CN211978107U - Sound detection device and sound control system - Google Patents
Sound detection device and sound control system Download PDFInfo
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- CN211978107U CN211978107U CN202020916339.7U CN202020916339U CN211978107U CN 211978107 U CN211978107 U CN 211978107U CN 202020916339 U CN202020916339 U CN 202020916339U CN 211978107 U CN211978107 U CN 211978107U
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- 238000001514 detection method Methods 0.000 title claims abstract description 94
- 239000007788 liquid Substances 0.000 claims abstract description 97
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 244000089409 Erythrina poeppigiana Species 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 235000009776 Rathbunia alamosensis Nutrition 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- WABPQHHGFIMREM-RNFDNDRNSA-N lead-211 Chemical compound [211Pb] WABPQHHGFIMREM-RNFDNDRNSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The application discloses a sound detection device and a sound control system. The sound detection device comprises a cavity; the cavity comprises a main body part and a conduit part; the main body part is internally provided with an accommodating space for accommodating the indicating liquid, the side wall of the main body part is also provided with a through hole communicated with the accommodating space, and the opening of the through hole is covered with a vibrating diaphragm for sealing the accommodating space; the central channel of the conduit part is communicated with the accommodating space; wherein, the vibrating diaphragm is used for receiving the sound wave and vibrating under the influence of the sound wave, so that the liquid level of the indicating liquid in the central channel of the conduit part changes, and the intensity of the sound wave is determined through the height change of the liquid level in the central channel of the conduit part. The sound detection device provided by the application is simple in structure and high in reliability.
Description
Technical Field
The application relates to the technical field of sound detection equipment, in particular to a sound detection device and a sound control system.
Background
The existing sound wave intensity detection device usually adopts a sound detection device for detection. The general capacitive sound sensor that is of sound check out test set wherein detects through converting sound wave signal into the signal of telecommunication, enlargies certain amplitude with the signal through the decay amplifier, sends effective wave detector to, then gives the numerical value of noise sound level, and other systems such as this type of sound check out test set need collocation power amplification and operation usually realize the detection function jointly, and are comparatively complicated.
SUMMERY OF THE UTILITY MODEL
The application provides a sound detection device, acoustic control system to solve other systems such as current sound check out test set often need collocation power amplification and operation and realize the detection function jointly, comparatively complicated problem.
In order to solve the technical problem, the application adopts a technical scheme that: providing a sound detection device, wherein the sound detection device comprises a cavity; the cavity comprises a main body part and a conduit part;
the main body part is internally provided with an accommodating space for accommodating indicating liquid, the side wall of the main body part is also provided with a through hole communicated with the accommodating space, and the opening of the through hole is covered with a vibrating diaphragm for sealing the accommodating space;
the central channel of the conduit part is communicated with the accommodating space;
the vibrating diaphragm is used for receiving sound waves and vibrating under the influence of the sound waves, so that the liquid level of the indicating liquid in the central channel of the conduit part is changed, and the volume of the sound corresponding to the sound waves is determined through the height change of the liquid level in the central channel of the conduit part.
The sound detection device comprises a central channel, an indication liquid, a conduit part and a sound detection device, wherein the indication liquid is conductive liquid, the conduit part is provided with a first detection part and a second detection part which are communicated to the central channel, the sound detection device further comprises a detection circuit, the detection circuit comprises a detector, a first electrode of the detector is electrically connected with the first detection part through a first lead, and a second electrode of the detector is electrically connected with the second detection part through a second lead;
the first detection part is communicated to a first preset position in the conduit part, and the first preset position is positioned below the initial liquid level of the conductive liquid in the conduit part; the second detection part is communicated to a second preset position in the conduit part, and the second preset position is positioned above the initial liquid level of the conductive liquid in the conduit part.
Wherein,
the number of the second detection parts is multiple, and the second detection parts are sequentially arranged along the direction of the guide pipe part away from the main body part;
wherein each of the plurality of second detection parts is electrically connected to the second electrode of the detector.
Wherein,
when the liquid level of the conductive liquid of the conduit part reaches the second preset position, the detection circuit is a passage; and when the liquid level of the conductive liquid in the conduit part does not reach the second preset position, the detection circuit is an open circuit.
Wherein,
the conductive liquid is liquid metal or conductive solution.
Wherein,
the density of the conductive liquid is (1.00-13.59) g/cm3。
Wherein,
the containing space of the main body part is filled with the indicating liquid.
