CN211981866U - 2.4G wireless audio signal receiving and transmitting integrated wireless transmission terminal - Google Patents
2.4G wireless audio signal receiving and transmitting integrated wireless transmission terminal Download PDFInfo
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- CN211981866U CN211981866U CN202020906951.6U CN202020906951U CN211981866U CN 211981866 U CN211981866 U CN 211981866U CN 202020906951 U CN202020906951 U CN 202020906951U CN 211981866 U CN211981866 U CN 211981866U
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Abstract
The utility model discloses a 2.4G wireless audio signal receives and dispatches integrative wireless transmission terminal, including display screen, wireless radio frequency module and receiving and dispatching mode change over switch. The display module, receiving and dispatching mode change-over switch and wireless radio frequency module link to each other, this integrative wireless transmission terminal of 2.4G wireless audio signal receiving and dispatching still includes the power, the power is wireless receiving and dispatching module and display module power supply, this product has integrateed wireless receiving and dispatching function, same equipment controls the receiving of 2.4G wireless half-duplex transmission module and the switching of transmitting mode function through receiving and dispatching mode change-over switch, under the condition that need not upgrade firmware and change hardware, freely realize wireless audio receiving and dispatching and switch over, make the user according to the use scene, receive and dispatch and freely arrange, promoted the use scene convenience, reduce user's purchase cost, the producer stock, management and after-sale problem.
Description
Technical Field
The utility model relates to a wireless transmission technical field specifically is a 2.4G wireless audio signal receives and dispatches integrative wireless transmission terminal.
Background
In recent years, wireless audio transmission technology is gradually popularized in daily life of people, and great convenience is brought to the life of people. Such as tourist guide equipment, wireless audio transceivers, stage monitoring systems, etc., which are used by people, these more commonly used wireless audio transmission systems generally include: the audio acquisition equipment is an audio transmitting terminal; signal receiving equipment, namely an audio receiving end.
At present, in the field of wireless audio transmission, a transmitting end and a receiving end in a common wireless audio transmission system are clearly separated in labor, and the transmitting end is responsible for acquiring audio information, processing the acquired information and transmitting the processed information to the receiving end in a wireless transmission mode. Mainly connected with sound sources, such as a microphone, multimedia playing equipment, a camera and the like; the receiving end is responsible for receiving wireless voice information and converting the wireless voice information into audio output and is mainly connected with equipment such as earphones, active sound boxes and power amplifiers. The audio information is collected by the transmitting terminal, the audio is coded and decoded, the EQ is adjusted, the volume and the gain are controlled, and then the 2.4G wireless digital signals are radiated out through the 2.4G wireless mode. The receiving end is responsible for receiving 2.4G digital wireless audio signals, audio decoding processing and volume, after gain control processing, one path of digital audio signals is sent to an audio coding and decoding chip for processing, one path of digital audio signals is output in a stereo mode, and the other path of digital audio signals is output in a digital audio format. The conversion to audio output is a complete one-way transmission process, which means that the audio communication of the system is simplex from one party to another. The simplex transmission ensures that the division of labor of a transmitting end and a receiving end in a wireless audio transmission system in the current market is clear, the functions of transmitting and receiving equipment are single, and the wireless audio receiving, transmitting and converting of the same equipment and the same program cannot be realized. In addition, in actual use, users may have different requirements for the transmitting and receiving quantities, and the division of labor at the transmitting and receiving ends clearly means that users may not meet the requirements in some use scenarios, for example, the requirements for the transmitting and receiving quantities are different sometimes.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a 2.4G wireless audio signal receives and dispatches integrative wireless transmission terminal to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an integrative wireless transmission terminal of 2.4G wireless audio signal receiving and dispatching, includes display module, wireless radio frequency module and receiving and dispatching mode change over switch, display module and wireless receiving and dispatching module and receiving and dispatching mode change over switch electrical property link to each other, and this integrative wireless transmission terminal of 2.4G wireless audio signal receiving and dispatching still includes the power, the power is microprocessor wireless receiving and dispatching module and display module power supply.
Further, the wireless radio frequency module comprises an MCU, an audio codec, a 2.4G wireless half-duplex chip and a PA wireless radio frequency power amplifier, the 2.4G wireless half-duplex chip is used for receiving and sending 2.4G wireless signals, the PA is used for amplifying and enhancing the 2.4G wireless signals, the audio codec is used for converting the analog to digital or digital to analog of the audio signals, EQ adjustment and volume control, the MCU can transfer the transmission signals of the 2.4G wireless half-duplex chip and the audio codec, and meanwhile, the state of the 2.4G chip, the state of the power supply and the volume of equipment are gathered and fed back to the display device for presentation.
