CN214675636U

CN214675636U - Audio circuit capable of reading TF card through DMX512 control

Info

Publication number: CN214675636U
Application number: CN202120664478.XU
Authority: CN
Inventors: 王帅; 隆新级; 彭信健
Original assignee: Foshan Yinhe Lanjing Technology Co ltd
Current assignee: Foshan Yinhe Lanjing Technology Co ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-11-09
Anticipated expiration: 2031-04-01

Abstract

The utility model discloses a can read audio circuit of TF card through DMX512 control. Can read audio circuit of TF card through DMX512 control, including main control chip and DMX512 accuse platform and the voice control chip of being connected with main control chip communication, voice control chip control connection TF card and voice drive chip, voice drive chip control connection audio playback equipment is equipped with signal conversion circuit between main control chip and the DMX512 accuse platform, and signal conversion circuit converts the DMX512 of DMX512 accuse platform into serial signals. The utility model discloses a set up DMX512 accuse platform and outdoor DMX512 lamps and lanterns compatible control, the sound source is broadcast in convenient selection and the volume of adjusting the broadcast, has solved the reputation interactive problem of outdoor lamps and lanterns to support the TF card to read, can change the broadcast sound source through the mode of changing the TF card, suitability and expansibility are strong, can be applied to multiple scene, facilitate promotion.

Description

Audio circuit capable of reading TF card through DMX512 control

Technical Field

The utility model relates to a lamps and lanterns control field, in particular to audio circuit through DMX512 control readable TF card.

Background

The DMX512 lamps in the existing lighting market are widely applied, particularly outdoor DMX512 lamps are applied in various occasions, but most of the existing outdoor DMX512 lamps do not have the function of sound playing outside and cannot well realize the matching of lamplight and music; at present, a small number of outdoor lamps have an external sound playing function, but only can play a specific sound source, and the replacement of the sound source is very tedious, so that users can experience insufficient feelings on one hand, and the flexibility of the sound source capable of being replaced at any time is lacked on the other hand.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a realize lamps and lanterns reputation cooperation and change audio frequency circuit that sound source convenient and fast can read TF card through DMX512 control.

For realize above-mentioned purpose, the utility model discloses a following technical scheme, can read the audio circuit of TF card through DMX512 control, including main control chip and the DMX512 accuse platform and the voice control chip of being connected with the main control chip communication, voice control chip control connection TF card and voice drive chip, voice drive chip control connection audio playback equipment is equipped with signal conversion circuit between main control chip and the DMX512 accuse platform, and signal conversion circuit converts the DMX512 of DMX512 accuse platform into serial signals.

In some embodiments, the signal conversion circuit uses an RS485 communication chip.

In some embodiments, the RS485 communication chip is model UN 485E.

In some embodiments, the voice control chip is provided with a crystal oscillator circuit.

In some embodiments, the voice control device further comprises a first power supply circuit and a second power supply circuit, wherein the first power supply circuit is electrically connected with the main control chip and the voice driving chip, and the second power supply circuit is electrically connected with the voice driving chip.

In some embodiments, the first power supply circuit is a transformation circuit for transforming dc 24V to dc 5V, and the second power supply circuit is a transformation circuit for transforming dc 5V to dc 3.3V.

The utility model has the advantages that: the utility model discloses an audio circuit that DMX512 control can read TF card, through setting up DMX512 accuse platform and outdoor DMX512 lamps and lanterns compatible control, the sound source is broadcast in convenient selection and the volume of adjusting the broadcast, has solved the reputation interactive problem of outdoor lamps and lanterns to support the TF card to read, can change the broadcast sound source through the mode of changing the TF card, suitability and expansibility are strong, can be applied to multiple scene, facilitate promotion.

