Audio power amplifier connection system based on RJ45 network port

Abstract

The utility model relates to the technical field of audio power amplifiers, in particular to an audio power amplifier connection system based on an RJ45 network port, which comprises a DSP (Digital Signal Processor) power amplifier system, vehicle-mounted sound source equipment and a man-machine interaction interface, the DSP power amplifier system comprises a DSP processing circuit, a power amplifier circuit, a loudspeaker, a Bluetooth circuit and a power supply and control circuit; the Bluetooth circuit is in direct communication connection with the DSP processing circuit, and the power supply and control circuit is electrically connected with the Bluetooth circuit; the power supply and control circuit is electrically connected with the DSP processing circuit; the DSP processing circuit is electrically connected with the power amplifier circuit; and the man-machine interaction interface is electrically connected with the DSP processing circuit, so that real-time and stable transmission and convenient connection of audio data are realized, and real lossless playing is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of audio power amplifiers, in particular to an audio power amplifier connection system based on an RJ45 network port. Background Art

[0002] With the development of digital audio technology, the audio amplifier connection system based on RJ45 network port has gradually become a hot topic in the audio field. Traditional audio amplifier systems usually use analog connections, which have problems such as poor signal transmission quality and troublesome cable wiring. The RJ45 network port connection method is widely used in the connection of network cables between network devices of local area networks and broadband Internet users, which can achieve efficient, stable and real-time hardware debugging and transmission requirements. Combined with the current market demand for vehicle-mounted DSP amplifier products, higher requirements are also put forward for the stable and real-time transmission of audio data and control data. The research and application of the audio amplifier connection system based on the RJ45 network port can improve the performance and reliability of the audio system, meet the user's needs for sound quality and user experience, and has broad market prospects and application prospects. Therefore, in-depth research and development of the audio amplifier connection system based on the RJ45 network port has important theoretical and practical significance. Utility Model Content

[0003] The utility model overcomes the shortcomings of the prior art and provides an audio power amplifier connection system based on an RJ45 network port.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The utility model discloses an audio power amplifier connection system based on an RJ45 network port, the audio power amplifier connection system comprising a DSP power amplifier system, a vehicle-mounted audio source device and a human-computer interaction interface; the DSP power amplifier system comprises a DSP processing circuit, a power amplifier circuit, a loudspeaker, a Bluetooth circuit, a power supply and a control circuit;

[0006] The Bluetooth circuit is directly connected to the DSP processing circuit for communication; the power supply and control circuit is electrically connected to the Bluetooth circuit; the power supply and control circuit is electrically connected to the DSP processing circuit; the DSP processing circuit is electrically connected to the power amplifier circuit; and the human-computer interaction interface is electrically connected to the DSP processing circuit.

[0007] Furthermore, in a preferred embodiment of the present invention, the Bluetooth circuit is connected via an RJ45 network port.

[0008] Furthermore, in a preferred embodiment of the utility model, the RJ45 network port is an Ethernet interface, supporting 10 Mbps and 100 Mbps adaptive network connection speeds, and is combined with a Bluetooth module in the DSP power amplifier system to achieve convenient connection to the DSP audio system.

[0009] Furthermore, in a preferred embodiment of the present invention, the audio signal can be output to a speaker through the power amplifier circuit.

[0010] Furthermore, in a preferred embodiment of the present invention, the Bluetooth circuit is powered by 3.3V and communicates with I 2 The S bus is used for data transmission, and then the DSP audio signal is connected and controlled to transmit digital signals.

[0011] Furthermore, in a preferred embodiment of the present invention, the DSP power amplifier system also includes a tuning module, and the tuning module is used to control the audio signal output by the vehicle-mounted audio source device.

[0012] Furthermore, in a preferred embodiment of the present invention, the data transmission rate of the DSP power amplifier system reaches 24Mbps.

[0013] Furthermore, in a preferred embodiment of the present invention, the effective data transmission distance of the DSP power amplifier system reaches 15m.

[0014] Furthermore, in a preferred embodiment of the utility model, a communication connection is established through an RJ45 network port and a host-side RJ45 network port reserved for a DSP power amplifier system, a tuning module is connected, and the audio signal output by the vehicle-mounted audio source device is controlled, and then output to the speaker through the power amplifier circuit.

