CN213754936U - Vehicle-mounted broadband noise prompting device - Google Patents
Vehicle-mounted broadband noise prompting device Download PDFInfo
- Publication number
- CN213754936U CN213754936U CN202022822058.8U CN202022822058U CN213754936U CN 213754936 U CN213754936 U CN 213754936U CN 202022822058 U CN202022822058 U CN 202022822058U CN 213754936 U CN213754936 U CN 213754936U
- Authority
- CN
- China
- Prior art keywords
- capacitor
- resistor
- terminal
- driving chip
- audio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003990 capacitor Substances 0.000 claims description 69
- 230000003321 amplification Effects 0.000 claims description 46
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 46
- 101100141312 Mus musculus Ripk1 gene Proteins 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Landscapes
- Amplifiers (AREA)
Abstract
The utility model relates to a noise suggestion device, especially an on-vehicle broadband noise suggestion device. According to the technical scheme provided by the utility model, on-vehicle broadband noise suggestion device, including microcontroller, volume control device and be used for saving audio information's wide band audio frequency device, volume control device, wide band audio frequency device are connected with microcontroller, microcontroller passes through audio amplifier circuit and is connected with the speaker, and microcontroller can read the interior audio information that stores of wide band audio frequency device to audio information that reads is broadcast through audio amplifier circuit and speaker, and the volume that audio information was broadcast to the speaker sets up volume state with volume control device unanimously. The wide frequency band of the utility model effectively avoids the influence of other sound sources in the same environment; the adjustable volume is suitable for the requirements of different scenes, and is safe and reliable.
Description
Technical Field
The utility model relates to a noise suggestion device, especially an on-vehicle broadband noise suggestion device.
Background
At present, the energy of sound emitted by a common prompt tone device is balanced but the frequency band is single, and the sound is easily influenced by the sound with the same frequency under other sound sources; although the frequency bands of the voice prompt devices are various, the energy is unbalanced, and the ideal effect is difficult to achieve in the environment where the multilingual people coexist due to the limited language.
In practical working environment, if a sound source with the same frequency as the device exists in the sound production range of the single-frequency-band type warning sound device, the warning effect of the warning sound device is influenced to a certain extent in the range, and if the two sound energies are the same but the phases are opposite, the device can even generate a 'silent' phenomenon. The voice type prompting device has a good effect on the same language group in the working process, but is limited to the group with the language barrier, and cannot generate the same effect to a certain extent.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide a vehicle-mounted broadband noise prompting device, the wider frequency band of which effectively avoids the influence of other sound sources in the same environment; the adjustable volume is suitable for the requirements of different scenes, and is safe and reliable.
According to the technical scheme provided by the utility model, on-vehicle broadband noise suggestion device, including microcontroller, volume control device and be used for saving audio information's wide band audio frequency device, volume control device, wide band audio frequency device are connected with microcontroller, microcontroller passes through audio amplifier circuit and is connected with the speaker, and microcontroller can read the interior audio information that stores of wide band audio frequency device to audio information that reads is broadcast through audio amplifier circuit and speaker, and the volume that audio information was broadcast to the speaker sets up volume state with volume control device unanimously.
The volume adjusting device comprises a dial switch.
The loudspeaker also comprises a power supply circuit, and working voltages required by the microcontroller, the volume adjusting device, the broadband audio device, the audio amplifying circuit and the loudspeaker can be provided through the power supply circuit.
The power supply circuit is electrically connected with the anti-surge starting circuit.
The power supply circuit comprises a connection interface J1, wherein a first end of the connection interface J1 is connected with one end of a fuse F1, the other end of the fuse F1 is connected with a first end of a diac D1, one end of a capacitor C1, a first end of a diac D2 and one end of an inductor L1, and the other end of the capacitor C1, a second end of a diac D1 and a second end of the connection interface J1 are all grounded;
the second end of the diac D2 and the other end of the inductor L1 are both connected to the anode end of the diode D3, the cathode end of the diode D3 is connected to one end of the capacitor C2, the cathode end of the zener diode ZD1, one end of the resistor R3 and the source end of the PMOS transistor Q1, the other end of the capacitor C2, the anode end of the zener diode ZD1 are connected to one end of the resistor R1, one end of the resistor R4 and one end of the resistor R5, the other end of the resistor R1 is connected to one end of the resistor R2 and grounded, and the other end of the resistor R2 is connected to PGND; the other end of the resistor R4 is connected with the gate terminal of the PMOS transistor Q1, the other end of the resistor R5 is connected with one end of a capacitor C3, the other end of the capacitor C3 is connected with the drain terminal of the PMOS transistor Q1 and one end of a capacitor C4, the other end of the capacitor C4 is connected with the other end of the resistor R3, and the drain terminal of the PMOS transistor Q1 is connected with the capacitor C4 and the capacitor C3 to obtain a voltage VCC _ SYS.