Wherein,
an opening is formed in one end, far away from the main body part, of the conduit part, and the conduit part is communicated with the outside atmosphere through the opening.
Wherein,
the conduit portion has a diameter smaller than a diameter of the main body portion.
In order to solve the above technical problem, another technical solution adopted by the present application is: there is provided a voice control system comprising a voice detection device as described above and a functional circuit coupled to the detection circuit, the functional circuit being configured to enter a pass state when the conductive liquid in the conduit part reaches the second detection part and makes the detection circuit pass, so as to realize a preset function of the functional circuit.
Different from the prior art, the application provides a sound detection device and a sound control system. The vibration diaphragm absorbs sound waves to generate vibration, so that part of the indicating liquid in the main body part of the cavity is extruded into the cavity conduit part, the liquid level change of the indicating liquid in the conduit part is caused, and the detection of the sound wave intensity can be realized by detecting the liquid level change of the indicating liquid in the conduit part. The formed sound detection device is simple in structure and high in reliability.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
fig. 1 is a schematic structural diagram of an embodiment of a sound detection apparatus provided in the present application;
fig. 2 is a schematic structural diagram of an embodiment of a voice control system provided in the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are referred to in the embodiments of the present application, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating 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 addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
Please refer to fig. 1. Fig. 1 is a schematic structural diagram of an embodiment of a sound detection apparatus provided in the present application.
The sound detection device 10 includes a chamber 100, and the chamber 100 includes a main body portion 110 and a conduit portion 120; the main body 110 has an accommodating space for accommodating the indicator liquid, a through hole communicating with the accommodating space is further formed in the side wall of the main body 110, and a vibrating diaphragm 130 is covered at the opening of the through hole for sealing the accommodating space; the central passage of the conduit part 120 is communicated with the accommodating space; the vibrating diaphragm 130 is configured to receive a preset sound wave and vibrate under the influence of the sound wave, so that the liquid level of the indicator liquid in the central channel of the conduit portion 120 changes, and the sound wave intensity is determined by the change in the liquid level in the central channel of the conduit portion 120.
In this embodiment, the vibration diaphragm 130 absorbs the energy vibration of the sound wave, so as to convert the energy of the sound wave into mechanical energy, and thus the indicating liquid in the accommodating space can be squeezed, so that part of the indicating liquid enters the central channel of the conduit portion 120, so that the liquid level of the indicating liquid in the central channel of the conduit portion 120 changes, and the intensity of the sound wave can be detected through the liquid level change of the indicating liquid in the conduit portion 120. The sound detection device in the embodiment has a simple structure and high reliability.
Optionally, by setting a scale value corresponding to the intensity of the sound wave along the conduit portion 120, when the liquid level in the conduit portion 120 reaches a preset scale value, it can be said that the intensity of the sound wave reaches the preset scale value.
Please refer to fig. 1.
In this embodiment, the sound detection device 10 further includes a detection circuit 200, wherein the detection circuit 200 can detect the change in the liquid level of the indicator liquid in the conduit part 120, thereby determining the value of the change in the liquid level of the indicator liquid in the conduit part 120, and thereby determining the intensity of the sound wave. The intensity of the acoustic wave is indicated to be higher as the numerical value of the rise of the liquid level of the indicator liquid in the conduit portion 120 is higher.
Specifically, the indication liquid in the accommodating space of the main body 110 may be a conductive liquid. The conductive liquid may be liquid metal or conductive solution, gallium metal when the conductive liquid is liquid metal, or ammonia water when the conductive liquid is conductive solution. Wherein the density of the conductive liquid is 1.00-13.59 g/cm3。
The accommodating space of the main body 110 may be filled with the indicating liquid, and the initial liquid level of the indicating liquid in the conduit 120 may be flush with the liquid level in the accommodating space or may be higher than the liquid level in the accommodating space.
The conduit part 120 is provided with a first detection part 121 and a second detection part 122 communicated to the central channel, the detection circuit 200 comprises a detector 210, wherein the detector 210 may comprise a first electrode 211 and a second electrode 212, the first electrode 211 and the second electrode 212 may be the positive and negative electrodes of the detector 210, respectively, the first electrode of the detector 210 is electrically connected with the first detection part 121 through a first lead 211, and the second electrode 212 of the detector 210 is electrically connected with the second detection part 122 through a second lead; wherein, the first detecting part 121 is connected to a first preset position in the conduit part 120, and the first preset position is located below the initial liquid level of the conductive liquid in the conduit part 120; the second detecting portion 122 is connected to a second predetermined position in the conduit portion 120, and the second predetermined position is located above the initial liquid level of the conductive liquid in the conduit portion 120.
