CN214381162U

CN214381162U - Recorded broadcast device

Info

Publication number: CN214381162U
Application number: CN202120548246.8U
Authority: CN
Inventors: 畅严; 王浩
Original assignee: Wuxi Huicong Intelligent Technology Co ltd
Current assignee: Wuxi Huicong Intelligent Technology Co ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-10-08
Anticipated expiration: 2031-03-16

Abstract

The utility model relates to a recorded broadcast technical field discloses a recorded broadcast device, which comprises a housin, install data interface and display screen on the casing, install the recorded broadcast circuit board in the casing, be equipped with the processor circuit on the recorded broadcast circuit board, a memory, power supply circuit, the circuit of making an uproar, wireless transmitting circuit and voice play circuit, the processor circuit respectively with data interface, a memory, the circuit of making an uproar, wireless transmitting circuit, voice play circuit and display screen electricity are connected, the circuit of making an uproar is connected with audio input interface electricity, audio input interface installs on the casing, when the in-service use, through the circuit of making an uproar, can filter the noise in the audio signal, there is not the noise when the audio playback of guaranteeing to record.

Description

Recorded broadcast device

Technical Field

The utility model relates to a recorded broadcast technical field, concretely relates to recorded broadcast device.

Background

Currently, in many occasions, a recording and playing device is required to record video and audio on site, and then generate a standard streaming media file for external playing or post editing. However, in some complex situations, if the noise is too large, the recorded audio has noise, and the watching is affected. In addition, the existing recording and broadcasting equipment has a single broadcasting mode and cannot meet the requirement of a user on multi-mode broadcasting.

SUMMERY OF THE UTILITY MODEL

In view of the not enough of background art, the utility model provides a recorded broadcast device, the technical problem that solve is that there is the noise when current recorded broadcast equipment is recorded in the too big occasion of noise, and the broadcast mode is single moreover, can not satisfy user demand.

For solving the technical problem, the utility model provides a following technical scheme: a recording and broadcasting device comprises a shell, a data interface and a display screen are arranged on the shell, a recording and broadcasting circuit board is arranged in the shell, a processor circuit, a memory, a power circuit, a denoising circuit, a wireless transmitting circuit and a voice broadcasting circuit are arranged on the recording and broadcasting circuit board, the processor circuit is respectively connected with the data interface and the memory, the utility model discloses a noise elimination circuit, wireless transmitting circuit, voice playback circuit and display screen electricity are connected, noise elimination circuit is connected with audio input interface electricity, audio input interface installs on the casing, power supply circuit includes rectifier unit and step-down unit, rectifier unit converts the 220V alternating current into first direct current voltage, step-down unit converts first direct current voltage into second direct current voltage, second direct current voltage is respectively to the treater circuit, the memory, wireless transmitting circuit and display screen power supply, first direct current voltage supplies power to voice playback circuit.

In practical use, the processor circuit generates a streaming media file from the recorded video and audio and stores the streaming media file in the memory, video information can be played through the display screen when playing is needed, and audio information can be played through the voice playing circuit.

Optionally, in certain embodiments, the data interface includes one or more of an RJ45 interface, an RS232 interface, an RS485 interface, a USB interface, an HDMI interface, and an AGV interface, and the data interface is mounted on the left, right, or rear side of the housing.

In actual use, the recorded streaming media file can be stored in the memory, the processor circuit can send the recorded streaming media file to the display through the HDMI interface for display, or send the streaming media file to the switch through the RJ45 interface, then the switch sends the streaming media file to the other video processing devices, or send the streaming media file to the computer through the USB interface, or send the streaming media file to the cloud through the wireless sending circuit.

Optionally, in a certain embodiment, the noise removal circuit includes a sliding rheostat and at least two capacitors, one end of the sliding rheostat is electrically connected to the audio input interface, the adjusting end of the sliding rheostat is electrically connected to one end of each capacitor, the other end of each capacitor is electrically connected to one end of a switch, and the other end of each switch is grounded.

In practical use, the sliding rheostat and all the switches can be installed on the shell, then the impedance of the denoising circuit can be adjusted by rotating the sliding rheostat or disconnecting the corresponding switches, and then noise of different frequencies can be filtered when audio is recorded.

