3-polymer lithium battery; 4-silent key for turning down page; 5-page turning on silent key; 6-triggering a key by a laser pen; 7-microphone in-place triggering device; 8-magnetic attraction charging interface; 9-Bluetooth communication module and 3-axis MEMS accelerometer; 10-a sound cavity with a built-in microphone core; 11-laser pointer module; 12-microphone core built in.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

First, an application scenario of the embodiment of the present invention is described, where a microphone is named as a microphone, is an energy conversion device that converts a sound signal into an electrical signal, and is also a microphone, so that a teacher can use the microphone to teach in a teaching process in order to facilitate the teacher to teach knowledge. In the process of using the microphone by a teacher, the teacher may handle other things in the teaching process at the interval, at the moment, the teacher generally places the microphone on a desktop, at the moment, the microphone does not need to receive sound, but the current microphone still receives sound, the microphone is not used, and the problem of whistling is easily caused when the teacher is placed on a flat platform. Specifically, the existing microphones mainly include the following: the handheld fixed frequency point FM radio microphone is commonly called U-section and V-section radio microphones (KTV microphones). The U section and the V section are different in frequency section where the wireless microphone is located. The V band has more than 6 interference because of narrow low frequency range (180 MHZ-280 MHZ), and the U band has wider range (500 MHZ-900 MH), so more than 60 interference can be generated. Except that the loading data is small, the sound effect of the V wave band is worse than that of the U wave band. The U section is a section which is not a section with large multi-frequency waves in daily life, so the interference chance is greatly reduced. More frequency points can be wrongly divided to realize that a plurality of frequency points are used in the same occasion without interference. A frequency shift type sound amplifying system commonly called a seat microphone mainly utilizes a circuit to shift the frequency of returned sound by 3-8 Hz so as to better control the generation of a feedback phenomenon, and a high-sensitivity interface microphone is mostly adopted as a mobile sound amplifying pickup microphone. Belongs to pickup and sound amplification of a wired microphone. The infrared microphone special for teaching is a wireless infrared microphone, namely an infrared wireless microphone, and is a wireless sound amplification system which takes infrared light as a carrier of sound signals and realizes transmitting and receiving. The basic principle is similar to that of a common radio frequency system, and the processes of modulating and demodulating sound signals are also needed in the wireless transmitting and receiving process. However, the carrier of the infrared wireless microphone is infrared light, and the frequency of the infrared wireless microphone is much higher than that of a common wireless system. 2.4G wireless technology microphone 2.4G wireless microphone is 2.4G frequency channel wireless microphone, is a novel wireless microphone based on 2.4G wireless technology research and development production. The frequency band used by the method is between 2.405GHz and 2.485GHz (science, medicine and agriculture). So it is referred to as 2.4G wireless technology for short. The frequency band is a free frequency band specified internationally, and any charge does not need to be paid to international related organizations. The disadvantages of the prior art are as follows: the handheld fixed frequency point FM frequency modulation wireless microphone has the following disadvantages: firstly, the electric quantity of the battery is very large, and the built-in new battery can only work for 4 hours; second, crosstalk is easily generated. The disadvantages of the frequency-shifted loudspeaker system are as follows: the voice distortion is large, the price is high, the speaking is limited in the range of the platform, and the effect is not achieved after the platform is taken out; is easily affected by dust, chalk powder and the like, and has high damage rate. The infrared microphone special for teaching has the following defects: the installation is rather troublesome; is easily affected by peripheral light, has high directivity requirement, and has high power consumption. The 2.4G wireless technology microphone has the following disadvantages: the cost is high, and the interference can be caused in complex occasions. The present application proposes a corresponding solution to the above-mentioned problem.

Examples

Fig. 1 is a schematic structural diagram of a teaching microphone with an idle mute function according to an embodiment of the present invention; fig. 2 is a circuit structure diagram of a teaching microphone with idle mute function according to an embodiment of the present invention. Referring to fig. 1 and 2, the teaching microphone with idle mute function provided by the present application includes:

a microphone body;

the 3-axis acceleration sensor is arranged in the microphone body and used for acquiring the acceleration of the microphone;

the controller is arranged in the microphone body and connected with the 3-axis acceleration sensor, acquires acceleration data acquired by the 3-axis acceleration sensor, and judges the pose of the microphone based on the acceleration data; and when the pose of the microphone is that the microphone reaches a preset angle, controlling the microphone body to be mute.

So set up, when the teacher placed the microphone on the desktop, the inside 3 axle acceleration sensor of microphone can gather the acceleration data this moment. The controller controls the microphone to be muted when judging that the microphone position reaches a preset angle (specifically, the microphone position is horizontally placed) based on the acceleration data at this time, so as to avoid howling.

