CN210574111U - Sound control circuit for intelligent alarm - Google Patents
Sound control circuit for intelligent alarm Download PDFInfo
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- CN210574111U CN210574111U CN201921417311.2U CN201921417311U CN210574111U CN 210574111 U CN210574111 U CN 210574111U CN 201921417311 U CN201921417311 U CN 201921417311U CN 210574111 U CN210574111 U CN 210574111U
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Abstract
The utility model provides a sound control circuit for intelligence is reported to police, connect audio amplifier work power end including micro-control unit alarm signal transmitting terminal, audio amplifier work signal input is connected to audio amplifier alarm work end, and first speaker is connected to amplifier left sound channel output, and the second speaker is connected to amplifier right sound channel output. The alarm can give an alarm in time, the alarm sound is continuously generated, the transmission range of the alarm sound is large, people are evacuated in time, and the loss caused by disaster is reduced.
Description
Technical Field
The utility model relates to a security protection warning technical field, concretely relates to sound control circuit for intelligent alarm.
Background
An alarm is an electronic product that prevents or prevents the consequences of an event to remind or alert us that some action should be taken. The alarm is divided into a mechanical alarm and an electronic alarm. With the progress of science and technology, mechanical alarms are increasingly replaced by advanced electronic alarms, are often applied to the fields of system faults, safety precaution, transportation, medical treatment and rescue, emergency relief, induction detection and the like, and are inseparable from social production.
With the gradual increase of population, especially in urban areas with dense population, the potential social safety hazard is greater, and it is especially important to develop a device capable of rapidly alarming.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving the technical problem who exists among the prior art at least, creatively provide a sound control circuit for intelligent warning very much, can in time report to the police that remains stable sounds.
In order to realize the above object of the utility model, the utility model provides a sound control circuit for intelligence is reported to police, connect audio amplifier work power end including micro-control unit alarm signal transmitting terminal, audio amplifier work signal input is connected to audio amplifier alarm work end, and first speaker is connected to amplifier left sound channel output, and the second speaker is connected to amplifier right sound channel output.
In the scheme, the method comprises the following steps: the alarm signal transmitting end of the micro-control unit is connected with one end of a seventh resistor, the other end of the seventh resistor is connected with one end of a sixth resistor and the base of a second triode, the other end of the sixth resistor and the collector of the second triode are both connected with a power supply, the emitter of the second triode is connected with one end of a second capacitor and the working power end of an audio device, the other end of the second capacitor and the grounding end of the audio device are both grounded, the alarm working end of the audio device is connected with one end of a first resistor, and the other end of the first resistor is connected.
In the scheme, the method comprises the following steps: the power amplifier turn-off controlled end is connected with one end of a third resistor and a collector of a first triode, the other end of the third resistor is connected with a power supply, an emitter of the first triode is grounded, a base of the first triode is connected with one end of a fifth resistor, the other end of the fifth resistor is connected with one end of a fourth resistor and a turn-off control end of the micro-control unit, and the other end of the fourth resistor is connected with the power supply;
in the scheme, the method comprises the following steps: the input negative electrode of the left sound channel of the amplifier is connected with one end of a fifth capacitor, the other end of the fifth capacitor is connected with one end of a second resistor, and the other end of the second resistor is connected with the other end of a third capacitor;
the negative input pole of the right sound channel of the power amplifier is connected with one end of a first capacitor, the other end of the first capacitor is connected with one end of a ninth resistor, and the other end of the ninth resistor is connected with the other end of a third capacitor.
In the scheme, the method comprises the following steps: the left channel output negative electrode of the power amplifier is connected with one end of a first filter, the other end of the first filter is connected with one end of an eleventh capacitor and a first working input end of a first loudspeaker, the other end of the eleventh capacitor is grounded, the left channel output positive electrode of the power amplifier is connected with one end of a second filter, the other end of the second filter is connected with one end of a twelfth capacitor and a second working input end of the first loudspeaker, and the other end of the twelfth capacitor is grounded;
and the output negative electrode of the right sound channel of the power amplifier is connected with one end of a seventeenth capacitor, the other end of the seventeenth capacitor is connected with a second working input end of a second loudspeaker and one end of an eighth resistor, and the other end of the seventeenth resistor and the first working input end of the second loudspeaker are grounded.
