CN210693913U - A wireless voice transmission device - Google Patents

Abstract

The utility model provides a wireless voice transmission device, comprising: a host and a plurality of slaves; the host and the slaves both include a voice processing module and a wireless transmission module; the host further includes a first controller, a display module and a second a power supply module; the slave machine further includes a second controller and a second power supply module; the wireless transmission module realizes voice transmission between the host machine and a plurality of the slave machines. The host of the utility model is equipped with a touch screen, preset with 12 communication channels, each communication channel can carry up to 80 slaves, and the slaves are all displayed on the touch screen, which can be displayed on the touch screen. Play or playback call information; the device also has a power detection function to remind users to charge in time.

Description

A wireless voice transmission device

technical field

The utility model relates to a wireless voice transmission of wireless communication, in particular to a 433M wireless transmission technology.

Background technique

In terms of portable and mobile wireless voice transmission, most of the wireless calling devices currently on the market for voice transmission can only implement a single sending and receiving command, and cannot play back the content of the call. In addition, the power supply of the portable wireless calling device is generally provided by a rechargeable battery, the standby time is short, and there is no power reminder function.

Therefore, it is an urgent problem to design a wireless voice transmission device that can play back the content of the call and has the function of power reminder.

SUMMARY OF THE INVENTION

In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a wireless voice transmission device for solving the problems in the prior art that the function is single, cannot realize voice playback, and has no power reminder.

In order to achieve the above purpose and other related purposes, the present invention provides a wireless voice transmission device, comprising: a host and a plurality of slaves;

The host and the slave both include a voice processing module and a wireless transmission module;

The host further includes a first controller, a display module, an audio codec and a first power supply module;

The slave further includes a second controller and a second power module;

The first power supply module provides a working voltage for the host, and the second power supply module provides a working voltage for the slave; both the first power supply module and the second power supply module include a power detection unit;

The voice processing module includes a voice acquisition unit and a voice playback unit;

The input terminal of the voice acquisition unit of the host is connected to an external voice signal, and the output terminal is connected to the audio codec, and the audio codec is also connected to the first controller; the first controller is also connected to the The voice playback unit of the host, the display module and the wireless transmission module of the host are connected;

The input terminal of the voice acquisition unit of the slave is connected to an external voice signal, and the output terminal is connected to the second controller; the second controller is also connected to the voice playback unit of the slave and the wireless transmission of the slave module connection;

Voice transmission is implemented between the host and a plurality of the slaves through the wireless transmission module.

In an embodiment of the present invention, the first power module is powered by a rechargeable lithium battery and/or an external power source, and the second power module is powered by a rechargeable lithium battery.

In an embodiment of the present invention, both the first power module and the second power module include a power detection unit;

The electric quantity detection unit includes a resistor R1, a resistor R2 and a capacitor C1;

One end of the resistor R1 is connected to the output end of the rechargeable lithium battery, and the other end of the resistor R1, one end of the resistor R2 and one end of the capacitor C1 are connected to the input end of the first controller or the second controller; The other ends of the resistor R2 and the capacitor C1 are both grounded.

In an embodiment of the present invention, the first power supply module further includes a step-down unit, and the step-down unit includes a step-down chip U2, a fuse F1 and a plurality of capacitors; one end of the fuse F1 is connected to an external power supply, and the other end is connected to an external power supply. Connect one end of the capacitor C2 and the input end of the step-down chip U2, and the other end of the capacitor C2 is grounded; the output end of the step-down chip U2 is connected to one end of the capacitor C3 and one end of the capacitor C4, and the other ends of the capacitor C3 and the capacitor C4 are both grounded; The power supply V1 output by the step-down chip U2 is also used as the output terminal of the first power supply module.

In an embodiment of the present invention, the display module is a touch display screen.

