Intelligent wireless audio and video transceiver

Abstract

The utility model discloses an intelligent wireless audio and video transceiver, which adopts a shell with the same structure and size, a transmitting device and a receiving device can share the same face shell, an external antenna adopts a buckle structure to be fixedly connected with an antenna mounting hole arranged on the shell and rotate relatively, and a battery is adopted to supply power. A wireless communication module is arranged on the functional mainboard and connected with the external antenna through a radio frequency coaxial cable or a PCB antenna connector, the technical problems that in the prior art, cables are complicated, operation is tedious, using is not convenient to carry, and cost reduction and efficiency improvement are not facilitated due to the fact that transmitting and receiving devices cannot share components in production are solved, and the wireless communication module has the advantages of being easy and convenient to use, easy to carry and high in practicability. And the external antenna is reliably connected with the shell and is convenient to rotate, and the production cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of audio and video transceivers, and specifically relates to an intelligent wireless audio and video transceiver. Background Technology

[0002] The transmitter assembly connects to computers and other input devices via a Type-C connector. It processes audio, video, and image signals, converts them into wireless signals, and transmits them through an external antenna. Simultaneously, the corresponding receiver assembly receives the wireless signals transmitted from the transmitter assembly via its external antenna and then inputs the audio, video, and image signals to a display or playback terminal via a Type-C / USB / HDMI interface. Traditional methods of transmitting and playing audio, video, and images require numerous power cables and various signal cables, making operation cumbersome and unsightly. Devices typically require connections to power cords, network cables, RF cables, etc. For example, one brand of transceiver requires simultaneous connections to 2.4GHz and 5GHz antennas, Ethernet cables, and fiber optic cables, totaling as many as five cables. These cables are prone to tangling and accidental unplugging, and have strict limitations regarding the installation environment (such as cable bending radius and grounding requirements). Cables, as the main propagation path of electromagnetic interference, are easily affected by nearby high-voltage power lines, motors and other equipment. In industrial environments, cable coupling interference often leads to an increase in data error rate. Built-in antennas are limited by the equipment casing and internal electromagnetic environment, resulting in a small effective radiation area. Moreover, built-in antennas cannot be adjusted in direction, leading to poor signal stability in complex environments (such as multipath reflections and obstacle obstruction). High-frequency components such as power modules and processors inside the equipment can easily generate electromagnetic interference to built-in antennas.

[0003] Meanwhile, existing wireless transceivers typically use casings of varying shapes and sizes depending on their function, making it impossible to share components and hindering cost reduction and efficiency improvement in production. Utility Model Content

[0004] The purpose of this utility model is to provide an intelligent wireless audio and video transceiver device, which solves the technical problems of complicated cables, cumbersome operation, inconvenient use, and the inability of transceivers to share components in production, which is not conducive to cost reduction and efficiency improvement.

[0005] To address the above technical problems, this utility model discloses an intelligent wireless audio and video transceiver device, including a wireless audio and video transmitter and a wireless audio and video receiver. The wireless audio and video transmitter and receiver have the same outer shell, which includes a front shell and a bottom shell. The bottom shell includes a motherboard cavity and a support column. The support column is located at the bottom center of the motherboard cavity. Strip-shaped heat dissipation holes are provided around the bottom shell. The motherboard cavity houses a functional motherboard, which includes a transmitting motherboard of the wireless audio and video transmitter and a receiving motherboard of the wireless audio and video receiver. The functional motherboard is placed in the motherboard cavity, and the support column supports the functional motherboard. A battery is installed on the functional motherboard for power supply. The functional motherboard is fixedly connected to the bottom shell by fixing screws. An antenna mounting hole is provided on the side of the bottom shell, and an external antenna is inserted into the antenna mounting hole.

[0006] Preferably, the external antenna is fixedly connected to the antenna mounting hole by a snap-fit ​​structure and rotates relative to it. The external antenna is provided with an elastic arm, and the hook of the elastic arm is inclined and stepped, with a guide slope at the front end to facilitate insertion into the antenna mounting hole. The edge or interior of the antenna mounting hole is provided with a slot that matches the hook.

[0007] Preferably, the slot is an annular groove, and a limiting part is provided inside the slot. The limiting part is a protrusion higher than the bottom of the annular groove, which is used to limit the relative rotation angle of the external antenna.

[0008] Preferably, an anti-slip pad is provided in the mounting hole of the fixing screw on the bottom shell, and the extended part of the anti-slip pad is inserted into the mounting hole of the fixing screw to achieve a fixed connection.

[0009] Preferably, the transmitting motherboard is provided with a signal input interface, which is a TYPE-C, USB, or HDMI interface.