The audio amplification circuit comprises an amplification driving chip U1, the LINP end and the LINN end of the amplification driving chip U1 are both connected with PGND, the RINP end of the amplification driving chip U1 is connected with one end of a capacitor C6, the other end of the capacitor C6 is connected with one end of a resistor R6, the RINN end of the amplification driving chip U1 is connected with one end of a capacitor C5, and the other end of the capacitor C5 is grounded;
the SD end and the FAULT end of the amplification driving chip U1 are both connected with one end of a resistor R7, the other end of the resistor R7 is connected with a voltage PVCC, the GAIN0 end of the amplification driving chip U1 is connected with one end of a resistor R8, the GAIN1 end of the amplification driving chip U1 is connected with one end of the resistor R9, and the other end of the resistor R8 and the other end of the resistor R9 are both connected with the PBTL end of the driving amplification chip U1 and the voltage PVCC; the PLIMIT end of the amplification driving chip U1 is grounded through a capacitor C9;
the BSPR terminal of the amplification driving chip U1 is connected to one end of a capacitor C8 and the BSNR terminal of the amplification driving chip U1, the OUTPR terminal and the OUTNR terminal of the amplification driving chip U1 are connected to the other end of a capacitor C8, the cathode terminal of a switching diode D4, and one end of an inductor L3, the anode terminal of the switching diode D4 is connected to PGND, the other end of the inductor L3 is connected to one end of a capacitor C11 and the cathode terminal of a speaker, the other end of the capacitor C11 is connected to one end of a capacitor C10 and grounded, the anode terminal of the speaker is connected to the other end of a capacitor C10 and one end of an inductor L2, the other end of an inductor L2 is connected to the cathode terminal of a switching diode D3, the OUTPL terminal and the OUTNL terminal of the amplification driving chip U1 and one end of a capacitor C7, the other end of a capacitor C7 is connected to the BSPL terminal and the BSNL terminal of an amplification driving chip U1, and the anode terminal of a switching diode D3 is connected to PGND.
The utility model has the advantages that: the volume adjusting device and the broadband audio device are connected with the microcontroller, the microcontroller is connected with the loudspeaker through the audio amplifying circuit, the microcontroller can read audio information stored in the broadband audio device and play the read audio information through the audio amplifying circuit and the loudspeaker, the volume of the audio information played by the loudspeaker is consistent with the volume setting state of the volume adjusting device, and the influence of other sound sources in the same environment is effectively avoided due to the wider frequency band; the adjustable volume is suitable for the requirements of different scenes, and is safe and reliable.
Drawings
Fig. 1 is a block diagram of the present invention.
Fig. 2 is a partial schematic diagram of the power supply circuit of the present invention.
Fig. 3 is a schematic diagram of the audio amplifier circuit and the speaker of the present invention.
Description of reference numerals: 1-microcontroller, 2-broadband audio device, 3-dial switch, 4-loudspeaker, 5-audio amplifier circuit, 6-power supply circuit and 7-anti-surge starting circuit.
Detailed Description
The invention is further described with reference to the following specific drawings and examples.
As shown in fig. 1: the influence of other sound sources in the same environment is effectively avoided for a wider frequency band; the adjustable volume is applicable to the needs of different scenes, the utility model discloses a microcontroller 1, volume control device and be used for saving audio information's wide band audio frequency device 2, volume control device, wide band audio frequency device 2 are connected with microcontroller 1, microcontroller 1 passes through audio amplifier circuit 5 and is connected with speaker 4, and microcontroller 1 can read the audio information of the interior storage of wide band audio frequency device 2 to play the audio information who reads through audio amplifier circuit 5 and speaker 4, and the volume that speaker 4 played audio information sets up volume state unanimous with volume control device.
Specifically, the microcontroller 1 may adopt an existing commonly-used microprocessor chip, which may be specifically selected according to actual needs, which is well known to those skilled in the art and will not be described herein again. The volume adjustment means comprises a dial switch 3. Of course, the volume adjustment device may also adopt other commonly used volume adjustment forms, and may be specifically selected according to needs.