In an embodiment of the present invention, the voice acquisition unit includes a microphone, an amplifier U3, a plurality of resistors and a plurality of capacitors;

The two ends of the microphone are respectively connected to one end of the resistor R5 and one end of the resistor R6, the other end of the resistor R5 is connected to the power supply V1, the other end of the resistor R6 is connected to one end of the capacitor C6, and the other end of the capacitor C6 is grounded; Capacitor C7 is connected, one end of capacitor C7 is connected to one end of capacitor C8, the other end of capacitor C7 is connected to one end of capacitor C9, the other end of capacitor C8 and the other end of capacitor C9 are connected to capacitor C10; one end of capacitor C10 is connected to resistor R7 one end of the resistor R7, the other end of the resistor R7 is connected to the inverting input of the amplifier U3; the other end of the capacitor C10 is connected to one end of the resistor R8, one end of the resistor R9 and the non-inverting input of the amplifier U3, the other end of the resistor R8 is connected to the power supply V1, and the resistor The other end of R9 is grounded; a resistor R10 is also connected between the inverting input end and the output end of the amplifier U3; the output end of the amplifier U3 is connected to the other end of the capacitor C11, and the other end of the capacitor C1 is used as the output end of the voice acquisition unit Connect to the subsequent circuit.

In an embodiment of the present invention, the voice playback unit includes a voice amplifier U4 and a speaker; the input terminal of the voice amplifier U4 is connected to the output terminal of the first controller or the second controller, and the voice amplifier U4 The output end of the speech amplifier is connected to the speaker.

In an embodiment of the present invention, the wireless transmission module is a 433 wireless transmission module, the wireless transmission module of the host is provided with a 433 antenna outside, and the wireless transmission module of the slave is provided with an FPC433 antenna.

As mentioned above, the wireless voice transmission device of the present invention adopts 433MHz wireless technology, the wireless signal has strong penetrability and long transmission distance, and realizes the wireless transmission of voice signals between the host and a plurality of slaves;

The host is equipped with a touch screen, preset with 12 communication channels, each communication channel can carry up to 80 slaves, and the slaves are displayed on the touch screen, which can be played or played on the touch screen. playback call information;

The host and slave of the device also have a power detection function to remind the user to charge in time.

Description of drawings

Figure 1 shows a schematic structural diagram of the present invention.

FIG. 2 is a schematic diagram showing the wiring of the electric quantity detection unit of the present invention.

FIG. 3 is a schematic diagram showing the wiring of the step-down unit of the present invention.

FIG. 4 is a schematic diagram showing the wiring of the voice collecting unit of the present invention.

FIG. 5 is a schematic diagram showing the wiring of the voice playback unit of the present invention.

Detailed ways

The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other under the condition of no conflict.

It should be noted that the drawings provided in the following embodiments are only to illustrate the basic concept of the present invention in a schematic way, and only the components related to the present invention are shown in the drawings instead of the number of components in the actual implementation, In the drawing of shape and size, the type, quantity and proportion of each component can be arbitrarily changed in actual implementation, and the component layout may also be more complicated.

Please refer to FIG. 1 and FIG. 2 , the present invention provides a wireless voice transmission device, comprising: a host and a plurality of slaves;

The host and the slave both include a voice processing module and a wireless transmission module;

The host further includes a first controller, a display module, an audio codec and a first power supply module;

The host is also provided with a power switch;

The host is also provided with a USB interface, and the user can update and maintain the host through the USB interface.

The slave further includes a second controller and a second power module;

The slave machine is also provided with a power switch, a pairing button, a call button and a two-color LED light, and the two-color LED light is a red light and a green light.

In this embodiment, both the first controller and the second controller select STM32103R8T6 of STMicroelectronics as the controller.

The display module is a touch screen, which is used for displaying and operating the overall function of the host.

The first power module is powered by a rechargeable lithium battery and/or an external power supply;

The second power module is powered by a rechargeable lithium battery, and when the slave is in a normal state, the green light of the two-color LED light is on.

Please refer to FIG. 3 , both the first power supply module and the second power supply module include a power detection unit; the voltage provided by the rechargeable lithium battery is connected to the input terminal of the power detection unit, and the output terminal of the power detection unit Connect to the analog-to-digital conversion port of the first controller or the second controller. When the voltage provided by the rechargeable lithium battery is lower than a certain value, the first controller passes the display module, the second controller Alarm through the red light of the two-color LED light to remind the user to charge.