[0010] Preferably, the receiving motherboard is provided with a signal output interface, which is a TYPE-C, USB, or HDMI interface.

[0011] Preferably, the wireless audio and video transmitting device and the wireless audio and video receiving device integrate a rechargeable battery or use a dry cell battery.

[0012] Preferably, the rechargeable battery is charged via a TYPE-C or USB interface or wireless charging technology.

[0013] Preferably, the functional motherboard includes a microcontroller unit, a wireless communication module, a power management circuit, a storage unit, an interface circuit, a clock circuit, and a reset circuit.

[0014] Preferably, the wireless communication module is connected to the external antenna via an RF coaxial cable or a PCB antenna connector.

[0015] Compared with the prior art, the beneficial effects obtained by this utility model are:

[0016] This utility model discloses an intelligent wireless audio and video transceiver device. It adopts a shell of the same structural size, and the transmitting and receiving devices can share the same shell. The external antenna is fixedly connected to the antenna mounting hole on the shell using a snap-fit ​​structure and can rotate relative to it. It is powered by a battery. The functional motherboard is equipped with a wireless communication module that is connected to the external antenna via an RF coaxial cable or a PCB antenna connector. This invention solves the technical problems of complicated cables, cumbersome operation, inconvenience of use, and the inability of the transceiver devices to share components in production, which is not conducive to cost reduction and efficiency improvement. It has the advantages of being easy to use and carry, eliminating complicated cables, ensuring reliable connection between the external antenna and the shell and facilitating rotation, and reducing production costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the signal connection of the intelligent wireless audio and video transceiver device of this utility model.

[0018] Figure 2 This is an exploded view of the transmitting device of the intelligent wireless audio and video transceiver of this utility model.

[0019] Figure 3 This is an exploded view of the receiving device of the intelligent wireless audio and video transceiver of this utility model.

[0020] Figure 4 This is a schematic diagram of the transmitting device of the intelligent wireless audio and video transceiver of this utility model.

[0021] Figure 5 This is a schematic diagram of the receiving device of the intelligent wireless audio and video transceiver of this utility model.

[0022] Reference numerals: 1-Wireless audio / video transmitter; 11-Transmitting motherboard; 111-Signal input interface; 2-Wireless audio / video receiver; 21-Receiver motherboard; 211-Signal output interface; 3-Outer shell; 31-Front shell; 32-Bottom shell; 321-Motherboard cavity; 322-Support column; 323-Heat dissipation hole; 324-Antenna mounting hole; 325-Anti-slip pad; 33-External antenna; 331-Elastic arm; 332-Hook. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. However, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figures 1 to 5 This utility model discloses an intelligent wireless audio and video transceiver device, including a wireless audio and video transmitter 1 and a wireless audio and video receiver 2. The wireless audio and video transmitter 1 and the wireless audio and video receiver 2 have the same outer shell 3. The outer shell includes a front shell 31 and a bottom shell 32. The bottom shell 32 includes a mainboard cavity 321 and a support column 322. The support column 322 is located at the bottom center of the mainboard cavity 321. The bottom shell 32 has strip-shaped heat dissipation holes 323 around its perimeter. The mainboard cavity 321 is used to house the functional mainboard. The functional mainboard includes the transmitting mainboard 11 of the wireless audio and video transmitter 1 and the receiving mainboard 21 of the wireless audio and video receiver 2. The functional mainboard is placed in the mainboard cavity 321, and the support column 322 supports the functional mainboard. The wireless audio and video transmitter 1 and the wireless audio and video receiver 2 integrate a rechargeable battery or use dry batteries to power the device, eliminating the need for an external power cord.

[0025] The bottom shell 32 has an antenna mounting hole 324 on its side, into which an external antenna 33 is inserted. The external antenna 33 is responsible for transmitting and receiving wireless signals. The external antenna 33 is fixedly connected to the antenna mounting hole 324 by a snap-fit ​​structure and can rotate relative to it. The external antenna 33 has an elastic arm 331, and the hook 332 of the elastic arm 331 is inclined and stepped, with a guide slope at the front end to facilitate insertion into the antenna mounting hole 324. The edge or interior of the antenna mounting hole 324 has a slot that matches the hook 332. The slot is an annular groove, and a limiting part is provided inside the slot. The limiting part is a protrusion higher than the bottom of the annular groove, which is used to limit the relative rotation angle of the external antenna 33.

[0026] The main board is fixedly connected to the bottom shell 32 by fixing screws. An anti-slip pad 325 is provided in the fixing screw mounting hole of the bottom shell 32. The extended part of the anti-slip pad 325 is inserted into the fixing screw mounting hole to achieve a fixed connection.