Optionally, in a certain embodiment, the voice playback circuit includes a photo coupler, an electric horn, resistors R3 and R2, a positive electrode of a diode on a primary side of the photo coupler is electrically connected to the processor circuit, a negative electrode of the diode on the primary side of the photo coupler is grounded through a resistor R3, a first dc voltage is input to a collector of a triode on a secondary side of the photo coupler through a resistor R2, an emitter of the triode on the secondary side of the photo coupler is electrically connected to a positive electrode of the speaker, and a negative electrode of the speaker is grounded.

When playing, the processor circuit sends the audio signal of high-low level to the diode of the primary side of the photoelectric coupler, when the audio signal is the high-level signal, the triode of the secondary side of the photoelectric coupler is conducted, when the audio signal is the low-level signal, the triode of the secondary side of the photoelectric coupler is disconnected, and therefore the loudspeaker can be connected or disconnected with the first direct-current voltage according to the frequency of the audio signal, and then voice playing is achieved.

Optionally, in certain embodiments, the resistor R2 is a sliding varistor. The voltage on the loudspeaker can be adjusted by adjusting the resistance value of the resistor R2, so that the volume adjustment is realized.

Optionally, in certain embodiments, the wireless transmission circuit is a wi-fi module. Through wi-fi module, the utility model discloses can send the high in the clouds with the streaming media file in the environment of LAN, supply the user long-range broadcast of looking over.

Compared with the prior art, the utility model beneficial effect who has is: firstly, noise in an audio signal can be filtered through a denoising circuit, so that no noise exists when the recorded audio is played; secondly, a plurality of data interfaces are arranged on the shell, so that the streaming media file can be played in different forms; and finally, the streaming media file can be sent to the cloud end through a wireless sending circuit, so that a user can remotely check and play the streaming media file.

Drawings

The utility model discloses there is following figure:

fig. 1 is a schematic structural view of a housing of the present invention;

FIG. 2 is a block diagram of the hardware circuit structure of the present invention;

fig. 3 is a circuit diagram of the processor circuit and the denoising circuit of the present invention;

fig. 4 is a circuit diagram of the processor circuit and the voice playing circuit of the present invention.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

As shown in fig. 1-4, a recording and broadcasting device includes a casing 1, a data interface and a display screen 2 are installed on the casing 1, a recording and broadcasting circuit board is installed in the casing 1, a processor circuit, a memory, a power circuit 6, a denoising circuit, a wireless transmitting circuit and a voice playing circuit are installed on the recording and broadcasting circuit board, the processor circuit is respectively electrically connected with the data interface, the memory, the denoising circuit, the wireless transmitting circuit, the voice playing circuit and the display screen, the denoising circuit is electrically connected with an audio input interface, the audio input interface is installed on the casing, the power circuit 6 includes a rectifying unit and a voltage reducing unit, the rectifying unit converts 220V alternating current into a first direct current voltage V1, the voltage reducing unit converts the first direct current voltage V1 into a second direct current voltage V2, the second direct current voltage V2 supplies power to the processor circuit, the memory, the wireless transmitting circuit and the display screen respectively, the first dc voltage V1 supplies power to the voice playing circuit, in this embodiment, the first dc voltage V1 is 12V, and the second dc voltage V2 is 3.3V.

Optionally, in certain embodiment, the data interface includes one or more of an RJ45 interface 5, an RS232 interface, an RS485 interface, a USB interface 3, an HDMI interface 4, and an AGV interface, and the data interface is mounted on the left side, the right side, or the rear side of the housing 1. Specifically, in this embodiment, the data interface includes an RJ45 interface 5, a USB interface 3, and an HDMI interface 4, which are located on the right side surface of the housing 1.

In actual use, the recorded streaming media file may be stored in the memory, the processor circuit may send the recorded streaming media file to the display through the HDMI interface 4 for display, or send the streaming media file to the switch through the RJ45 interface 5, and then the switch sends the streaming media file to the other video processing devices, or send the streaming media file to the computer through the USB interface 3, or send the streaming media file to the cloud through the wireless sending circuit.

Referring to fig. 3, in the present embodiment, the noise reduction circuit includes a sliding rheostat R1, capacitors C1, C2, C3, C4, switches K1, K2, K3, and K4, one end of the sliding rheostat R1 is electrically connected to the audio input interface I1, adjustment ends of the sliding rheostat R1 are electrically connected to one ends of all the capacitors, the other end of each capacitor is electrically connected to one end of a switch, and the other end of the switch is grounded.