Referring to FIG. 4 , the first power supply module further includes a step-down unit, the input end of the step-down unit is connected to an external power source, and the voltage V1 is output after being stepped down by the step-down chip U2.

The voice processing module includes a voice acquisition unit and a voice playback unit;

Referring to FIG. 5 , the voice signal is connected to the input end of the voice acquisition unit through the microphone, and after being amplified, it is output to the subsequent circuit to realize the conversion of the analog signal to the digital signal.

The output end of the voice acquisition unit of the host is provided with an audio codec, the model of the audio codec in this embodiment is TLV320AIC23B, and the output end of the voice acquisition unit of the host is connected to the input of the audio codec terminal, the output terminal of the audio codec is connected to the input terminal of the first controller. The audio codec is a high-performance stereo audio Codec chip launched by TI, with a built-in headphone output amplifier, supports two input modes of MIC and LINE IN, and has programmable gain adjustment for both input and output. The internal high integration of analog-to-digital conversion and digital-to-analog conversion, mainly to complete the A/D conversion of the input voice signal and the D/A conversion of the output voice signal, is a very ideal audio analog I/O device.

The output terminal of the voice acquisition unit of the slave is connected to the analog-to-digital conversion port of the second controller.

The voice playback unit includes a voice amplifier U4 and a speaker, and the model of the voice amplifier U4 in this embodiment is 8002B. The input end of the voice amplifier U4 is connected to the output end of the first controller or the second controller, and the output end of the voice amplifier U4 is connected to the speaker.

The wireless transmission module is a 433 wireless transmission module, the wireless transmission module of the host is provided with a 433 antenna, and the wireless transmission module of the slave is provided with an FPC433 antenna. The wireless transmission module checks and verifies the data after receiving the data packet, forwards the received data after the verification is correct, and automatically enters the receiving state to wait for the next data packet to complete the wireless transmission of the voice signal.

The first controller sends the voice signal collected by the host's microphone to the slave's wireless transmission module via the host's wireless transmission module; the slave's wireless transmission module then outputs the voice signal to the second controller , the second controller plays the voice signal through the voice playing unit.

Similarly, the second controller sends the voice signal collected by the microphone of the slave to the wireless transmission module of the host via the wireless transmission module of the slave; the wireless transmission module of the host then outputs the voice signal to the first a controller, the first controller plays the voice signal through the voice playing unit.

The host in this embodiment is preset with 12 communication channels, and the communication channels do not interfere with each other and can be used at the same time; the user can adjust the communication channels by touching the display screen. Each channel can carry up to 80 slaves, and the 80 slaves under the same channel are displayed on the touch screen of the paired host, and the call information to be played or played back can be clicked on the touch screen.

In actual use, turn on the power switches on the master and slave. After the master is powered on, it enters the configuration mode and automatically searches whether the current channel is available. If it is not available, the system will prompt "The current channel is occupied, please select another available channel." At this time The current channel can be adjusted by touching the display until the channel is available.

Press and hold the pairing button on the slave to make the slave enter the configuration mode. At this time, the touch screen of the master will display the currently connected slave device. The user can name the slave as needed. After naming, press the The configuration button is pressed to complete the handshake pairing between the host and the slave. After the pairing is successful, the pager can be used normally.

Press and hold the call button on the slave to speak to it. After letting go, the recorded voice can be sent out through the wireless transmission module. When the master receives it, it will display which slave is currently configured through the touch screen, and play The window automatically plays the voice message. The host can also send a voice to itself, and click to play on the touch screen.

