CN213521874U - Remote digital audio interphone - Google Patents
Remote digital audio interphone Download PDFInfo
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- CN213521874U CN213521874U CN202023087661.2U CN202023087661U CN213521874U CN 213521874 U CN213521874 U CN 213521874U CN 202023087661 U CN202023087661 U CN 202023087661U CN 213521874 U CN213521874 U CN 213521874U
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Abstract
The utility model discloses a remote digital audio intercom, including master control MCU, with master control MCU electric connection's talkback module and radio module, with talkback module electric connection's microphone, Lora emission module and earphone to and be used for the power module for the intercom power supply. The utility model discloses be equipped with the Lora emission module, can realize the remote transmission of signal, and signal transmission is stable, simultaneously, still be equipped with the radio module, can receive local frequency modulation broadcasting, improve user experience degree, in addition, this intercom still is equipped with voice control module, can work through voice control intercom, convenient operation, and still be equipped with display module, can show intercom current operating condition information, the user of being convenient for looks over.
Description
Technical Field
The utility model relates to an intercom technical field especially relates to a remote digital audio intercom.
Background
The interphone can provide one-to-one multi-communication service without any network support as a two-way mobile communication tool, and is further widely applied to the industries of railways, buildings, public security, civil aviation, tourism, hotels, services and the like so as to be used for contact and command scheduling among collective members, and can improve the communication efficiency and the rapid response capability of handling emergency events. However, the existing interphone has short signal transmission distance, unstable signal transmission and poor use experience, and meanwhile, the interphone has single function, can only realize the talkback function and does not support the voice control function, so that the operation control of the interphone is very inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a remote digital audio intercom, this intercom is equipped with Lora emission module, can realize the remote transmission of signal, and signal transmission is stable, simultaneously, still be equipped with the radio module, can receive local frequency modulation broadcasting, improve user experience degree, in addition, this intercom still is equipped with voice control module, can work through the speech control intercom, convenient operation, and still be equipped with display module, can show intercom current operating condition information, the user of being convenient for looks over.
In order to realize the purpose, the following technical scheme is adopted:
a remote digital audio interphone comprises a main control MCU, an intercom module and a radio module which are electrically connected with the main control MCU, a microphone, a Lora transmitting module and an earphone which are electrically connected with the intercom module, and a power supply module which is used for supplying power to the interphone; the microphone is used for receiving audio signals and transmitting the audio signals to the talkback module, and the talkback module is used for coding and compressing the received audio signals and transmitting the audio signals to the outside through the Lora transmitting module; the talkback module is also used for receiving the digital signal transmitted from the outside, decoding the digital signal to generate an audio signal and transmitting the audio signal to the earphone.
Furthermore, the talkback module comprises an audio processing unit and an antenna unit electrically connected with the audio processing unit.
Furthermore, the remote digital audio interphone further comprises a voice control module electrically connected with the main control MCU.
Furthermore, the remote digital audio interphone further comprises a functional key module electrically connected with the main control MCU.
Furthermore, the remote digital audio interphone further comprises a display module electrically connected with the main control MCU.
Furthermore, the model of the chip adopted by the master control MCU is MM32F031F4, and the master control MCU is connected with the radio module through PD0 and PD1 pins.
Furthermore, the model of the chip adopted by the audio processing unit is AP280-78TR4, and the audio processing unit is connected with the earphone through a LINEOUT pin.
Adopt above-mentioned scheme, the beneficial effects of the utility model are that:
this intercom is equipped with the Lora emission module, can realize the remote transmission of signal, and signal transmission is stable, simultaneously, still is equipped with the radio module, can receive local frequency modulation broadcasting, improves user experience degree, and in addition, this intercom still is equipped with the speech control module, can be through speech control intercom work, convenient operation, and still be equipped with display module, can show the current operating condition information of intercom, and the user of being convenient for looks over.
Drawings
FIG. 1 is a schematic block diagram of the present invention;
FIG. 2 is a circuit diagram of the main control MCU and the radio module of the present invention;
fig. 3 is a circuit diagram of the audio processing unit and the earphone of the present invention;
fig. 4 is a circuit diagram of the power module of the present invention;
wherein the figures identify the description:
1-main control MCU; 2-a talkback module;
3-a radio module; 4-a microphone;
5-Lora transmitting module; 6, an earphone;
7, a power supply module; 8, a voice control module;
9-function key module; 10-a display module;
21-an audio processing unit; 22-antenna element.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 4, the utility model provides a remote digital audio interphone, which comprises a main control MCU1, an intercom module 2 and a radio module 3 electrically connected with a main control MCU1, a microphone 4 electrically connected with the intercom module 2, a Lora transmitting module 5 and an earphone 6, and a power module 7 for supplying power to the interphone; the microphone 4 is used for receiving audio signals and transmitting the audio signals to the talkback module 2, and the talkback module 2 is used for coding and compressing the received audio signals and transmitting the audio signals to the outside through the Lora transmitting module 5; the talkback module 2 is also used for receiving digital signals transmitted from the outside, decoding the digital signals to generate audio signals and transmitting the audio signals to the earphone 6.
