CN218679367U

CN218679367U - Two-way intercom broadcast speaker of ceiling type installation

Info

Publication number: CN218679367U
Application number: CN202222979673.9U
Authority: CN
Inventors: 刘云珍
Original assignee: Shenzhen Xibangyuan Technology Co ltd
Current assignee: Shenzhen Xibangyuan Technology Co ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-03-21
Anticipated expiration: 2032-11-09

Abstract

The utility model discloses a two-way intercom broadcast speaker of ceiling type installation: comprises a ceiling type loudspeaker, a sound pick-up and a control circuit; the pickup is arranged on the top-suction type loudspeaker, and the control circuit is arranged in the top-suction type loudspeaker and is electrically connected with the top-suction type loudspeaker and the pickup; the control circuit comprises an MCU processor, an operational amplifier control module, a power amplifier control module, a network port and a power supply module; the device has the advantages that the loudspeaker is provided with the pickup microphone with high sensitivity, and the voice can be collected through the pickup microphone, so that the two-way talkback function and the background music playing function are realized.

Description

Two-way intercom broadcast speaker of ceiling type installation

Technical Field

The utility model relates to the technical field, specifically indicate a two-way broadcasting speaker that talkbacks of ceiling type installation.

Background

In the existing digital audio background music system industry, a ceiling type loudspeaker is only provided with a background music playing function, and is applied to the fields of hotels, schools, offices and the like.

The speaker cannot collect the peripheral voice and upload to the IP network microphone of the server center. The two-way intercom function cannot be realized. If need realize the function of talkbacking, need additionally to increase intercom. Therefore, a ceiling-mounted two-way intercom broadcast speaker has become an urgent problem to be solved.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that unmanned operation among the digital audio frequency background music system realizes two-way function of talkbacking, realizes that the broadcast talkbacks the terminal integration, can remotely inhale a speaker realization two-way conversation function to the IP on broadcast command center's IP network microphone or server.

In order to solve the technical problem, the utility model provides a technical scheme is a two-way intercom broadcast speaker of ceiling type installation: comprises a ceiling type loudspeaker, a sound pick-up and a control circuit;

the pickup is arranged on the top-suction type loudspeaker, and the control circuit is arranged in the top-suction type loudspeaker and is electrically connected with the top-suction type loudspeaker and the pickup;

the control circuit comprises an MCU processor, an operational amplifier control module, a power amplifier control module, a network port and a power supply module; an MIC input signal pin of the MCU processor is connected with a signal end of the sound pick-up, a signal input end of the power amplifier control module is connected with an electric wire of the MCU processor, a signal output end of the power amplifier control module is connected with a signal input end of the power amplifier control module, and a signal output end of the power amplifier control module is connected with a signal input end of the ceiling type loudspeaker; the network port is electrically connected with a pin of the MCU processor, and the power supply module is used for supplying power to the modules.

As an improvement, the power supply module comprises two independent TCS4326 voltage stabilizing circuits.

As an improvement, the MCU processor is of the model STM32f107vct6.

As an improvement, the engineering control module adopts a TPA3116 chip.

As an improvement, the operational amplifier control module adopts a JRC4558 chip.

Compared with the prior art, the utility model the advantage lie in: the device has the advantages that the loudspeaker is provided with the pickup microphone with high sensitivity, and the voice can be collected through the pickup microphone, so that the two-way talkback function and the background music playing function are realized.

Drawings

Fig. 1 is a schematic structural view of the two-way intercom broadcast speaker of the present invention installed on a ceiling.

Fig. 2 is a schematic circuit diagram of a power supply module.

Fig. 3 is a schematic diagram of a network port circuit.

Fig. 4 is a schematic diagram of an MCU processor circuit.

Fig. 5 is a schematic circuit diagram of the operational amplifier control module and the power amplifier control module.

Fig. 6 is a system connection diagram.

Fig. 7 is a control circuitry block diagram.

As shown in the figure: 1. ceiling type loudspeaker, 2, adapter, 3, control circuit, 4, MCU treater, 5, operational amplifier control module, 6, power amplifier control module, 7, network port, 8, power supply module.