In the scheme, the method comprises the following steps: a first power supply input end of the power amplifier U1 is connected with a second power supply input end, the second power supply input end is connected with one end of an eighth capacitor C8, one end of a seventh capacitor C7, one end of a fourth capacitor C4 and a power supply, and the other end of the eighth capacitor C8, the other end of the seventh capacitor C7 and the other end of the fourth capacitor C4 are all grounded; the shunt capacitor end of the power amplifier U1 is connected to one end of a fifty-third capacitor C53, and the other end of the fifty-third capacitor C53 is grounded.
In the scheme, the method comprises the following steps: the micro-control unit crystal oscillator input end is connected with one end of a first crystal oscillator and one end of a sixth capacitor, the control module crystal oscillator output end is connected with the other end of the first crystal oscillator and one end of a ninth capacitor, and the other end of the sixth capacitor and the other end of the ninth capacitor are both grounded.
In the scheme, the method comprises the following steps: the reset end of the micro-control unit is connected with one end of a tenth resistor and one end of a sixteenth capacitor, the other end of the tenth resistor is connected with a second low-voltage output end of the power supply circuit, and the other end of the sixteenth capacitor is grounded.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that: the alarm signal can be quickly sent, the alarm sound is continuously sounded, and field workers are prompted to check and leave other personnel; meanwhile, the alarm sound propagation range is large, the alarm sound can be sent to the outside, and personnel on site can be rescued in time.
Additional aspects and advantages of the 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.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a circuit diagram of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 1, a sound control circuit for intelligent alarm includes a micro-control unit U3, an alarm signal emitting end connected to an operating power supply end of an audio U2, an alarm operating end of an audio U2 connected to an operating signal input end of an amplifier U1, a left channel output end of the amplifier U1 connected to a first speaker LS1, and a right channel output end of the amplifier U1 connected to a second speaker LS 2.
Specifically, the emission end of the alarm signal of the micro-control unit U3 is connected to one end of a seventh resistor R7, the other end of the seventh resistor R7 is connected to one end of a sixth resistor R6 and the base of a second triode Q2, the other end of the sixth resistor R6 and the collector of the second triode Q2 are both connected to a power supply, the emitter of the second triode Q2 is connected to one end of a second capacitor C2 and the working power supply end of an audio U2, the other end of the second capacitor C2 and the ground end of the audio U2 are both grounded, the alarm working end of the audio U2 is connected to one end of a first resistor R1, and the other end of the first resistor R1 is connected to one end of.
The turn-off controlled end of the power amplifier U1 is connected with one end of a third resistor R3 and a collector of a first triode Q1, the other end of the third resistor R3 is connected with a power supply, an emitter of the first triode Q1 is grounded, a base of a first triode Q1 is connected with one end of a fifth resistor R5, the other end of the fifth resistor R5 is connected with one end of a fourth resistor R4 and a turn-off control end of a micro-control unit U3, and the other end of the fourth resistor R4 is connected with the power supply;
the earphone mode control end of the power amplifier U1 is connected with one end of a seventy-first resistor R71, the other end of the seventy-first resistor R71 is connected with one end of a seventy-first resistor R70 and one end of a sixty-ninth resistor R69, the other end of the seventy-first resistor R70 is grounded, and the other end of the sixty-ninth resistor R69 is connected with a power supply;
the negative input of the left channel of the power amplifier U1 is connected to one end of a fifth capacitor C5, the other end of the fifth capacitor C5 is connected to one end of a second resistor R2, and the other end of the second resistor R2 is connected to the other end of a third capacitor C3.
The negative electrode of the right channel input of the power amplifier U1 is connected to one end of a first capacitor C1, the other end of the first capacitor C1 is connected to one end of a ninth resistor R9, and the other end of the ninth resistor R9 is connected to the other end of a third capacitor C3.