The intercom module 2 comprises an audio processing unit 21 and an antenna unit 22 electrically connected with the audio processing unit 21; the remote digital audio interphone also comprises a voice control module 8 electrically connected with the master control MCU 1; the remote digital audio interphone also comprises a functional key module 9 electrically connected with the master control MCU 1; the remote digital audio interphone also comprises a display module 10 electrically connected with the main control MCU 1; the model of the chip adopted by the master control MCU1 is MM32F031F4, and the master control MCU1 is connected with the radio module 3 through PD0 and PD1 pins; the audio processing unit 21 adopts a chip model of AP280-78TR4, and the audio processing unit 21 is connected with the earphone 6 through a LINEOUT pin.
The utility model discloses the theory of operation:
with continued reference to fig. 1 to 4, the main control MCU1 of the intercom has a chip model of MM32F031F4, the main control MCU1 is connected to the radio module 3 through PD0 and PD1 pins, the audio processing unit 21 has a chip model of AP280-78TR4, and the audio processing unit 21 is connected to the earphone 6 through the LINEOUT pin.
And (4) microphone: the microphone 4 is used for receiving the audio signal and transmitting the audio signal to the talkback module 2.
The talkback module 2: the talkback module 2 comprises an audio processing unit 21 and an antenna unit 22 electrically connected with the audio processing unit 21, in a transmitting mode, the audio processing unit 21 of the talkback module 2 receives an audio signal transmitted by the microphone 4, digitally encodes the audio signal, generates a compressed audio data packet, and transmits the data packet through the Lora transmitting module 5 (the Lora transmitting module 5 has long signal transmission distance and stable signal transmission), wherein the carrier frequency is 433 Mhz; in the receiving mode, the audio processing unit 21 decodes the digital signal received by the antenna unit 22, generates an audio signal, and outputs the audio signal to the headphones 6.
Master MCU 1: the main control MCU1 mainly controls the operation of the intercom module 2 or the radio module 3 by receiving the control signal inputted by the voice control module 8 or the function key module 9, wherein the signal inputted by the function key module 9 is controlled by a serial port or an IO port, and the voice control module 8 converts the control command sent by the user into a serial level signal and outputs the serial level signal to the main control MCU1, and then converts the serial level signal into a corresponding control signal by format conversion to control the operation of the intercom module 2 or the radio module 3.
The voice control module 8: the voice control module 8 mainly converts the instruction of the user into a standard digital signal, converts the standard digital signal into an identifiable instruction through the main control MCU1, and further controls the operation of the talkback module 2 or the radio module 3, and in addition, the voice control module can give out a corresponding voice output to the earphone 6 while giving out an instruction, so that the user can know the current working state of the whole machine.
The display module 10: the method is used for displaying the current working state information of the interphone, and is convenient for a user to check.
A radio module 3: the radio module 3 can receive local frequency modulation broadcast, and user experience is improved.
The power supply module 7: the power module 7 comprises a battery and a charging chip, and can provide two paths of power supplies for the interphone, wherein one path is to convert the battery voltage into 5V for supplying power to the interphone module 2, the other path is to convert the battery voltage into 3.3V for supplying power to the main control MCU1 and the radio module 3, and when the electric quantity of the battery is insufficient, the battery can be charged by the charging chip.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A remote digital audio interphone is characterized by comprising a main control MCU, an intercom module and a radio module which are electrically connected with the main control MCU, a microphone, a Lora transmitting module and an earphone which are electrically connected with the intercom module, and a power supply module which is used for supplying power to the interphone; the microphone is used for receiving audio signals and transmitting the audio signals to the talkback module, and the talkback module is used for coding and compressing the received audio signals and transmitting the audio signals to the outside through the Lora transmitting module; the talkback module is also used for receiving the digital signal transmitted from the outside, decoding the digital signal to generate an audio signal and transmitting the audio signal to the earphone.
2. The remote digital audio interphone of claim 1, wherein the interphone module comprises an audio processing unit and an antenna unit electrically connected to the audio processing unit.
3. The remote digital audio interphone according to claim 1, further comprising a voice control module electrically connected to the main control MCU.
4. The remote digital audio interphone according to claim 1, further comprising a function key module electrically connected to the main control MCU.
5. The remote digital audio interphone of claim 1, further comprising a display module electrically connected to the MCU.
6. The remote digital audio interphone of claim 1, wherein the master MCU is MM32F031F4 in chip type and is connected to the radio module via PD0 and PD1 pins.
7. The remote digital audio interphone of claim 2, wherein the audio processing unit is of the chip type AP280-78TR4, and the audio processing unit is connected to the earphone via a LINEOUT pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023087661.2U CN213521874U (en) | 2020-12-18 | 2020-12-18 | Remote digital audio interphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023087661.2U CN213521874U (en) | 2020-12-18 | 2020-12-18 | Remote digital audio interphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213521874U true CN213521874U (en) | 2021-06-22 |
Family
ID=76428290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023087661.2U Active CN213521874U (en) | 2020-12-18 | 2020-12-18 | Remote digital audio interphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213521874U (en) |
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2020
- 2020-12-18 CN CN202023087661.2U patent/CN213521874U/en active Active
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