Ultrasonic shielding device
By designing an ultrasonic jammer and combining an ultrasonic control circuit with multiple ultrasonic panels, the problem of white noise affecting calls is solved, achieving the effect of recording jamming without affecting calls.
Patent Information
- Application Number
- CN202423167488.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-12-20
AI Technical Summary
In existing technologies, white noise methods can affect normal calls when recording is masked, and the frequencies overlap with those audible to the human ear, resulting in excessive noise.
The ultrasonic jammer, through the design of the control box and multiple ultrasonic panels, ensures that all corners and edges in the target area are effectively interfered with, reducing blind spots. By using the ultrasonic control circuit to connect with the ultrasonic transmitter, recording jamming does not affect the call.
During the recording jamming process, the ultrasonic jammer effectively reduces the blind spot, ensuring normal communication and avoiding interference from white noise.
Smart Images
Figure CN223859149U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to ultrasonic shielding technical field, especially relate to an ultrasonic shielding device. BACKGROUND
[0002] At present, mainly adopt white noise method to record sound shielding, and white noise method is to emit audible noise to recording equipment, when the power of audible noise that recording equipment enters is greater than effective audio, can cover normal recording of effective audio, but in white noise interference method, because white noise frequency and human ear audible frequency are in the same range, when audible noise is too large, normal conversation will be affected. CONTENT OF THE UTILITY MODEL
[0003] The utility model aims at solving one of the technical problems in prior art at least, for this purpose, the utility model provides an ultrasonic shielding device, which can record sound shielding without affecting normal conversation.
[0004] The ultrasonic shielding device according to the first aspect of the utility model comprises:
[0005] Control box, including ultrasonic control circuit;
[0006] First ultrasonic panel, the first side of the first ultrasonic panel is uniformly spaced with multiple ultrasonic emitters, the control box is arranged on the other side of the first ultrasonic panel away from the ultrasonic emitter;
[0007] Second ultrasonic panel, the first side of the second ultrasonic panel is uniformly spaced with multiple ultrasonic emitters, the second ultrasonic panel is arranged on the second side of the first ultrasonic panel, and the included angle between the first ultrasonic panel and the second ultrasonic panel is 150 degrees;
[0008] Third ultrasonic panel, the first side of the third ultrasonic panel is uniformly spaced with multiple ultrasonic emitters, the third ultrasonic panel is arranged on the third side of the first ultrasonic panel, and the included angle between the first ultrasonic panel and the third ultrasonic panel is 150 degrees;
[0009] Wherein, the ultrasonic control circuit is connected with multiple ultrasonic emitters respectively to control the working state of the ultrasonic generator.
[0010] The ultrasonic wave shielding device has at least the following beneficial effects: the ultrasonic wave control circuit is connected with the plurality of ultrasonic wave emitters, when the ultrasonic wave shielding device is in a working state, the ultrasonic wave control circuit can simultaneously work with the plurality of ultrasonic wave emitters, the second ultrasonic wave panel and the third ultrasonic wave panel are arranged on the two sides of the first ultrasonic wave panel and have an angle of 150 degrees with the first ultrasonic wave panel, all corners and edges in the target shielding area can be effectively interfered by the ultrasonic waves, and the shielding blind area is reduced.
[0011] According to some embodiments of the present application, the ultrasonic wave control circuit comprises a control chip, a charging module and a transformer, the control chip is connected with the charging module, the charging module is connected with a primary coil of the transformer, and a secondary coil of the transformer is connected with the plurality of ultrasonic wave emitters.