Therefore, when the intensity of the sound wave absorbed by the vibrating diaphragm 130 reaches a preset value, the liquid level of the conductive liquid in the conduit part 120 can reach a second preset position, and at this time, the detection circuit 200 can be in a closed state; when the intensity of the sound wave absorbed by the vibrating diaphragm 130 does not reach the preset value, the liquid level of the conductive liquid in the conduit part 120 is made not to reach the second preset position, and at this time, the detection circuit 200 may be in an open circuit state.
In this embodiment, the conduit part 120 may be connected to the side end of the main body part 110, or may be disposed at the tip end of the main body part 110; here, the axis of the conduit part 120 may be perpendicular to the horizontal plane when performing the acoustic wave detection (i.e., the conduit part 120 is disposed in the vertical direction), or the axis of the conduit part 120 may be disposed at an acute angle to the horizontal plane (i.e., the conduit part 120 is disposed obliquely to the horizontal direction). An opening is provided at one end of the conduit part 120 remote from the main body part 110, and the conduit part 120 communicates with the outside atmosphere through the opening.
Please further refer to fig. 1. In the present embodiment, the intensity of the acoustic wave is determined by the change in the liquid level in the central passage of the conduit part 120, and therefore, the intensity of the acoustic wave can be determined by detecting the change in the liquid level in the central passage of the conduit part 120, wherein, when the indicator fluid is a conductive fluid, the change in the liquid level can be detected by the detector 210, the detector 210 may include any one of a voltmeter, an ammeter, or a multimeter, and when the detector 210 includes a voltmeter and an ammeter, the detector 210 further includes a power supply to supply power to the voltmeter and the ammeter. The resistance of the varying section of the liquid column in the conduit part 120 is detected by the detector 210, and then the varying height of the liquid level in the conduit part 120 is determined by the detected resistance.
Specifically, as shown in fig. 1, a dotted line a is an initial liquid level of the conductive liquid in the conduit portion 120, an included angle between the conduit portion 120 and the horizontal plane is a, a resistivity of the conductive liquid is ρ, a variation height of the liquid level in the conduit portion 120 is H, and a cross-sectional area of the conduit portion 120 is s, and then a resistance R of a liquid column variation section in the conduit portion 120 can be expressed as:
R＝ρ*H/(s*sina)。
in this embodiment, the number of the second detecting portions 122 is plural, the plural second detecting portions 122 are sequentially disposed along the direction of the conduit portion 120 away from the main body portion 110, and the plural second detecting portions 122 are all electrically connected to the second electrode of the detector 210; the plurality of second detection parts 122 sequentially disposed in the direction in which the conduit part 120 is distant from the body part 110 may sequentially correspond to detecting acoustic waves of different intensities.
In this embodiment, the diameter of the conduit portion 120 is smaller than the diameter of the main body portion 110 to improve the sensitivity of the acoustic wave detection, wherein the diameter of the central through hole of the conduit portion 120 may be designed to be a predetermined size.
Furthermore, the application also provides a voice control system. Referring to fig. 2, fig. 2 is a schematic structural diagram of an embodiment of a voice control system according to the present application.
The voice control system 30 may include the sound detection device 10 and the functional circuit 310 as described above, wherein the functional circuit 310 may be electrically connected to the detection circuit 200, and when the intensity of the sound wave absorbed by the vibrating diaphragm 130 in the sound detection device 10 reaches a preset value and the detection circuit 200 is in the on-state, the functional circuit 310 electrically connected to the detection circuit 200 may also be in the on-state, so as to implement the function of the functional circuit 310.
For example, the sound detection device 10 may be a sound-controlled lamp system. The functional circuit 310 may include an illumination lamp, and when the intensity of the sound wave absorbed by the vibrating diaphragm 130 in the sound detection apparatus 10 reaches a preset value and the detection circuit 200 is made to be in the path, the functional circuit 310 electrically connected to the detection circuit 200 may also be made to be in the path, so that the illumination lamp may illuminate.