[0015] The utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0016] (1) The RJ45 network port is directly connected to the DSP audio processing device to transmit data efficiently and in real time, achieving stable and high-speed transmission of audio data;

[0017] (2) High transmission rate reduces the sound quality loss caused by low transmission rate, greatly improves the sound quality, saves costs, and provides better humanization and user experience;

[0018] (3) It realizes convenient connection to DSP audio system, which effectively reduces interference and also realizes a unified interface method for DSP to connect external Bluetooth modules in the automotive modification industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] According to the drawings of various embodiments of the present invention given below, the embodiments of the present invention will be more fully understood. However, this should not be understood as limiting the present invention to specific embodiments, but is only used for explanation and understanding. For ordinary technicians in this field, other drawings can be obtained according to these drawings without creative work.

[0020] Figure 1 This is the connection diagram of this system;

[0021] Figure 2 This is a structural diagram of the RJ45 network port. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the utility model, the reference to "embodiment", "one embodiment", "some embodiments", or "other embodiments" indicates that the specific features, structures or characteristics described in conjunction with the embodiment are included in at least some embodiments, but not necessarily all embodiments. Multiple occurrences of "embodiment", "one embodiment", or "some embodiments" do not necessarily all refer to the same embodiment. If the specification describes that a component, feature, structure or characteristic "may", "perhaps" or "can" be included, the specific component, feature, structure or characteristic is not necessarily included. If the specification or claim mentions "one" element, it does not mean that there is only one element. If the specification or claim mentions "another" element, it does not exclude the presence of more than one other element. In addition, specific features, structures, functions or characteristics can be combined in one or more embodiments in any suitable manner. For example, the first embodiment can be combined with the second embodiment, as long as the specific features, structures, functions or characteristics associated with the two embodiments are not mutually exclusive.

[0024] In the description of the present invention, unless otherwise specified, the use of ordinal adjectives such as "first", "second", and "third" to describe a common object only refers to different instances of the same object, and does not imply that the objects described in this way must adopt a given order, whether in time, space, order, or any other manner. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0026] like Figure 1 , Figure 2 As shown, the utility model discloses an audio power amplifier connection system based on an RJ45 network port, the audio power amplifier connection system includes a DSP power amplifier system, a vehicle-mounted audio source device, and a human-computer interaction interface; the DSP power amplifier system includes a DSP processing circuit, a power amplifier circuit, a speaker, a Bluetooth circuit, a power supply, and a control circuit;

[0027] The Bluetooth circuit is directly connected to the DSP processing circuit for communication; the power supply and control circuit is electrically connected to the Bluetooth circuit; the power supply and control circuit is electrically connected to the DSP processing circuit; the DSP processing circuit is electrically connected to the power amplifier circuit; and the human-computer interaction interface is electrically connected to the DSP processing circuit.

[0028] It should be noted that this system is a DSP power amplifier system with an external Bluetooth connection based on the RJ45 network port. In the DSP audio power amplifier system, the Bluetooth circuit connected through the RJ45 network port directly communicates with the DSP processing circuit, connects to the tuning software, controls the audio signal output by the vehicle audio source device, and then outputs it to the speaker through the power amplifier circuit, thereby achieving connection control of the smart device terminal and realizing real-time and stable transmission of audio sound effects. The RJ45 network port is a commonly used Ethernet interface that supports 10M and 100M adaptive network connection speeds. In the DSP power amplifier system, a high-performance Bluetooth module with high integration and rich interfaces is used to realize convenient connection to the DSP audio system. This convenient connection method can effectively reduce interference, and also realizes a unified interface method for DSP connection to external Bluetooth modules in the automotive modification industry.

[0029] Furthermore, in a preferred embodiment of the present invention, the Bluetooth circuit is connected via an RJ45 network port.

[0030] Furthermore, in a preferred embodiment of the utility model, the RJ45 network port is an Ethernet interface, supporting 10 Mbps and 100 Mbps adaptive network connection speeds, and is combined with a Bluetooth module in the DSP power amplifier system to achieve convenient connection to the DSP audio system.