Specifically, the 3 axes of the 3-axis acceleration sensor are respectively: an X-axis, a Y-axis, and a Z-axis; wherein, the setting direction of the X-axis is the vertical upward direction when the microphone body is used. The data collected by the 3-axis acceleration sensor comprises: acceleration values in the X-axis direction; the controller obtains the acceleration value of the X axial direction, and when the acceleration value of the X axial direction is smaller than a preset value (when the acceleration value of the X axial direction is 0 or negative), the microphone body is controlled to be mute. The controller is arranged in such a way that the position and the posture of the microphone can be judged directly based on the acceleration value in the X axial direction. It should be noted that, in the scheme provided by the application, the processing procedure of judging the pose of the microphone by the acceleration values of the controller and the X axis is only to execute a judgment for comparing whether the acceleration value of the X axis is smaller than a preset value, and the judgment can be realized by setting up a circuit or based on the existing control module. There are various means for further controlling the microphone and muting. For example, the microphone sound receiving unit can be controlled to communicate with a preset sound production unit.

Further, the microphone body includes: a Bluetooth module adopting Bluetooth 4.0 technology or Bluetooth 5.0 technology;

the microphone body is connected with a preset communication opposite terminal through the Bluetooth module, and sends collected audio information to the preset communication opposite terminal.

In practical application, the teaching microphone with the idle mute function is applied in a classroom. The classrooms are generally closely arranged, and each classroom is respectively provided with a teaching microphone and an audio playing device (namely, a communication opposite terminal). The utility model adopts the Bluetooth 4.0 technology or 5.0 technology to distribute a globally unique MAC address for each device, and simultaneously, the Bluetooth adopts the frequency hopping technology and has a plurality of channels (79 channels), thereby realizing the pairing and the universality with any Bluetooth receiver and avoiding the phenomenon of cross-frequency and crosstalk in the using process; meanwhile, the utility model adopts a close-range priority connection technology, and can effectively solve the problem of misconnection with other classroom equipment. Specifically, the utility model adopts a Class 2 Bluetooth design, the transmitting power is not more than 2.5mW, and the use distance ensures no noise, sound interruption and dead angle within 15 meters.

Further, the microphone body includes: and the laser pointer module 11 is used for emitting laser. The specific structure of the laser pointer module 11 can see the internal structure of the laser pen in the existing scheme. Be provided with the laser button on the shell of microphone body, press down as the laser button, laser teacher's pointer module 11 is at the shell top emission laser.

Further, the teaching microphone with the idle mute function further comprises: a page turning function key;

the page turning function key is connected with the controller; and after receiving the trigger signal of the page turning function key, the controller sends a page turning signal to a communication opposite terminal connected with the Bluetooth module. The teaching microphone with the idle mute function further comprises: a volume size button; the volume size key is connected with the controller; and after receiving the trigger signal of the volume button, the controller sends a volume adjusting signal to a communication opposite terminal connected through a Bluetooth module. With the arrangement, the teaching microphone with the idle mute function has the function of a computer page turner, can realize the function of computer page turning with a Bluetooth receiver (namely, a communication opposite terminal) in a classroom, and does not need to be additionally provided with a receiver; the problem that a special receiver for the page turning pen is easy to leave in a classroom is solved. It should be noted that, in practical applications, the communication peer is generally a teaching computer with a bluetooth receiving device. In the scheme that this application provided, the teaching microphone that has idle silence function only when the button is pressed, sends predetermined control signal to the communication opposite terminal through bluetooth module. The control signal can be a volume adjusting signal or a page turning signal based on different triggered keys.

Further, the microphone body is provided with a microphone module; the microphone module is connected with the audio circuit of the microphone body. Specifically, the microphone module can be a built-in microphone, so that the microphone is high in sensitivity and has an automatic gain function, and the sound pickup range is ensured to be not less than 25 CM.

Further, the teaching microphone that has idle silence function that this application provided still includes: and the rechargeable battery supplies power for the teaching microphone with the idle mute function. The battery may be, but is not limited to, a lithium battery.