[0012] According to some embodiments of the present application, the charging module comprises a first MOS tube, a second MOS tube, a third MOS tube and a fourth MOS tube, the control chip comprises a first output end and a second output end, the first output end is connected with a gate of the fourth MOS tube, a drain of the fourth MOS tube is connected with a source of the second MOS tube, a drain of the second MOS tube is connected with a first input power supply, a drain of the first MOS tube is connected with the first input power supply, a source of the first MOS tube is connected with a drain of the third MOS tube, a gate of the third MOS tube is connected with the second output end, a source of the third MOS tube and a source of the fourth MOS tube are grounded, one end of the primary coil is connected to a connection point of the source of the first MOS tube and the drain of the third MOS, and the other end of the primary coil is connected to a connection point of the source of the second MOS tube and the drain of the fourth MOS.
[0013] According to some embodiments of the utility model, the ultrasonic control circuit further includes a first drive module, the first drive module includes a first triode, a second triode, a third triode, a first capacitor, a first resistance, a second resistance, a third resistance, a fourth resistance and a fifth resistance, the first end of first resistance is connected with the first output, the second end of first resistance is connected with the base of first triode, the collector of first triode is connected with the first end of second resistance, the second end of second resistance is connected with the first end of third resistance and the base of second triode respectively, the second end of third resistance, the emitter of second triode and the first end of first capacitor are connected with the second input power supply respectively, the collector of second triode is connected with the positive electrode end of first diode, the base of third triode and the first end of fourth resistance respectively, the negative electrode end of first diode is connected with the first end of fifth resistance, the second end of fifth resistance and the emitter of third triode are connected with the gate of first MOS tube, the collector of third triode, the second end of fourth resistance and the second end of first capacitor are connected to the connection point of the source of first MOS tube and the drain of third MOS.
[0014] According to some embodiments of the utility model, the ultrasonic control circuit further includes a second drive module, the second drive module includes a fourth triode, a fifth triode, a sixth triode, a second capacitor, a sixth resistance, a seventh resistance, an eighth resistance, a ninth resistance and a tenth resistance, the first end of sixth resistance is connected with the second output, the second end of sixth resistance is connected with the base of fourth triode, the collector of fourth triode is connected with the first end of seventh resistance, the second end of seventh resistance is connected with the first end of eighth resistance and the base of fifth triode respectively, the second end of eighth resistance, the emitter of fifth triode and the first end of second capacitor are connected with the second input power supply respectively, the collector of fifth triode is connected with the positive electrode end of second diode, the base of sixth triode and the first end of ninth resistance respectively, the negative electrode end of second diode is connected with the first end of tenth resistance, the second end of tenth resistance and the emitter of sixth triode are connected with the gate of second MOS tube, the collector of sixth triode, the second end of ninth resistance and the second end of second capacitor are connected to the connection point of the source of second MOS tube and the drain of fourth MOS.
[0015] According to some embodiments of the present invention, the first driving module further includes a third diode, the positive terminal of which is connected to the second input power supply, and the negative terminal of which is connected to the second end of the third resistor, the emitter of the second transistor, and the first end of the first capacitor.
[0016] According to some embodiments of the present invention, the second driving module further includes a fourth diode, the positive terminal of which is connected to the second input power supply, and the negative terminal of which is connected to the second end of the eighth resistor, the emitter of the fifth transistor, and the first end of the second capacitor.
[0017] According to some embodiments of the present invention, the ultrasonic shield further includes the fixed base, a first connecting block, a second connecting block, and a third connecting block. The control box is fixed on the fixed base. One end of the first connecting block is connected to the fixed base, and the other end of the first connecting block is connected to the first ultrasonic panel. One end of the second connecting block is connected to the fixed base, and the other end of the second connecting block is connected to the second ultrasonic panel. One end of the third connecting block is connected to the fixed base, and the other end of the third connecting block is connected to the third ultrasonic panel.
[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:
[0020] Figure 1 This is a schematic diagram of the structure of the ultrasonic shield provided in an embodiment of the present invention;
[0021] Figure 2 for Figure 1 The diagram shows the structure of the first ultrasonic panel.