Furthermore, the receiving and sending mode switch is electrically connected with the microprocessor on the wireless radio frequency module, and the receiving and sending states of the wireless radio frequency module are switched through the receiving and sending mode switch.
Furthermore, the MCU is electrically connected with the 2.4G wireless half-duplex chip through the SPI bus.
Furthermore, the display module comprises a display screen and a display driver, the display driver is used for driving the display screen to be lightened and displayed, and the display screen is used for displaying the power supply electric quantity, the equipment volume and the receiving and sending states of the equipment.
Furthermore, the MCU and the audio codec are electrically connected through I2S and I2C buses, I2S is used for transmitting audio signals between the MCU and the audio codec module, and I2C is used for directly transmitting control signals between the MCU and the audio codec module.
Compared with the prior art, the beneficial effects of the utility model are as follows:
A2.4G wireless audio signal receiving and dispatching integrative wireless transmission terminal accomplishes in the wireless audio transmission system a tractor serves several purposes, an equipment can do the transmission, can do the receipt again, this product has integrated wireless receiving and dispatching function, same equipment controls the receiving of 2.4G wireless half-duplex transmission module and the switching of transmission mode function through receiving and dispatching mode change switch, under the condition that need not upgrade firmware and change hardware, freely realize wireless audio receiving and dispatching and switch, make the user according to the use scene, receive and dispatch freely and arrange, can one-shot to one-shot, one-shot to many-shot, use scene convenience has been promoted, reduce user purchase cost, the manufacturer stock, management and after-sale problem.
Drawings
Fig. 1 is a schematic diagram of the system structure of the present invention;
fig. 2 is a schematic diagram of the circuit connection of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1: the utility model provides an integrative wireless transmission terminal of 2.4G wireless audio signal receiving and dispatching, includes, display screen, wireless radio frequency module and receiving and dispatching mode change over switch, and display module and wireless radio frequency module and receiving and dispatching mode change over switch electrical property link to each other, and this integrative wireless transmission terminal of 2.4G wireless audio signal receiving and dispatching still includes the power, and the power is wireless receiving and dispatching module and display module power supply.
The wireless radio frequency module comprises a 2.4G wireless half-duplex chip and a PA wireless power amplifier, the 2.4G wireless half-duplex chip is used for receiving and sending 2.4G wireless signals, the PA wireless power amplifier is used for amplifying and enhancing the 2.4G wireless signals, the audio codec is used for converting the analog to digital or digital to analog of the audio signals, and EQ adjustment and volume control are performed, the MCU can transfer the transmission signals of the 2.4G wireless half-duplex chip and the audio codec and simultaneously summarize the state of the 2.4G chip, the power supply state and the equipment volume and feed back the summarized signals to the display device for presentation, the MCU is electrically connected with the 2.4G wireless half-duplex chip through an SPI bus, the display module comprises a display screen and a display driver, the display driver is used for driving the lightening and display of the display screen, the display screen is used for displaying the power supply electric quantity, the equipment volume and the receiving and sending states of the equipment, the MCU is electrically connected with the audio codec through I2 85, I2S is used for transmitting audio signals between the MCU and the audio codec, and I2C is used for directly transmitting control signals between the MCU and the audio coder.
In use, the device includes two modes, referring to fig. 2, when in the transmitting mode, the audio signal is accessed by the audio codec, processed by the audio codec and then sent to the MCU through the I2S bus, simultaneously, the receiving and transmitting switch SW1 is pressed to make the MCU on the radio frequency module detect low level, the jitter elimination program starts processing, the SW1 signal is detected again, if the signal is still low level, the soft reset is executed forcibly, storing part of the data in the flash of the MCU before resetting, and then switching the initialization of the parameters of the transmission mode, the MCU and the audio codec are reconfigured to work in a transmitting state, audio data are collected and are transmitted to the 2.4G wireless half-duplex chip in an SPI bus mode after being coded by the MCU, and the signals are transmitted out through the antenna after being amplified by the 2.4G PA wireless power amplifier, so that the signals are transmitted.