The negative electrode of the left channel output of the power amplifier U1 is connected with one end of a first filter LB1, the other end of the first filter LB1 is connected with one end of an eleventh capacitor C11 and a first working input end of a first loudspeaker LS1, the other end of the eleventh capacitor C11 is grounded, the positive electrode of the left channel output of the power amplifier U1 is connected with one end of a second filter LB2, the other end of the second filter LB2 is connected with one end of a twelfth capacitor C12 and a second working input end of the first loudspeaker LS1, and the other end of the twelfth capacitor C12 is grounded;
the negative electrode of the right channel output of the power amplifier U1 is connected with one end of a seventeenth capacitor C17, the other end of the seventeenth capacitor C17 is connected with a second working input end of a second loudspeaker LS2 and one end of an eighth resistor R8, and the other end of a seventeenth resistor R72 and a first working input end of the second loudspeaker LS2 are both grounded.
A first power supply input end of the power amplifier U1 is connected with a second power supply input end, the second power supply input end is connected with one end of an eighth capacitor C8, one end of a seventh capacitor C7, one end of a fourth capacitor C4 and a power supply, and the other end of the eighth capacitor C8, the other end of the seventh capacitor C7 and the other end of the fourth capacitor C4 are all grounded; the shunt capacitor end of the power amplifier U1 is connected to one end of a fifty-third capacitor C53, and the other end of the fifty-third capacitor C53 is grounded.
The input end of the micro-control unit U3 crystal oscillator is connected with one end of a first crystal oscillator Y1 and one end of a sixth capacitor C6, the output end of the micro-control unit U3 crystal oscillator is connected with the other end of the first crystal oscillator Y1 and one end of a ninth capacitor C9, and the other end of the sixth capacitor C6 and the other end of the ninth capacitor C9 are both grounded.
The reset end of the micro-control unit U3 is connected with one end of a tenth resistor R10 and one end of a sixteenth capacitor C16, the other end of the tenth resistor R10 is connected with a second low-voltage output end of the power supply circuit, and the other end of the sixteenth capacitor C16 is grounded.
The model of the micro-control unit U3 is STM32F030C8T6, and the model of the power amplifier U1 is NS 4248.
When a disaster occurs, a starting alarm instruction is sent to the audio device U2 through the micro control unit U3, the audio device U2 sends a sound alarm signal, the sound alarm signal is amplified through the power amplifier U1 and is transmitted to the first loudspeaker LS1 and the second loudspeaker LS2, the alarm sound is sent through the first loudspeaker LS1 and the second loudspeaker LS2, an alarm signal is sent to field personnel, and the field personnel can leave the field personnel in time.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. The utility model provides a sound control circuit for intelligent warning which characterized in that: the device comprises a micro-control unit (U3), wherein an alarm signal transmitting end of the micro-control unit is connected with a working power supply end of an audio device (U2), an alarm working end of the audio device (U2) is connected with a working signal input end of a power amplifier (U1), a left sound channel output end of the power amplifier (U1) is connected with a first loudspeaker (LS1), and a right sound channel output end of the power amplifier (U1) is connected with a second loudspeaker (LS 2).
2. The sound control circuit of claim 1, wherein: the alarm signal transmitting end of the micro-control unit (U3) is connected with one end of a seventh resistor (R7), the other end of the seventh resistor (R7) is connected with one end of a sixth resistor (R6) and the base of a second triode (Q2), the other end of the sixth resistor (R6) and the collector of the second triode (Q2) are both connected with a power supply, the emitter of the second triode (Q2) is connected with one end of a second capacitor (C2) and the working power supply end of an audio device (U2), the other end of the second capacitor (C2) and the grounding end of the audio device (U2) are both grounded, the alarm working end of the audio device (U2) is connected with one end of a first resistor (R1), and the other end of the first resistor (R1) is connected with one end of a third capacitor (.