[0022] Figure 3 A circuit diagram of the charging module provided in an embodiment of this utility model;
[0023] Figure 4 A circuit diagram of the first driving module provided for an embodiment of this utility model;
[0024] Figure 5 A circuit diagram of the second driving module provided in an embodiment of this utility model;
[0025] Figure 6 A circuit diagram of a transformer provided for an embodiment of this utility model;
[0026] Figure 7 The connection diagram of multiple ultrasonic wave emitters provided by the embodiment of the utility model. DETAILED DESCRIPTION
[0027] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.
[0028] In the description of the utility model, it is understood that the orientation description, such as up, down, front, back, left, right and the like, is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a specific orientation, a specific orientation and operation, therefore, it cannot be understood as limiting the utility model.
[0029] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, more than and the like are not included in the number, above, below, within and the like are included in the number. If the first, the second is described, it is only used for distinguishing the technical features for the purpose, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.
[0030] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection and the like should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.
[0031] Referring to Figure 1 and Figure 2 , Figure 1 The structure diagram of the ultrasonic wave shield provided by the embodiment of the utility model, Figure 2 is Figure 1 The structure diagram of the first ultrasonic wave panel shown in the figure.
[0032] It can be understood that the ultrasonic shielding device comprises a control box 100, a first ultrasonic panel 300, a second ultrasonic panel 400 and a third ultrasonic panel 500, wherein a plurality of ultrasonic emitters 320 are uniformly and spacedly arranged on the first side of the first ultrasonic panel 300, the control box 100 is arranged on the other side of the first ultrasonic panel 300 away from the ultrasonic emitters 320; a plurality of ultrasonic emitters 320 are uniformly and spacedly arranged on the first side of the second ultrasonic panel 400, the second ultrasonic panel 400 is arranged on the second side of the first ultrasonic panel 300, and the included angle between the first ultrasonic panel 300 and the second ultrasonic panel 400 is 150 degrees; a plurality of ultrasonic emitters 320 are uniformly and spacedly arranged on the first side of the third ultrasonic panel 500, the third ultrasonic panel 500 is arranged on the third side of the first ultrasonic panel 300, and the included angle between the first ultrasonic panel 300 and the third ultrasonic panel 500 is 150 degrees, wherein the second ultrasonic panel 400 and the third ultrasonic panel 500 are respectively arranged on the two sides of the first ultrasonic panel 300.
[0033] It should be noted that the front of the ultrasonic emitters 320 on the first ultrasonic panel 300, the second ultrasonic panel 400 and the third ultrasonic panel 500 is the target shielding area, and by arranging the second ultrasonic panel 400 and the third ultrasonic panel 500 at an angle of 150 degrees with the first ultrasonic panel 300, it can be ensured that all corners and edges in the target shielding area can be effectively interfered by ultrasonic waves, and the shielding blind area is reduced.
[0034] It should be noted that the ultrasonic shielding device further comprises a fixed base 200, a first connecting block, a second connecting block and a third connecting block, the control box 100 is fixed on the fixed base 200, one end of the first connecting block is connected with the fixed base 200, the other end of the first connecting block is connected with the first ultrasonic panel 300, one end of the second connecting block is connected with the fixed base 200, the other end of the second connecting block is connected with the second ultrasonic panel 400, one end of the third connecting block is connected with the fixed base 200, and the other end of the third connecting block is connected with the third ultrasonic panel 500.
[0035] It should be noted that the first connecting block includes a first fixed part 310 and a first telescopic rod 311, the first fixed part 310 is fixed to the fixed base 200, one end of the first telescopic rod 311 is connected to the first fixed part 310, and the other end of the first telescopic rod 311 is connected to the first ultrasonic panel 300, and the position of the first ultrasonic panel 300 can be adjusted by adjusting the first telescopic rod 311. The second connecting block includes a second fixed part 410 and a second telescopic rod 411, the second fixed part 410 is fixed to the fixed base 200, one end of the second telescopic rod 411 is connected to the second fixed part 410, and the other end of the second telescopic rod 411 is connected to the second ultrasonic panel 400, and the position of the second ultrasonic panel 400 can be adjusted by adjusting the second telescopic rod 411. The third connecting block includes a third fixed part 510 and a third telescopic rod 511, the third fixed part 510 is fixed to the fixed base 200, one end of the third telescopic rod 511 is connected to the third fixed part 510, and the other end of the third telescopic rod 511 is connected to the third ultrasonic panel 500, and the position of the third ultrasonic panel 500 can be adjusted by adjusting the third telescopic rod 511.