In the receiving mode, the receiving and sending switch SW1 is pressed down to enable the MCU on the radio frequency module to detect a high level, the SW1 signal is re-detected after jitter elimination, if the high level is detected, the memory resource occupied by the system at the moment is cleared, the initialization parameters are re-configured according to the receiving mode, the MCU, the audio codec and other peripheral equipment are re-configured, and the MCU, the audio codec and other peripheral equipment can work normally in the receiving state. The 2.4G antenna receives a radio frequency signal sent by the sending end, the radio frequency signal is sent to the 2.4G wireless half-duplex chip after being subjected to sensitivity amplification of a received signal through the 2.4G PA wireless power amplifier, the 2.4G wireless half-duplex chip is sent to the MCU in an SPI bus mode for RSS decoding, and the MCU is sent to the audio codec in an I2S bus mode for digital audio decoding. And the MCU can transmit corresponding control signals through an I2C bus, for example, the signals for adjusting the gain are used for controlling the output volume of the equipment, and the like, the audio coding and decoding module carries out coding and decoding, digital-to-analog conversion and gain adjustment after receiving the digital signals and then outputs the signals through an audio output port, thereby realizing the reception of 2.4G wireless signals.
When equipment works, the power module supplies power to the display driver and the wireless radio frequency module, the MCU on the wireless radio frequency module can record and send basic information of the equipment to the display module, wherein the basic information comprises the volume, the electric quantity, the receiving and sending states and the like of the equipment, the display driver is arranged in the display module and used for controlling the lighting of the display screen, decoding and converting signals of the MCU and controlling the display screen to display corresponding information.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a integrative wireless transmission terminal of 2.4G wireless audio signal receiving and dispatching which characterized in that: the 2.4G wireless audio signal transmitting and receiving integrated wireless transmission terminal further comprises a power supply, and the power supply supplies power to the wireless transmitting and receiving module and the display module.
2. The wireless transmission terminal for receiving and transmitting 2.4G wireless audio signals according to claim 1, wherein: the wireless radio frequency module comprises an MCU, an audio codec, a 2.4G wireless half-duplex chip and a PA wireless radio frequency power amplifier.
3. The wireless transmission terminal for receiving and transmitting 2.4G wireless audio signals according to claim 2, wherein: the receiving and transmitting mode switch is electrically connected with the MCU on the wireless radio frequency module.
4. The wireless transmission terminal for receiving and transmitting 2.4G wireless audio signals according to claim 2, wherein: the MCU on the wireless radio frequency module is electrically connected with the 2.4G wireless half-duplex chip through the SPI bus.
5. The wireless transmission terminal for receiving and transmitting 2.4G wireless audio signals according to claim 1, wherein: the display module comprises a display screen and a display driver, and the display driver is used for driving the display screen to light and display.
6. The wireless transmission terminal for receiving and transmitting 2.4G wireless audio signals according to claim 2, wherein: the MCU on the wireless radio frequency module is electrically connected with the audio codec through I2S and I2C buses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020906951.6U CN211981866U (en) | 2020-05-26 | 2020-05-26 | 2.4G wireless audio signal receiving and transmitting integrated wireless transmission terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020906951.6U CN211981866U (en) | 2020-05-26 | 2020-05-26 | 2.4G wireless audio signal receiving and transmitting integrated wireless transmission terminal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112863157A (en) * | 2020-12-25 | 2021-05-28 | 唐山威程科技有限公司 | Cabin type wireless remote control system of carry scraper |
| CN115276707A (en) * | 2022-07-27 | 2022-11-01 | 深圳市中诺无线科技有限公司 | 2.4G wireless digital audio transmission circuit |
| CN116436490A (en) * | 2023-06-12 | 2023-07-14 | 大尧信息科技(湖南)有限公司 | Single-channel half-duplex soft non-equipment rapid receiving and transmitting method, medium, equipment and system |
-
2020
- 2020-05-26 CN CN202020906951.6U patent/CN211981866U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112863157A (en) * | 2020-12-25 | 2021-05-28 | 唐山威程科技有限公司 | Cabin type wireless remote control system of carry scraper |
| CN115276707A (en) * | 2022-07-27 | 2022-11-01 | 深圳市中诺无线科技有限公司 | 2.4G wireless digital audio transmission circuit |
| CN115276707B (en) * | 2022-07-27 | 2023-11-24 | 深圳市中诺无线科技有限公司 | 2.4G wireless digital audio transmission circuit |
| CN116436490A (en) * | 2023-06-12 | 2023-07-14 | 大尧信息科技(湖南)有限公司 | Single-channel half-duplex soft non-equipment rapid receiving and transmitting method, medium, equipment and system |
| CN116436490B (en) * | 2023-06-12 | 2023-08-15 | 大尧信息科技(湖南)有限公司 | Single-channel half-duplex soft non-equipment rapid receiving and transmitting method, medium, equipment and system |
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