[0031] Furthermore, in a preferred embodiment of the present invention, the audio signal can be output to a speaker through the power amplifier circuit.

[0032] Furthermore, in a preferred embodiment of the present invention, the Bluetooth circuit is powered by 3.3V and communicates with I 2 The S bus is used for data transmission, and then the DSP audio signal is connected and controlled to transmit digital signals.

[0033] Furthermore, in a preferred embodiment of the present invention, the DSP power amplifier system also includes a tuning module, and the tuning module is used to control the audio signal output by the vehicle-mounted audio source device.

[0034] Furthermore, in a preferred embodiment of the present invention, the data transmission rate of the DSP power amplifier system reaches 24Mbps.

[0035] Furthermore, in a preferred embodiment of the present invention, the effective data transmission distance of the DSP power amplifier system reaches 15m.

[0036] Furthermore, in a preferred embodiment of the utility model, a communication connection is established through an RJ45 network port and a host-side RJ45 network port reserved for a DSP power amplifier system, a tuning module is connected, and the audio signal output by the vehicle-mounted audio source device is controlled, and then output to the speaker through the power amplifier circuit.

[0037] It should be noted that the RJ45 network port Bluetooth circuit, the Bluetooth module is powered by 3.3V (J1 interface), communicates with I 2 The S bus is used for data transmission, and then the DSP audio signal is connected and controlled to transmit digital signals. The Bluetooth device connected to the RJ45 network port communicates with the host-side RJ45 network port reserved by the DSP power amplifier system through the RJ45 network port, connects to the tuning software, controls the audio signal output by the vehicle audio source device, and then outputs it to the speaker through the power amplifier circuit, thereby achieving connection control of the smart device terminal.

[0038] Its data transmission rate reaches 24Mbps and the effective distance reaches 15m, which realizes high-speed and real-time transmission of DSP audio data, can effectively reduce interference, ensure the efficiency and stability of audio signal transmission in the DSP audio system industry, and realize stable and reliable connection and communication between smart terminal devices and vehicle-mounted DSP audio amplifiers. It ensures high-quality music transmission while maintaining low power consumption and low-cost control, reduces sound quality loss, and greatly improves sound quality.

[0039] The external Bluetooth module of the utility model is connected to the DSP amplifier system through the RJ45 network port to play the audio signal in the intelligent terminal device, realize the real-time and stable transmission of audio data and convenient connection, and achieve true lossless playback.

[0040] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. An audio power amplifier connection system based on RJ45 network port, characterized in that: The audio power amplifier connection system includes a DSP power amplifier system, an on-board audio source device, and a human-computer interaction interface; the DSP power amplifier system includes a DSP processing circuit, a power amplifier circuit, a speaker, a Bluetooth circuit, a power supply, and a control circuit; The Bluetooth circuit is directly connected to the DSP processing circuit for communication; the power supply and control circuit is electrically connected to the Bluetooth circuit; the power supply and control circuit is electrically connected to the DSP processing circuit; the DSP processing circuit is electrically connected to the power amplifier circuit; the human-computer interaction interface is electrically connected to the DSP processing circuit; The Bluetooth circuit is connected via an RJ45 network port; The RJ45 network port is an Ethernet interface that supports 10M and 100M adaptive network connection speeds. In the DSP power amplifier system, it is combined with a Bluetooth module to realize a convenient connection to the DSP audio system. The Bluetooth circuit is powered by 3.3V, communicates with the Bluetooth TXD / RXD serial port, and transmits data with the I²S bus, thereby connecting and controlling the DSP audio signal and transmitting the digital signal; The DSP power amplifier system also includes a tuning module, which is used to control the audio signal output by the vehicle-mounted audio source device; The data transmission rate of the DSP power amplifier system reaches 24Mbps; The effective data transmission distance of the DSP power amplifier system reaches 15m; The RJ45 network port is used to communicate with the RJ45 network port on the host side reserved for the DSP power amplifier system, connect the tuning module, control the audio signal output by the vehicle audio source device, and then output it to the speaker through the power amplifier circuit.

2. According to claim 1, an audio power amplifier connection system based on RJ45 network port is characterized in that: The audio signal can be output to the speaker through the power amplifier circuit.

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