In order to more clearly explain the solution provided by the present application, the teaching microphone with idle mute function provided by the present application is further explained based on the above preferred embodiments and fig. 2:

the application provides a teaching microphone with idle silence function includes: a microphone body; the 3-axis acceleration sensor is arranged in the microphone body and used for acquiring the acceleration of the microphone; the controller disposed inside the microphone body and connected to the 3-axis acceleration sensor is not separately shown in fig. 2, considering that the controller may be a part of a bluetooth module. The teaching microphone with the idle mute function further comprises: the device comprises a Type-C USB interface 2, a polymer lithium battery 3, a lower page turning silent key 4, an upper page turning silent key 5, a laser pen trigger key 6, a magnetic charging interface 8, a Bluetooth communication module, a 3-axis MEMS accelerometer 9, a built-in microphone sound cavity 10, a laser pointer module 11 and a built-in microphone 12;

the utility model adopts the Bluetooth 4.0 or 5.0 technology, can be automatically matched with the receiver at will, and is universal; the system adopts a close-range priority connection mechanism, the range of the opposite frequency is not more than 5 meters, and the crosstalk among classrooms is prevented; the use distance ensures no noise, sound interruption and dead angle within 15 meters; by adopting the rechargeable lithium battery, the rechargeable lithium battery can be continuously used for not less than 25 hours in a full-charge state; the charging interface adopts a Type-C USB interface 2 and a magnetic charging interface 8, so that the use is convenient; the teaching microphone with the idle mute function can be held by hand or used in a plurality of modes such as being matched with a magnetic hanging rope to hang a neck and the like; the teaching microphone with the idle mute function has clear tone quality and is suitable for teaching. The microphone has the advantages that the microphone is internally provided with the microphone, can be directly used and can also be externally connected, the sensitivity is high, the microphone has an automatic gain function, and the pickup range is ensured to be not less than 25 CM; the teaching microphone with the idle mute function has the function of a computer page turner, can realize the function of computer page turning with a Bluetooth receiver in a classroom, and does not need to be additionally provided with a receiver; the problem that a special receiver for the page turning pen is easy to leave in a classroom is solved. The application provides a teaching microphone with idle silence function has laser teacher's pointer function. The teaching microphone with idle silence function that this application provided has microphone volume control function. The teaching microphone with the idle mute function has the idle mute function and the howling prevention technology. The battery life is not less than 800 times of complete charge/discharge cycles (the battery capacity is not less than 70% of the initial battery capacity after 800 charge/discharge cycles); the service life of the key is not less than 100000 times; laser parameters: the effective distance of the red light spot is not less than 30 meters.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. A teaching microphone with an idle mute function, comprising:

a microphone body;

the 3-axis acceleration sensor is arranged in the microphone body and used for acquiring the acceleration of the microphone;

the controller is arranged in the microphone body and connected with the 3-axis acceleration sensor, acquires acceleration data acquired by the 3-axis acceleration sensor, and judges the pose of the microphone based on the acceleration data; and when the pose of the microphone is that the microphone reaches a preset angle, controlling the microphone body to be mute.

2. The teaching microphone with idle mute function as claimed in claim 1, wherein the 3 axes of the 3-axis acceleration sensor are respectively: an X-axis, a Y-axis, and a Z-axis; wherein, the setting direction of the X axis is the vertical upward direction when the microphone body is used.

3. The teaching microphone with idle muting function according to claim 2, wherein the data collected by the 3-axis acceleration sensor comprises: acceleration values in the X-axis direction;

the controller obtains the acceleration value of the X axial direction, and when the acceleration value of the X axial direction is lower than a preset value, the microphone body is controlled to be mute.

4. The teaching microphone with idle mute function as claimed in claim 1, wherein the microphone body comprises: a Bluetooth module adopting Bluetooth 4.0 technology or Bluetooth 5.0 technology;

the microphone body is connected with a preset communication opposite terminal through the Bluetooth module, and sends collected audio information to the preset communication opposite terminal.

5. The teaching microphone with idle mute function as claimed in claim 4, wherein the microphone body adopts a close-range preferential connection mechanism.

6. The teaching microphone with idle mute function as claimed in claim 1, wherein the microphone body comprises: and the laser pointer module is used for emitting laser.

7. The teaching microphone with idle muting function according to claim 5, further comprising: a page turning function key;

the page turning function key is connected with the controller; and after receiving the trigger signal of the page turning function key, the controller sends a page turning signal to a communication opposite terminal connected with the Bluetooth module.

8. The teaching microphone with idle mute function as claimed in claim 1, further comprising: volume button;

the volume button is connected with the controller; and after receiving the trigger signal of the volume button, the controller sends a volume adjusting signal to a communication opposite terminal connected through a Bluetooth module.

9. The teaching microphone with the idle mute function as claimed in claim 1, wherein the microphone body is provided with a microphone module;

the microphone module is connected with the audio circuit of the microphone body.

10. The teaching microphone with idle mute function as claimed in claim 1 further comprising: the device comprises a rechargeable battery and a magnetic charging interface; the rechargeable battery supplies power to the teaching microphone with the idle mute function.

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