The wideband audio apparatus 2 may adopt the existing common storage form, such as a USB memory, and may be specifically selected according to the need, which is not described herein again. The microcontroller 1 can drive the speaker 4 to play audio information through the audio amplifier circuit 5, and the specific manner of controlling the speaker 4 to play audio information is consistent with the prior art, which is well known to those skilled in the art and will not be described herein again.
In operation, the microcontroller 1 reads a waveform file pre-stored in the broadband audio device 2 and plays the waveform file through the speaker 4 via an electrical signal. In-process such as broadcast, can adjust the volume through volume control device to at the during operation, the produced warning sound has the characteristics: wide tones (i.e., frequency) and consistent loudness; the sound waves of each frequency band are randomly and disorderly distributed in each time period, namely, the wider frequency band effectively avoids the influence of other sound sources in the same environment; the adjustable volume is suitable for the requirements of different scenes, and is safe and reliable. The waveform file stored in the wideband audio device 2 can be selected as needed, which is well known in the art and will not be described herein.
Further, the intelligent microphone also comprises a power supply circuit 6, and the power supply circuit 6 can provide the working voltages required by the microcontroller 1, the volume adjusting device, the broadband audio device 2, the audio amplifying circuit 5 and the loudspeaker 4.
The embodiment of the utility model provides an in, power supply circuit 6 can provide the operating voltage of whole device, and concrete form is with the power supply needs that can satisfy whole device as the standard. In addition, the power circuit 6 is electrically connected with the anti-surge starting circuit 7, the instantaneous surge current of the equipment during power-on can be suppressed through the anti-surge starting circuit 7, the anti-surge starting circuit 7 can specifically adopt the existing common form, which is well known to those skilled in the art, and the details are not repeated here.
As shown in fig. 2, the power supply circuit 6 includes a connection interface J1, a first end of the connection interface J1 is connected to one end of a fuse F1, the other end of the fuse F1 is connected to a first end of a diac D1, one end of a capacitor C1, a first end of a diac D2, and one end of an inductor L1, and the other end of the capacitor C1, a second end of the diac D1, and a second end of the connection interface J1 are all grounded;
the second end of the diac D2 and the other end of the inductor L1 are both connected to the anode end of the diode D3, the cathode end of the diode D3 is connected to one end of the capacitor C2, the cathode end of the zener diode ZD1, one end of the resistor R3 and the source end of the PMOS transistor Q1, the other end of the capacitor C2, the anode end of the zener diode ZD1 are connected to one end of the resistor R1, one end of the resistor R4 and one end of the resistor R5, the other end of the resistor R1 is connected to one end of the resistor R2 and grounded, and the other end of the resistor R2 is connected to PGND; the other end of the resistor R4 is connected with the gate terminal of the PMOS transistor Q1, the other end of the resistor R5 is connected with one end of a capacitor C3, the other end of the capacitor C3 is connected with the drain terminal of the PMOS transistor Q1 and one end of a capacitor C4, the other end of the capacitor C4 is connected with the other end of the resistor R3, and the drain terminal of the PMOS transistor Q1 is connected with the capacitor C4 and the capacitor C3 to obtain a voltage VCC _ SYS.
The embodiment of the utility model provides an in, can be connected with external power source through connection interface J1, can obtain required voltage VCC _ SYS through above-mentioned circuit to can satisfy corresponding work needs.
As shown in fig. 3, the audio amplifier circuit 5 includes an amplification driving chip U1, the LINP terminal and the LINN terminal of the amplification driving chip U1 are both connected to PGND, the RINP terminal of the amplification driving chip U1 is connected to one terminal of a capacitor C6, the other terminal of the capacitor C6 is connected to one terminal of a resistor R6, the RINN terminal of the amplification driving chip U1 is connected to one terminal of a capacitor C5, and the other terminal of the capacitor C5 is grounded;
the SD end and the FAULT end of the amplification driving chip U1 are both connected with one end of a resistor R7, the other end of the resistor R7 is connected with a voltage PVCC, the GAIN0 end of the amplification driving chip U1 is connected with one end of a resistor R8, the GAIN1 end of the amplification driving chip U1 is connected with one end of the resistor R9, and the other end of the resistor R8 and the other end of the resistor R9 are both connected with the PBTL end of the driving amplification chip U1 and the voltage PVCC; the PLIMIT end of the amplification driving chip U1 is grounded through a capacitor C9;
the BSPR terminal of the amplification driving chip U1 is connected to one end of a capacitor C8 and the BSNR terminal of the amplification driving chip U1, the OUTPR terminal and the OUTNR terminal of the amplification driving chip U1 are connected to the other end of the capacitor C8, the cathode terminal of a switching diode D4 and one end of an inductor L3, the anode terminal of the switching diode D4 is connected to PGND, the other end of the inductor L3 is connected to one end of a capacitor C11 and the cathode terminal of the speaker 4, the other end of the capacitor C11 is connected to one end of a capacitor C10 and grounded, the anode terminal of the speaker 4 is connected to the other end of the capacitor C10 and one end of an inductor L2, the other end of the inductor L2 is connected to the cathode terminal of a switching diode D3, the pl OUTNL terminal and the terminal of the amplification driving chip U1 and one end of a capacitor C7, the other end of a capacitor C7 is connected to the BSPL terminal and the BSNL terminal of the amplification driving chip U1 and the anode terminal of a switching diode pgd 3 is connected to the BSNR terminal.