[0027] The transmitting motherboard 11 is provided with a signal input interface 111, which is a TYPE-C, USB, or HDMI interface. The receiving motherboard 21 is provided with a signal output interface 211, which is a TYPE-C, USB, or HDMI interface. Simultaneously, the signal input / output interface can also serve as a charging interface for a rechargeable battery, which can be charged via a TYPE-C or USB interface or wireless charging technology.

[0028] The functional motherboard includes a microcontroller unit, a wireless communication module, a power management circuit, a storage unit, an interface circuit, a clock circuit, and a reset circuit. The wireless communication module is connected to the external antenna 33 via an RF coaxial cable, a PCB antenna connector, or a flexible printed circuit board (FPCB). The RF coaxial cable connects the RF output port of the wireless communication module to the input port of the external antenna. The RF coaxial cable consists of an inner conductor, an insulating medium, an outer conductor, and a sheath, effectively transmitting RF signals and reducing signal attenuation and interference. The PCB antenna connector is a dedicated antenna connector on the printed circuit board (PCB) of the wireless communication module, through which the external antenna connects to the module. Common PCB antenna connectors include SMA, SMB, and MCX types, which have different sizes and electrical performance. The FPCB fabricates the antenna on the flexible printed circuit board, and then connects the antenna to the wireless communication module via the FPCB. The FPCB can be bent and arranged according to the internal space structure of the device, achieving a compact design.

[0029] The microcontroller unit employs a high-performance multi-core processor or a dedicated DSP chip, undertaking data parsing, algorithm computation, and logic control tasks. It not only performs real-time decoding and error correction of received signals but also coordinates the work between modules, ensuring efficient operation of the data processing flow. Simultaneously, it is equipped with a large-capacity storage unit, including fast-read / write RAM and flash memory for persistent storage, guaranteeing data processing and storage capabilities.

[0030] The external antenna 33 adopts a microstrip antenna or ceramic antenna, which has the characteristics of small size and stable performance. It can effectively radiate and receive electromagnetic wave signals within a certain frequency range to realize wireless communication with other Bluetooth devices. The wireless communication module adopts a Bluetooth chip, which integrates Bluetooth protocol stack and radio frequency processing functions. It is responsible for processing Bluetooth signal encoding, decoding, encryption, decryption and other operations, while controlling the connection and data transmission with other devices. It supports multiple Bluetooth technology standards, such as Bluetooth 4.0 and 5.0, to adapt to different application scenarios and device compatibility requirements.

[0031] In another embodiment, the wireless communication module employs a multi-mode wireless communication module, integrating a communication chip that supports multiple protocols such as Bluetooth, Wi-Fi, ZigBee, and 5G. It can automatically switch modes according to the scenario to meet different distance, power consumption, and transmission rate requirements. Antennas and RF front-end components, such as power amplifiers, low-noise amplifiers, and filters, amplify, filter, and modulate the signal to ensure stable signal transmission and extend the communication range.

[0032] The power management circuit adapts to different input power sources through a power conversion circuit, providing a stable voltage for each module. The battery management system, when powered by the battery, is responsible for charge / discharge control, power monitoring, and overcharge / over-discharge protection. Combined with low-power technologies such as dynamic voltage regulation and sleep / wake-up functionality, it optimizes energy consumption and extends device battery life.

[0033] The storage unit is used to store program code, configuration information, and temporary data, including read-only memory (ROM) and random access memory (RAM). ROM stores the fixed program and important configuration parameters, such as the wireless transceiver's initialization settings and communication protocol stack; RAM is used to temporarily store data during device operation, such as sensor data being processed, wireless data packets to be sent or received, etc. In addition, some wireless transceivers may be equipped with external flash memory chips to expand storage capacity to meet the need for storing large amounts of data, such as historical data records, audio or video files, etc.

[0034] The interface circuit provides a connection interface with external devices or sensors. Common interface types include General Purpose Input / Output (GPIO), Serial Peripheral Interface (SPI), Integrated Circuit Bus Interface (I2C), and Universal Asynchronous Receiver / Transmitter (UART). Through these interfaces, the wireless transceiver can easily connect to various sensors (such as temperature sensors, humidity sensors, and light sensors), actuators (such as relays and motor drivers), or other external devices to achieve richer functionality. For example, a high-precision temperature sensor can be connected via the SPI interface to collect ambient temperature data in real time and transmit it wirelessly.