In this embodiment, only when the intensity of the sound wave absorbed by the vibrating diaphragm 130 reaches the preset value, the detecting circuit 200 and the functional circuit 310 may be triggered to be in the on state, and if the intensity of the sound wave absorbed by the vibrating diaphragm 130 does not reach the preset value, the detecting circuit 200 and the functional circuit 310 are in the off state, so that the energy consumption of the whole sound control system 30 may be reduced.
In summary, the present application provides a sound detection apparatus and a sound control system. The vibration diaphragm absorbs sound waves to generate vibration, so that part of the indicating liquid in the main body part of the cavity is extruded into the cavity conduit part, the liquid level change of the indicating liquid in the conduit part is caused, the detection of the sound wave intensity can be realized by detecting the liquid level change of the indicating liquid in the conduit part, and the formed sound detection device has a simple structure and high reliability; meanwhile, when the intensity of the sound waves absorbed by the vibrating diaphragm reaches a preset value, the detecting circuit and the functional circuit can be triggered to be in an on state, and if the intensity of the sound waves absorbed by the vibrating diaphragm does not reach the preset value, the detecting circuit and the functional circuit are in an off state, so that the energy consumption of the whole sound control system can be reduced.
The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (10)
1. The sound detection device is characterized by comprising a cavity; the cavity comprises a main body part and a conduit part;
the main body part is internally provided with an accommodating space for accommodating indicating liquid, the side wall of the main body part is also provided with a through hole communicated with the accommodating space, and the opening of the through hole is covered with a vibrating diaphragm for sealing the accommodating space;
the central channel of the conduit part is communicated with the accommodating space;
the vibrating diaphragm is used for receiving sound waves and vibrating under the influence of the sound waves, so that the liquid level of the indicating liquid in the central channel of the conduit part is changed, and the intensity of the sound waves is determined through the height change of the liquid level in the central channel of the conduit part.
2. The sound detection device according to claim 1, wherein the indicator liquid is a conductive liquid, the conduit portion has a first detection portion and a second detection portion communicating with the central passage, the sound detection device further comprises a detection circuit, the detection circuit comprises a detector, a first electrode of the detector is electrically connected to the first detection portion through a first wire, and a second electrode of the detector is electrically connected to the second detection portion through a second wire;
the first detection part is communicated to a first preset position in the conduit part, and the first preset position is positioned below the initial liquid level of the conductive liquid in the conduit part; the second detection part is communicated to a second preset position in the conduit part, and the second preset position is positioned above the initial liquid level of the conductive liquid in the conduit part.
3. The sound detection apparatus according to claim 2,
the number of the second detection parts is multiple, and the second detection parts are sequentially arranged along the direction of the guide pipe part away from the main body part;
wherein each of the plurality of second detection parts is electrically connected to the second electrode of the detector.
4. The sound detection apparatus according to claim 2 or 3,
when the liquid level of the conductive liquid of the conduit part reaches the second preset position, the detection circuit is a passage; and when the liquid level of the conductive liquid in the conduit part does not reach the second preset position, the detection circuit is an open circuit.
5. The sound detection apparatus according to claim 2,
the conductive liquid comprises a liquid metal or a conductive solution.
6. The sound detection apparatus of claim 5,
the density of the conductive liquid is (1.00-13.59) g/cm3。
7. The sound detection apparatus according to claim 2,
the containing space of the main body part is filled with the indicating liquid.
8. The sound detection apparatus according to claim 2,
an opening is formed in one end, far away from the main body part, of the conduit part, and the conduit part is communicated with the outside atmosphere through the opening.
9. The sound detection apparatus of claim 8,
the conduit portion has a diameter smaller than a diameter of the main body portion.
10. A voice controlled system comprising a voice detection device according to any one of claims 2 to 9 and a functional circuit coupled to the detection circuit, wherein the functional circuit is configured to enter a pass state when the conductive liquid in the conduit portion reaches the second detection portion and the detection circuit is made to pass, so as to realize a predetermined function of the functional circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020916339.7U CN211978107U (en) | 2020-05-26 | 2020-05-26 | Sound detection device and sound control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020916339.7U CN211978107U (en) | 2020-05-26 | 2020-05-26 | Sound detection device and sound control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211978107U true CN211978107U (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020916339.7U Active CN211978107U (en) | 2020-05-26 | 2020-05-26 | Sound detection device and sound control system |
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| CN (1) | CN211978107U (en) |
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- 2020-05-26 CN CN202020916339.7U patent/CN211978107U/en active Active
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