The embodiment of the utility model provides an in, enlarge driver chip U1 and can adopt the chip that the model is TPA3110D2, in FIG. 3, SP + is audio signal, and audio signal SP + is connected with resistance R6. PVCC is voltage and PGND is ground.
Claims (6)
1. The utility model provides a vehicle-mounted broadband noise suggestion device which characterized in that: including microcontroller (1), volume control device and be used for saving audio information's wide band audio frequency device (2), volume control device, wide band audio frequency device (2) are connected with microcontroller (1), microcontroller (1) is connected with speaker (4) through audio amplification circuit (5), and microcontroller (1) can read the audio information that stores in wide band audio frequency device (2) to audio information read is broadcast through audio amplification circuit (5) and speaker (4), and the volume that audio information was broadcast to speaker (4) sets up the volume state with volume control device and is unanimous.
2. The vehicle-mounted broadband noise prompting device according to claim 1, characterized in that: the volume adjusting device comprises a dial switch (3).
3. The vehicle-mounted broadband noise prompting device according to claim 1, characterized in that: the loudspeaker is characterized by further comprising a power supply circuit (6), and working voltages required by the microcontroller (1), the volume adjusting device, the broadband audio device (2), the audio amplifying circuit (5) and the loudspeaker (4) can be provided through the power supply circuit (6).
4. The vehicle-mounted broadband noise prompting device according to claim 3, characterized in that: the power supply circuit (6) is electrically connected with the anti-surge starting circuit (7).
5. The vehicle-mounted broadband noise prompting device according to claim 3 or 4, characterized in that: the power supply circuit (6) comprises a connection interface J1, a first end of the connection interface J1 is connected with one end of a fuse F1, the other end of the fuse F1 is connected with a first end of a diac D1, one end of a capacitor C1, a first end of a diac D2 and one end of an inductor L1, and the other end of the capacitor C1, a second end of the diac D1 and a second end of the connection interface J1 are all grounded;
the second end of the diac D2 and the other end of the inductor L1 are both connected to the anode end of the diode D3, the cathode end of the diode D3 is connected to one end of the capacitor C2, the cathode end of the zener diode ZD1, one end of the resistor R3 and the source end of the PMOS transistor Q1, the other end of the capacitor C2, the anode end of the zener diode ZD1 are connected to one end of the resistor R1, one end of the resistor R4 and one end of the resistor R5, the other end of the resistor R1 is connected to one end of the resistor R2 and grounded, and the other end of the resistor R2 is connected to PGND; the other end of the resistor R4 is connected with the gate terminal of the PMOS transistor Q1, the other end of the resistor R5 is connected with one end of a capacitor C3, the other end of the capacitor C3 is connected with the drain terminal of the PMOS transistor Q1 and one end of a capacitor C4, the other end of the capacitor C4 is connected with the other end of the resistor R3, and the drain terminal of the PMOS transistor Q1 is connected with the capacitor C4 and the capacitor C3 to obtain a voltage VCC _ SYS.