Drawings

Fig. 1 is a schematic diagram of a frame structure of an audio circuit capable of reading a TF card through DMX512 control according to the present invention;

FIG. 2 is a schematic diagram of the main control chip according to the present invention;

fig. 3 is a schematic circuit diagram of the signal conversion circuit of the present invention;

FIG. 4 is a schematic diagram of the circuit principle of the voice control chip of the present invention;

fig. 5 is a schematic circuit diagram of the voice driving chip of the present invention;

FIG. 6 is a schematic diagram of the circuit principle of the TF card of the present invention;

FIG. 7 is a schematic diagram of the crystal oscillator circuit according to the present invention;

fig. 8 is a schematic circuit diagram of a first power supply circuit according to the present invention;

fig. 9 is a schematic circuit diagram of a second power supply circuit according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Examples

As shown in fig. 1, the audio circuit capable of reading the TF card through DMX512 control includes a main control chip, and a DMX512 console and a voice control chip which are in communication connection with the main control chip, the voice control chip is in control connection with the TF card and the voice driving chip, the voice driving chip is in control connection with the audio playing device, a signal conversion circuit is arranged between the main control chip and the DMX512 console, and the signal conversion circuit converts the DMX512 of the DMX512 console into a serial port signal.

As shown in fig. 3, the signal conversion circuit adopts an RS485 communication chip, the model of the RS485 communication chip adopts UN485E, and the input end of the RS485 communication chip is connected to the DMX512 signal of the DMX512 console and converted into a serial port signal to be sent to the main control chip.

As shown in fig. 2, the main control chip adopted in this embodiment is MS51FB9AE, and pins 8 and 18 of the main control chip are connected to serial signals output by the RS485 communication chip, and perform data communication with the voice control chip through

pins

2 and 3.

As shown in fig. 4, the voice control chip adopted in this embodiment is WT2605X-16S, the voice control chip is in communication connection with the main control chip through

pins

4 and 5, is in communication connection with the TF card after being connected with the load resistor through

pins

6, 7, and 8, and is in communication connection with the voice driving chip through pin 9, and

pins

2 and 3 of the voice control chip are electrically connected to the crystal oscillator circuit.

As shown in fig. 5, the voice driver chip in this embodiment is of a type WT4890, and the voice driver chip drives the audio playing device to play sound after receiving various instructions of audio playing of the voice controller chip.

As shown in fig. 6, which is a schematic circuit diagram of the TF card, the TF card reads the contents of the TF card through the voice control chip, and the TF card can be directly replaced to achieve the purpose of replacing the sound source.

As shown in fig. 7, it is a crystal oscillator circuit of the voice control chip.

As shown in fig. 8 and 9, the first power supply circuit and the second power supply circuit of this embodiment are configured such that the first power supply circuit converts a 24V dc power into a 5V dc power and supplies power to the main control chip circuit, the RS485 communication chip, and the voice driving chip circuit; the second power supply circuit converts the 5V direct current into 3.3V direct current and supplies power to the voice control chip circuit.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. Can read audio circuit of TF card through DMX512 control, its characterized in that includes main control chip and DMX512 accuse platform and the voice control chip of being connected with main control chip communication, voice control chip control connection TF card and voice drive chip, voice drive chip control connection audio playback equipment, be equipped with signal conversion circuit between main control chip and the DMX512 accuse platform, signal conversion circuit converts the DMX512 of DMX512 accuse platform into serial signals.

2. The audio circuit capable of reading the TF card through DMX512 control of claim 1, wherein the signal conversion circuit employs an RS485 communication chip.

3. The audio circuit capable of reading the TF card through DMX512 control of claim 2 wherein the RS485 communication chip is UN485E model.

4. The audio circuit capable of reading the TF card through DMX512 control of claim 1, wherein said voice control chip is provided with a crystal oscillator circuit.

5. The audio circuit capable of reading the TF card through DMX512 control according to claim 1, further comprising a first power supply circuit and a second power supply circuit, wherein the first power supply circuit is electrically connected with the main control chip and the voice driving chip, and the second power supply circuit is electrically connected with the voice controlling chip.

6. The audio circuit of claim 5, wherein the first power supply circuit is a DC 24V to DC 5V transformer circuit, and the second power supply circuit is a DC 5V to DC 3.3V transformer circuit.