3. The sound control circuit of claim 2, wherein: the power amplifier (U1) turns off the controlled end and connects third resistance (R3) one end and first triode (Q1) collecting electrode, the power is connected to the third resistance (R3) other end, first triode (Q1) emitter ground, fifth resistance (R5) one end is connected to first triode (Q1) base, fourth resistance (R4) one end and micro-control unit (U3) turn-off control end are connected to the fifth resistance (R5) other end, the fourth resistance (R4) other end connects the power.
4. The sound control circuit of claim 3, wherein: the negative input pole of the left channel of the power amplifier (U1) is connected with one end of a fifth capacitor (C5), the other end of the fifth capacitor (C5) is connected with one end of a second resistor (R2), and the other end of the second resistor (R2) is connected with the other end of a third capacitor (C3);
the negative electrode of the right channel input of the power amplifier (U1) is connected with one end of a first capacitor (C1), the other end of the first capacitor (C1) is connected with one end of a ninth resistor (R9), and the other end of the ninth resistor (R9) is connected with the other end of a third capacitor (C3).
5. The sound control circuit of claim 3, wherein: the negative electrode of the left channel output of the power amplifier (U1) is connected with one end of a first filter (LB1), the other end of the first filter (LB1) is connected with one end of an eleventh capacitor (C11) and a first working input end of a first loudspeaker (LS1), the other end of the eleventh capacitor (C11) is grounded, the positive electrode of the left channel output of the power amplifier (U1) is connected with one end of a second filter (LB2), the other end of the second filter (LB2) is connected with one end of a twelfth capacitor (C12) and a second working input end of the first loudspeaker (LS1), and the other end of a twelfth capacitor (C12) is grounded;
the negative electrode of the right sound channel output of the power amplifier (U1) is connected with one end of a seventeenth capacitor (C17), the other end of the seventeenth capacitor (C17) is connected with a second working input end of a second loudspeaker (LS2) and one end of an eighth resistor (R8), and the other end of a seventeenth resistor (R72) and the first working input end of the second loudspeaker (LS2) are both grounded.
6. The sound control circuit of claim 2, wherein: a first power supply input end of the power amplifier (U1) is connected with a second power supply input end, the second power supply input end is connected with one end of an eighth capacitor (C8), one end of a seventh capacitor (C7), one end of a fourth capacitor (C4) and a power supply, and the other end of the eighth capacitor (C8), the other end of the seventh capacitor (C7) and the other end of the fourth capacitor (C4) are all grounded; and the end of a bypass capacitor of the power amplifier (U1) is connected with one end of a fifty-third capacitor (C53), and the other end of the fifty-third capacitor (C53) is grounded.
7. The sound control circuit of claim 1, wherein: the input end of a crystal oscillator of the micro-control unit (U3) is connected with one end of a first crystal oscillator (Y1) and one end of a sixth capacitor (C6), the output end of the crystal oscillator of the micro-control unit (U3) is connected with the other end of the first crystal oscillator (Y1) and one end of a ninth capacitor (C9), and the other end of the sixth capacitor (C6) and the other end of the ninth capacitor (C9) are both grounded.
8. The sound control circuit of claim 1, wherein: the reset end of the micro-control unit (U3) is connected with one end of a tenth resistor (R10) and one end of a sixteenth capacitor (C16), the other end of the tenth resistor (R10) is connected with a second low-voltage output end of the power supply circuit, and the other end of the sixteenth capacitor (C16) is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921417311.2U CN210574111U (en) | 2019-08-29 | 2019-08-29 | Sound control circuit for intelligent alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921417311.2U CN210574111U (en) | 2019-08-29 | 2019-08-29 | Sound control circuit for intelligent alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210574111U true CN210574111U (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921417311.2U Active CN210574111U (en) | 2019-08-29 | 2019-08-29 | Sound control circuit for intelligent alarm |
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| Country | Link |
|---|---|
| CN (1) | CN210574111U (en) |
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2019
- 2019-08-29 CN CN201921417311.2U patent/CN210574111U/en active Active
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