6. The vehicle-mounted broadband noise prompting device according to claim 1, characterized in that: the audio amplification circuit (5) comprises an amplification driving chip U1, the LINP end and the LINN end of the amplification driving chip U1 are both connected with PGND, the RINP end of the amplification driving chip U1 is connected with one end of a capacitor C6, the other end of the capacitor C6 is connected with one end of a resistor R6, the RINN end of the amplification driving chip U1 is connected with one end of a capacitor C5, and the other end of the capacitor C5 is grounded;
the SD end and the FAULT end of the amplification driving chip U1 are both connected with one end of a resistor R7, the other end of the resistor R7 is connected with a voltage PVCC, the GAIN0 end of the amplification driving chip U1 is connected with one end of a resistor R8, the GAIN1 end of the amplification driving chip U1 is connected with one end of the resistor R9, and the other end of the resistor R8 and the other end of the resistor R9 are both connected with the PBTL end of the driving amplification chip U1 and the voltage PVCC; the PLIMIT end of the amplification driving chip U1 is grounded through a capacitor C9;
the BSPR terminal of the amplification driving chip U1 is connected to one end of a capacitor C8 and the BSNR terminal of the amplification driving chip U1, the OUTPR terminal and the OUTNR terminal of the amplification driving chip U1 are connected to the other end of a capacitor C8, the cathode terminal of a switching diode D4, and one end of an inductor L3, the anode terminal of the switching diode D4 is connected to PGND, the other end of the inductor L3 is connected to one end of a capacitor C11 and the cathode terminal of a speaker (4), the other end of the capacitor C11 is connected to one end of a capacitor C10 and grounded, the anode terminal of the speaker (4) is connected to the other end of a capacitor C10 and one end of an inductor L2, the other end of an inductor L2 is connected to the cathode terminal of a switching diode D3, the OUTPL terminal and the OUTNL terminal of the amplification driving chip U1, and one end of a capacitor C7, the other end of a capacitor C7 is connected to the BSPL and BSNL terminals of an amplification driving chip U1, and the anode terminal of a switch diode D3 is connected to PGND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022822058.8U CN213754936U (en) | 2020-11-30 | 2020-11-30 | Vehicle-mounted broadband noise prompting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022822058.8U CN213754936U (en) | 2020-11-30 | 2020-11-30 | Vehicle-mounted broadband noise prompting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213754936U true CN213754936U (en) | 2021-07-20 |
Family
ID=76832606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022822058.8U Active CN213754936U (en) | 2020-11-30 | 2020-11-30 | Vehicle-mounted broadband noise prompting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213754936U (en) |
-
2020
- 2020-11-30 CN CN202022822058.8U patent/CN213754936U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8073158B2 (en) | Circuit for eliminating noise | |
| US5922981A (en) | Personal lighting system for drummers | |
| JP5065982B2 (en) | Audio amplifier | |
| CN213754936U (en) | Vehicle-mounted broadband noise prompting device | |
| CN104469605A (en) | Electronic devices with audio control circuits | |
| CN211321491U (en) | Circuit for eliminating power-down noise of audio equipment | |
| US5754095A (en) | Tone generating circuit | |
| CN104244122A (en) | Drive-by-wire headset and volume control circuit thereof | |
| JPH08213849A (en) | Audio mute circuit | |
| JP2007312030A (en) | Headphone detecting circuit | |
| US2468205A (en) | Volume controlled sound reinforcement system | |
| CN101490950A (en) | A method of limiting the maximum permitted sound volume in an earphone, and an earphone for carrying out the method | |
| CN102685636A (en) | Voice-frequency circuit | |
| US20070093221A1 (en) | Audio muting circuit and audio muting method | |
| KR102050032B1 (en) | Protecting circuit of speaker, and crossover electronic network circuit and monitoring method using the same | |
| US20200357380A1 (en) | Electronic effects device and method | |
| CN210781355U (en) | Earphone detection control circuit | |
| CN211406261U (en) | Computer multimedia loudness control circuit | |
| JP4337737B2 (en) | Analog compressor | |
| CN221409087U (en) | Four-section earphone hole control circuit | |
| JPS6375591A (en) | Power control device using a timer for audio equipment | |
| KR100532601B1 (en) | channel down mixing apparatus for car audio system | |
| JP2009141697A (en) | Class D amplifier | |
| JP4862995B2 (en) | Speaker lighting device and speaker system using the same | |
| JPS58206283A (en) | Transient sound erasing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230118 Address after: 213022 No. 199 west the Yellow River Road, Xinbei District, Jiangsu, Changzhou Patentee after: BESTAR HOLDING Co.,Ltd. Address before: A3-301, Changzhou science and Education City, No.18, middle Changwu Road, Wujin District, Changzhou City, Jiangsu Province, 213000 Patentee before: CHANGZHOU BEISU SMART TECH CO.,LTD. |