Detailed Description

The following describes the two-way intercom broadcast speaker mounted on a ceiling according to the present invention in further detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description of the present invention and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and therefore, the present invention should not be construed as being limited thereto. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" means at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

With reference to fig. 1-7, a ceiling-mounted two-way intercom broadcast speaker includes a ceiling-mounted speaker 1, a sound pickup 2, and a control circuit 3;

the pickup 2 is arranged on the ceiling type loudspeaker 1, and the control circuit 3 is arranged in the ceiling type loudspeaker 1 and is electrically connected with the ceiling type loudspeaker 1 and the pickup 2;

the control circuit 3 comprises an MCU processor 4, an operational amplifier control module 5, a power amplifier control module 6, a network port 7 and a power supply module 8; an MIC input signal pin of the MCU processor 4 is connected with a signal end of the sound pick-up 2, a signal input end of the power amplifier control module 6 is connected with the MCU processor 4 through a wire, a signal output end of the power amplifier control module 6 is connected with a signal input end of the power amplifier control module 6, and a signal output end of the power amplifier control module 6 is connected with a signal input end of the ceiling type loudspeaker 1; the network port 7 is electrically connected with a pin of the MCU processor 4, and the power supply module 8 is used for supplying power to the modules.

The power supply module 8 comprises two independent TCS4326 voltage stabilizing circuits.

The MCU processor 4 is STM32f107vct6.

The said industrial control module uses TPA3116 chip.

The operational amplifier control module 5 adopts a JRC4558 chip.

The utility model relates to a two-way intercom broadcast speaker of ceiling type installation's concrete implementation process as follows:

the sound pickup 2 adopts an omnidirectional sound pickup 2-26DB, the sound distance is about 3 meters, the sound is processed by an MCU (microprogrammed control Unit) processor 4STM32f107vct6, the sound can be connected with a network switch through a network port 7, the voice can be collected to a command center by connecting a microphone of the command center near a loudspeaker through the switch to speak, the voice can be communicated with an IP (Internet protocol) microphone of the command center in a bidirectional way, and the terminal of the loudspeaker does not need any button, so that the bidirectional talkback function is realized;

it should be noted that a plurality of devices can be connected through a network switch to be collectively controlled.

The device is integrally designed, a ceiling type installation design is adopted, the device is designed by adopting a DSP audio processing technology, a high-speed industrial chip is adopted, and the starting time is less than 1 second;

a built-in 1-network hardware audio decoding module supports TCP/IP, UDP and IGMP (multicast protocol), and realizes the networked transmission of 16-bit stereo CD sound quality audio signals;

a digital power amplifier module is arranged in the device, so that the tone quality is fine and the power is strong; the device is provided with a direct current standby power interface and a waterproof, moistureproof and anti-drop network cable interface.

The built-in high-sensitivity microphone supports hands-free conversation and an automatic answering mode, and has a wide sound collection area and high tone color reduction degree.

The present invention and its embodiments have been described above, but the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a two-way intercom broadcast speaker of ceiling type installation which characterized in that: comprises a ceiling type loudspeaker, a sound pick-up and a control circuit;

the pickup is arranged on the ceiling type loudspeaker, and the control circuit is arranged in the ceiling type loudspeaker and is electrically connected with the ceiling type loudspeaker and the pickup;

the control circuit comprises an MCU processor, an operational amplifier control module, a power amplifier control module, a network port and a power supply module; an MIC input signal pin of the MCU processor is connected with a signal end of the sound pick-up, a signal input end of the power amplification control module is connected with an MCU processor through a wire, a signal output end of the power amplification control module is connected with a signal input end of the power amplification control module, and a signal output end of the power amplification control module is connected with a signal input end of the ceiling type loudspeaker; the network port is electrically connected with a pin of the MCU processor, and the power supply module is used for supplying power to the modules.

2. A ceiling mounted two way intercom broadcast speaker as in claim 1 wherein: the power supply module comprises two independent TCS4326 voltage stabilizing circuits.

3. The ceiling mounted two-way intercom broadcast speaker of claim 1, wherein: the MCU processor model is STM32f107vct6.

4. A ceiling mounted two way intercom broadcast speaker as in claim 1 wherein: the power amplifier control module adopts a TPA3116 chip.

5. A ceiling mounted two way intercom broadcast speaker as in claim 1 wherein: the operational amplifier control module adopts a JRC4558 chip.