[0035] The clock circuit provides a clock signal for the entire system, ensuring that all modules can operate synchronously. It typically consists of a crystal oscillator and a related clock divider circuit. The crystal oscillator generates a stable high-frequency clock signal, which is then divided by the clock divider circuit into different frequency clock signals suitable for the operation of each module, such as providing a system clock for the MCU or an RF clock for the wireless communication module. The stability of the clock circuit is crucial to the performance of the wireless transceiver, directly affecting the accuracy of data transmission and the stability of the system.

[0036] The reset circuit is used to restore each module and register to its initial state when the system malfunctions or powers on, ensuring normal system startup and operation. The reset circuit typically consists of a reset chip or a simple RC circuit. Upon power-on or upon receiving a reset signal, it generates a reset pulse, causing the MCU and other critical modules to reset. Furthermore, some reset circuits also monitor the power supply voltage; when abnormal fluctuations occur in the power supply voltage, they automatically trigger a reset operation to protect the system from damage.

[0037] The intelligent wireless audio and video transceiver provided by this utility model has only one external antenna, no power cord or other cables, and the transmitting device and receiving device are very similar, sharing some components, which has beneficial effects on both use and production.

[0038] The above examples are merely specific embodiments of this utility model. Obviously, this utility model is not limited to the above embodiments, and many similar modifications are possible. All variations that can be directly derived or conceived by those skilled in the art from the content disclosed in this utility model should be considered within the scope of protection of this utility model.

Claims

1. An intelligent wireless audio and video transceiver, characterized in that, The device includes a wireless audio / video transmitter (1) and a wireless audio / video receiver (2). The wireless audio / video transmitter (1) and the wireless audio / video receiver (2) have the same housing (3). The housing includes a front shell (31) and a bottom shell (32). The bottom shell (32) includes a motherboard cavity (321) and a support column (322). The support column (322) is located at the bottom center of the motherboard cavity (321). Strip-shaped heat dissipation holes (323) are provided around the bottom shell (32). The motherboard cavity (321) is used to house the functional motherboard. The functional motherboard includes the transmitting motherboard (11) of the wireless audio and video transmitting device (1) and the receiving motherboard (21) of the wireless audio and video receiving device (2). The functional motherboard is placed in the motherboard cavity (321), and the support column (322) supports the functional motherboard. The functional motherboard is equipped with a battery for power supply. The functional motherboard is fixedly connected to the bottom shell (32) by fixing screws. The side of the bottom shell (32) is provided with an antenna mounting hole (324), and an external antenna (33) is inserted into the antenna mounting hole (324).

2. The intelligent wireless audio and video transceiver device according to claim 1, characterized in that, The external antenna (33) is fixedly connected to the antenna mounting hole (324) by a snap-fit ​​structure and rotates relative to each other. The external antenna (33) is provided with an elastic arm (331). The hook (332) of the elastic arm (331) is in the shape of an inclined step, and the front guide slope is convenient for insertion into the antenna mounting hole (324). The edge or inside of the antenna mounting hole (324) is provided with a slot that matches the hook (332).

3. The intelligent wireless audio and video transceiver device according to claim 2, characterized in that, The slot is an annular groove, and a limiting part is provided inside the slot. The limiting part is a protrusion higher than the bottom of the annular groove, which is used to limit the relative rotation angle of the external antenna (33).

4. The intelligent wireless audio and video transceiver device according to claim 1, characterized in that, An anti-slip pad (325) is provided in the mounting hole of the fixing screw of the bottom shell (32). The extended part of the anti-slip pad (325) is inserted into the mounting hole of the fixing screw to achieve a fixed connection.

5. The intelligent wireless audio and video transceiver device according to claim 1, characterized in that, The transmitting motherboard (11) is provided with a signal input interface (111), which is a TYPE-C, USB or HDMI interface.

6. The intelligent wireless audio and video transceiver device according to claim 1, characterized in that, The receiving motherboard (21) is provided with a signal output interface, which is a TYPE-C, USB, or HDMI interface.

7. The intelligent wireless audio and video transceiver device according to claim 1, characterized in that, The wireless audio and video transmitter (1) and the wireless audio and video receiver (2) integrate rechargeable batteries or use dry batteries.

8. The intelligent wireless audio and video transceiver device according to claim 7, characterized in that, The rechargeable battery is charged via a TYPE-C or USB interface or wireless charging technology.

9. The intelligent wireless audio and video transceiver device according to claim 1, characterized in that, The functional motherboard includes a microcontroller unit, a wireless communication module, a power management circuit, and an interface circuit.

10. The intelligent wireless audio and video transceiver device according to claim 9, characterized in that, The wireless communication module is connected to the external antenna (33) via an RF coaxial cable or a PCB antenna connector.

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