To sum up, the utility model adopts 433MHz wireless technology, the wireless signal has strong penetrability and long transmission distance, and realizes the wireless transmission of voice signals between the host and multiple slaves; the host is equipped with a touch screen, pre- There are 12 communication channels, each communication channel can carry up to 80 slaves, and the slaves are displayed on the touch screen, and the call information can be played or played back on the touch screen; the host of the device and the slaves. The machine also has a power detection function to remind users to charge in time. Therefore, the utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

The above-mentioned embodiments merely illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims (8)

1. A wireless voice transmission device, comprising: a host and a plurality of slaves; The host and the slave both include a voice processing module and a wireless transmission module; The host further includes a first controller, a display module, an audio codec and a first power supply module; The slave further includes a second controller and a second power module; The first power supply module provides a working voltage for the host, and the second power supply module provides a working voltage for the slave; both the first power supply module and the second power supply module include a power detection unit; The voice processing module includes a voice acquisition unit and a voice playback unit; The input terminal of the voice acquisition unit of the host is connected to an external voice signal, and the output terminal is connected to the audio codec, and the audio codec is also connected to the first controller; the first controller is also connected to the The voice playback unit of the host, the display module and the wireless transmission module of the host are connected; The input terminal of the voice acquisition unit of the slave is connected to an external voice signal, and the output terminal is connected to the second controller; the second controller is also connected to the voice playback unit of the slave and the wireless transmission of the slave module connection; Voice transmission is implemented between the host and a plurality of the slaves through the wireless transmission module. 2 . The wireless voice transmission device according to claim 1 , wherein the first power module is powered by a rechargeable lithium battery and/or an external power source, and the second power module is powered by a rechargeable lithium battery. 3 . 3. The wireless voice transmission device according to claim 2, wherein the electric quantity detection unit comprises a resistor R1, a resistor R2 and a capacitor C1; One end of the resistor R1 is connected to the output end of the rechargeable lithium battery, and the other end of the resistor R1, one end of the resistor R2 and one end of the capacitor C1 are connected to the input end of the first controller or the second controller; The other ends of the resistor R2 and the capacitor C1 are both grounded. 4. The wireless voice transmission device according to claim 3, wherein the first power supply module further comprises a step-down unit, and the step-down unit comprises a step-down chip U2, a fuse F1 and a plurality of capacitors; the fuse F1 One end is connected to the external power supply, the other end is connected to one end of the capacitor C2 and the input end of the step-down chip U2, the other end of the capacitor C2 is grounded; the output end of the step-down chip U2 is connected to one end of the capacitor C3 and one end of the capacitor C4, the capacitor C3 and The other end of the capacitor C4 is grounded; the power supply V1 output by the step-down chip U2 is also used as the output end of the first power supply module. 5 . The wireless voice transmission device according to claim 1 , wherein the display module is a touch screen. 6 . 6. The wireless voice transmission device according to claim 1, wherein the voice acquisition unit comprises a microphone, an amplifier U3, a plurality of resistors and a plurality of capacitors; The two ends of the microphone are respectively connected to one end of the resistor R5 and one end of the resistor R6, the other end of the resistor R5 is connected to the power supply V1, the other end of the resistor R6 is connected to one end of the capacitor C6, and the other end of the capacitor C6 is grounded; Capacitor C7 is connected, one end of capacitor C7 is connected to one end of capacitor C8, the other end of capacitor C7 is connected to one end of capacitor C9, the other end of capacitor C8 and the other end of capacitor C9 are connected to capacitor C10; one end of capacitor C10 is connected to resistor R7 one end of the resistor R7, the other end of the resistor R7 is connected to the inverting input of the amplifier U3; the other end of the capacitor C10 is connected to one end of the resistor R8, one end of the resistor R9 and the non-inverting input of the amplifier U3, the other end of the resistor R8 is connected to the power supply V1, and the resistor The other end of R9 is grounded; a resistor R10 is also connected between the inverting input end and the output end of the amplifier U3; the output end of the amplifier U3 is connected to the other end of the capacitor C11, and the other end of the capacitor C1 is used as the output end of the voice acquisition unit Connect to the subsequent circuit. 7. The wireless voice transmission device according to claim 1, wherein the voice playback unit comprises a voice amplifier U4 and a speaker; the input terminal of the voice amplifier U4 is connected to the first controller or the second The output end of the controller, the output end of the voice amplifier is connected to the speaker. 8 . The wireless voice transmission device according to claim 1 , wherein the wireless transmission module is a 433 wireless transmission module, the wireless transmission module of the host is provided with a 433 antenna, and the wireless transmission module of the slave is provided with a 433 antenna. 9 . There is an FPC433 antenna inside.

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