[0036] Referring to Figure 3 , Figure 3 , Figure 5 , Figure 6 and Figure 7 , Figure 3 a circuit schematic diagram of the charging module provided by the embodiment of the utility model, Figure 4 a circuit schematic diagram of the first driving module provided by the embodiment of the utility model, Figure 5 a circuit schematic diagram of the second driving module provided by the embodiment of the utility model, Figure 6 a circuit schematic diagram of the transformer provided by the embodiment of the utility model, Figure 7 a connecting schematic diagram of the multiple ultrasonic wave emitters provided by the embodiment of the utility model.
[0037] It can be understood that the ultrasonic wave control circuit includes a control chip U1, a charging module and a transformer T1, the control chip U1 is connected with the charging module, the charging module is connected with the primary coil of the transformer T1, and the secondary coil of the transformer T1 is connected with the multiple ultrasonic wave emitters 320 respectively.
[0038] It should be noted that the charging module includes the first MOS tube Q1, the second MOS tube Q2, the third MOS tube Q3 and the fourth MOS tube Q4, the control chip U1 includes the first output end PWMA and the second output end PWMB, the first output end PWMA is connected with the gate of the fourth MOS tube Q4, the drain of the fourth MOS tube Q4 is connected with the source of the second MOS tube Q2, the drain of the second MOS tube Q2 is connected with the first input power supply VM=24V, the drain of the first MOS tube Q1 is connected with the first input power supply VM=24V, the source of the first MOS tube Q1 is connected with the drain of the third MOS tube Q3, the gate of the third MOS tube Q3 is connected with the second output end PWMB, the source of the third MOS tube Q3 and the source of the fourth MOS tube Q4 are grounded, one end of the primary coil is connected to the connection point of the source of the first MOS tube Q1 and the drain of the third MOS, and the other end of the primary coil is connected to the connection point of the source of the second MOS tube Q2 and the drain of the fourth MOS.
[0039] It should be noted that the ultrasonic control circuit further includes a first drive module, the first drive module includes a first transistor Q5, a second transistor Q6, a third transistor Q7, a first capacitor C1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4 and a fifth resistor R5, the first end of the first resistor R1 is connected with the first output end PWMA, the second end of the first resistor R1 is connected with the base of the first transistor Q5, the collector of the first transistor Q5 is connected with the first end of the second resistor R2, the second end of the second resistor R2 is respectively connected with the first end of the third resistor R3 and the base of the second transistor Q6, the second input power supply 14V is respectively connected with the second end of the third resistor R3, the emitter of the second transistor Q6 and the first end of the first capacitor C1, the collector of the second transistor Q6 is respectively connected with the positive end of the first diode D1, the base of the third transistor Q7 and the first end of the fourth resistor R4, the negative end of the first diode D1 is connected with the first end of the fifth resistor R5, the second end of the fifth resistor R5 and the emitter of the third transistor Q7 are both connected with the gate of the first MOS tube Q1, the collector of the third transistor Q7, the second end of the fourth resistor R4 and the second end of the first capacitor C1 are all connected to the connection point of the source of the first MOS tube Q1 and the drain of the third MOS.