In practical use, the sliding rheostat R1 and all switches can be installed on the shell 1, and then the impedance of the noise removing circuit can be adjusted by rotating the sliding rheostat R1 or disconnecting the corresponding switches, so that noise of different frequencies can be filtered when audio is recorded.

Referring to fig. 4, in this embodiment, the voice playing circuit includes a photocoupler U1, an electric horn SP1, resistors R3 and R2, the positive electrode of the diode on the primary side of the photocoupler is electrically connected to the processor circuit, the negative electrode of the diode on the primary side of the photocoupler is grounded through a resistor R3, the first dc voltage is input to the collector of the triode on the secondary side of the photocoupler through a resistor R2, the emitter of the triode on the secondary side of the photocoupler is electrically connected to the positive electrode of the speaker, and the negative electrode of the speaker is grounded.

When the audio signal is a high-level signal, the triode on the secondary side of the photoelectric coupler U1 is switched on, and when the audio signal is a low-level signal, the triode on the secondary side of the photoelectric coupler U1 is switched off, so that the loudspeaker can be switched on or switched off the first direct-current voltage according to the frequency of the audio signal, and further voice playing is realized.

Specifically, in certain embodiments, the wireless transmission circuit is a wi-fi module. Through wi-fi module, the utility model discloses can send the high in the clouds with the streaming media file in the environment of LAN, supply the user long-range broadcast of looking over.

To sum up, the utility model can filter the noise in the audio signal through the noise removing circuit, and ensure that the recorded audio is free of noise when being played; secondly, a plurality of data interfaces are arranged on the shell 1, so that the streaming media files can be played in different forms; finally, the streaming media file can be sent to the cloud end through the wireless sending circuit, so that a user can remotely check and play the streaming media file

In light of the above, the present invention is not limited to the above embodiments, and various changes and modifications can be made by the worker without departing from the scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A recording and broadcasting device is characterized in that: the audio-frequency noise reduction device comprises a shell, wherein a data interface and a display screen are installed on the shell, a recorded broadcast circuit board is installed in the shell, a processor circuit, a memory, a power circuit, a noise reduction circuit, a wireless sending circuit and a voice playing circuit are arranged on the recorded broadcast circuit board, the processor circuit is respectively electrically connected with the data interface, the memory, the noise reduction circuit, the wireless sending circuit, the voice playing circuit and the display screen, the noise reduction circuit is electrically connected with an audio input interface, the audio input interface is installed on the shell, the power circuit comprises a rectifying unit and a voltage reduction unit, the rectifying unit converts 220V alternating current into first direct current voltage, the voltage reduction unit converts the first direct current voltage into second direct current voltage, and the second direct current voltage respectively supplies power to the processor circuit, the memory, the wireless sending circuit and the display screen, the first direct current voltage supplies power to the voice playing circuit.

2. The recording and broadcasting device of claim 1, wherein: data interface includes one or more interfaces in RJ45 interface, RS232 interface, RS485 interface, USB interface, HDMI interface and the AGV interface, data interface installs on the left surface, right flank or the trailing flank of casing.

3. The recording and broadcasting device of claim 1, wherein: the denoising circuit comprises a slide rheostat and at least two capacitors, one end of the slide rheostat is electrically connected with the audio input interface, the adjusting end of the slide rheostat is electrically connected with one end of each capacitor, the other end of each capacitor is electrically connected with one end of a switch, and the other end of each switch is grounded.

4. The recording and broadcasting device of claim 1, wherein: the voice playing circuit comprises a photoelectric coupler, an electric horn, resistors R3 and R2, the diode anode on the primary side of the photoelectric coupler is electrically connected with the processor circuit, the diode cathode on the primary side of the photoelectric coupler is grounded through a resistor R3, a first direct current voltage is input to the collector electrode of the triode on the secondary side of the photoelectric coupler through a resistor R2, the emitter electrode of the triode on the secondary side of the photoelectric coupler is electrically connected with the anode of the loudspeaker, and the cathode of the loudspeaker is grounded.

5. The recording and broadcasting device of claim 4, wherein: the resistor R2 is a sliding varistor.

6. The recording and broadcasting device of claim 1, wherein: the wireless sending circuit is a wi-fi module.