[0040] It should be noted that the ultrasonic control circuit further comprises a second drive module, the second drive module comprises a fourth transistor Q8, a fifth transistor Q9, a sixth transistor Q10, a second capacitor C2, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9 and a tenth resistor R10, the first end of the sixth resistor R6 is connected with the second output end PWMB, the second end of the sixth resistor R6 is connected with the base of the fourth transistor Q8, the collector of the fourth transistor Q8 is connected with the first end of the seventh resistor R7, the second end of the seventh resistor R7 is respectively connected with the first end of the eighth resistor R8 and the base of the fifth transistor Q9, the second input power supply 14V is respectively connected with the second end of the eighth resistor R8, the emitter of the fifth transistor Q9 and the first end of the second capacitor C2, the collector of the fifth transistor Q9 is respectively connected with the positive end of the second diode D2, the base of the sixth transistor Q10 and the first end of the ninth resistor R9, the negative end of the second diode D2 is connected with the first end of the tenth resistor R10, the second end of the tenth resistor R10 and the emitter of the sixth transistor Q10 are both connected with the gate of the second MOS Q2, the collector of the sixth transistor Q10, the second end of the ninth resistor R9 and the second end of the second capacitor C2 are all connected to the connection point of the source of the second MOS Q2 and the drain of the fourth MOS.
[0041] It should be noted that the first drive module further comprises a third diode D3, the positive end of the third diode D3 is connected with the second input power supply 14V, and the negative end of the third diode D3 is respectively connected with the second end of the third resistor R3, the emitter of the second transistor Q6 and the first end of the first capacitor C1.
[0042] It should be noted that the second drive module further comprises a fourth diode D4, the positive end of the fourth diode D4 is connected with the second input power supply 14V, and the negative end of the fourth diode D4 is respectively connected with the second end of the eighth resistor R8, the emitter of the fifth transistor Q9 and the first end of the second capacitor C2.
[0043] It can be understood that the control chip U1 alternately controls the first MOS Q1 and the fourth MOS Q4 to be turned on at the same time and the second MOS Q2 and the third MOS Q3 to be turned on at the same time, generates current in different directions, and then drives the ultrasonic probe to work through the transformer T1. In addition, according to the working frequency of the ultrasonic transmitter 320, the frequency of the signals output by the first output end PWMA and the second output end PWMB can be adjusted, and then the frequency of the first MOS Q1 and the fourth MOS Q4 being turned on at the same time and the second MOS Q2 and the third MOS Q3 being turned on at the same time can be controlled.
[0044] The utility model embodiment makes the detailed explanation in combination with the drawing, but the utility model is not limited to the above -mentioned embodiment, still can make various changes in the knowledge range that the person skilled in the art has possesses without departing from the utility model's tenet under the precondition that the knowledge range that the person skilled in the art has possesses.
Claims
1. An ultrasonic shield, characterized by, The utility model relates to an ultrasonic control device, including: a control box including an ultrasonic control circuit; a first ultrasonic panel, a plurality of ultrasonic emitters being uniformly spaced on a first side of the first ultrasonic panel, the control box being disposed on an opposite side of the first ultrasonic panel from the ultrasonic emitters; a second ultrasonic panel, a plurality of the ultrasonic emitters being uniformly spaced on a first side of the second ultrasonic panel, the second ultrasonic panel being disposed on a second side of the first ultrasonic panel, the first ultrasonic panel and the second ultrasonic panel forming an angle of 150 degrees; a third ultrasonic panel, a plurality of the ultrasonic emitters being uniformly spaced on a first side of the third ultrasonic panel, the third ultrasonic panel being disposed on a third side of the first ultrasonic panel, the first ultrasonic panel and the third ultrasonic panel forming an angle of 150 degrees; wherein the ultrasonic control circuit is connected to the plurality of ultrasonic emitters to control the working state of the ultrasonic generator.
2. The ultrasonic shield of claim 1, wherein, The ultrasonic control circuit includes a control chip, a charging module, and a transformer, the control chip being connected to the charging module, the charging module being connected to a primary coil of the transformer, and a secondary coil of the transformer being connected to the plurality of ultrasonic emitters.
3. The ultrasonic shield of claim 2, wherein, The charging module includes a first MOS tube, a second MOS tube, a third MOS tube, and a fourth MOS tube, the control chip includes a first output terminal and a second output terminal, the first output terminal being connected to a gate of the fourth MOS tube, a drain of the fourth MOS tube being connected to a source of the second MOS tube, a drain of the second MOS tube being connected to a first input power supply, a drain of the first MOS tube being connected to the first input power supply, a source of the first MOS tube being connected to a drain of the third MOS tube, a gate of the third MOS tube being connected to the second output terminal, a source of the third MOS tube and a source of the fourth MOS tube both being grounded, one end of the primary coil being connected to a connection point of the source of the first MOS tube and the drain of the third MOS, and the other end of the primary coil being connected to a connection point of the source of the second MOS tube and the drain of the fourth MOS.
4. The ultrasonic shield of claim 3, wherein, The ultrasonic control circuit further comprises a first drive module, the first drive module comprises a first triode, a second triode, a third triode, a first capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor and a fifth resistor, the first end of the first resistor is connected with the first output end, the second end of the first resistor is connected with the base of the first triode, the collector of the first triode is connected with the first end of the second resistor, the second end of the second resistor is connected with the first end of the third resistor and the base of the second triode respectively, the second input power supply is connected with the second end of the third resistor, the emitter of the second triode and the first end of the first capacitor respectively, the collector of the second triode is connected with the positive electrode end of the first diode, the base of the third triode and the first end of the fourth resistor respectively, the negative electrode end of the first diode is connected with the first end of the fifth resistor, the second end of the fifth resistor and the emitter of the third triode are connected with the gate of the first MOS tube, the collector of the third triode, the second end of the fourth resistor and the second end of the first capacitor are connected to the connection point of the source of the first MOS tube and the drain of the third MOS.
5. The ultrasonic shield of claim 3, wherein, The ultrasonic control circuit further comprises a second drive module, the second drive module comprises a fourth triode, a fifth triode, a sixth triode, a second capacitor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor and a tenth resistor, the first end of the sixth resistor is connected with the second output end, the second end of the sixth resistor is connected with the base of the fourth triode, the collector of the fourth triode is connected with the first end of the seventh resistor, the second end of the seventh resistor is connected with the first end of the eighth resistor and the base of the fifth triode respectively, the second input power supply is connected with the second end of the eighth resistor, the emitter of the fifth triode and the first end of the second capacitor respectively, the collector of the fifth triode is connected with the positive electrode end of the second diode, the base of the sixth triode and the first end of the ninth resistor respectively, the negative electrode end of the second diode is connected with the first end of the tenth resistor, the second end of the tenth resistor and the emitter of the sixth triode are connected with the gate of the second MOS tube, the collector of the sixth triode, the second end of the ninth resistor and the second end of the second capacitor are connected to the connection point of the source of the second MOS tube and the drain of the fourth MOS.
6. The ultrasonic shield of claim 4, wherein, The first drive module further comprises a third diode, the positive electrode end of the third diode is connected with the second input power supply, the negative electrode end of the third diode is connected with the second end of the third resistor, the emitter of the second triode and the first end of the first capacitor respectively.
7. The ultrasonic shield of claim 5, wherein, The second drive module further comprises a fourth diode, the positive electrode end of the fourth diode is connected with the second input power supply, the negative electrode end of the fourth diode is connected with the second end of the eighth resistor, the emitter of the fifth triode and the first end of the second capacitor respectively.
8. The ultrasonic shield of claim 1, wherein, The ultrasonic wave shield further comprises a fixed base, a first connecting block, a second connecting block and a third connecting block, the control box is fixed on the fixed base, one end of the first connecting block is connected with the fixed base, the other end of the first connecting block is connected with the first ultrasonic wave panel, one end of the second connecting block is connected with the fixed base, the other end of the second connecting block is connected with the second ultrasonic wave panel, one end of the third connecting block is connected with the fixed base, and the other end of the third connecting block is connected with the third ultrasonic wave panel.