CN212341700U - Portable DMX control box circuit with music playing function - Google Patents

Abstract

A portable DMX control box circuit with a music playing function comprises a main control circuit and an OLED display circuit used for displaying and operating, wherein the main control circuit comprises a power supply module, a perpetual calendar timing module and an SD card module; the main control circuit also comprises an MCU module, an MP3 playing module, a DMX communication module, an AD acquisition module and a socket interface; the MCU module comprises a main controller U2, a storage circuit U1 and a storage circuit U4, and the MP3 playing module comprises an MP3 module U3 and an indicator light D1; the DMX communication module comprises a DMX-IN module and a DMX-OUT module, the DMX-IN module comprises a 485 communication chip UX1, and the DMX-OUT module comprises a 485 communication chip UX 2; the AD acquisition module comprises a plurality of output interfaces and acquires data through a voltage division signal of a resistor; the main control circuit and the OLED display circuit are electrically connected through the socket interface.

Description

Portable DMX control box circuit with music playing function

Technical Field

The utility model relates to a stage and view lamps and lanterns circuit design field especially relate to a portable DMX control box circuit of taking music instant music.

Background

The control box can be held by hand or carried about because of its very small volume, and the application in the stage lamps and lanterns field is comparatively extensive, generally is used for the transfer DMX signal. But in fact the control box has many potential functions that can be developed, such as directly controlling the stage light fixture, or having the function of receiving DMX signals and playing music, thereby performing with the stage light fixture.

The stage lamp industry has big control cabinet at present, has both had traditional DMX control function, still has the music instant music simultaneously, but its volume is general comparatively huge, can not do the miniaturization at all, can hand-carry.

Disclosure of Invention

The invention aims to provide a portable DMX control box circuit with a music playing function, which can realize DMX control and the music playing function at the same time.

In order to achieve the purpose, the invention adopts the following technical scheme:

a portable DMX control box circuit with a music playing function comprises a main control circuit and an OLED display circuit used for displaying and operating, wherein the main control circuit comprises a power supply module, a perpetual calendar timing module and an SD card module; the main control circuit further comprises an MCU module, an MP3 playing module, a DMX communication module, an AD acquisition module and a socket interface.

The MCU module comprises a main controller U2, a storage circuit U1 and a storage circuit U4, and the MP3 playing module comprises an MP3 module U3 and an indicator light D1; the DMX communication module comprises a DMX-IN module and a DMX-OUT module, the DMX-IN module comprises a 485 communication chip UX1, and the DMX-OUT module comprises a 485 communication chip UX 2; the AD acquisition module comprises a plurality of output interfaces and acquires data through a voltage division signal of a resistor; the main control circuit and the OLED display circuit are electrically connected through the socket interface.

Further, the DMX-IN module is electrically connected with pins 68 and 69 of the main controller U2 through pins 1 and 4 of the UX 1.

Further, pins 86 and 87 of the main controller U2 are electrically connected with pins 2 and 3 of the MP3 module U3.

Further, the DMX-OUT module is electrically connected with pins 55 and 56 of the main controller U2 through pins 1 and 4 of the UX 1.

Further, the MP3 module U3 has a card reading slot with an SD card, and can read songs in a memory card, and realize an audio output and play function through a speaker interface SPK1 and an earphone interface XS 1.

Compared with the prior art, the technical scheme has the beneficial effects that:

the volume is small, and the design is simple, increases music instant music function on conventional DMX lamps and lanterns circuit design thinking, still can be compatible other peripheral hardware signal inputs through AD collection module simultaneously.

Drawings

The invention is explained in more detail below with reference to the figures and examples.

FIG. 1a is a schematic diagram of a MCU module.

FIG. 1b is a partial diagram of a schematic diagram of an MCU module circuit.

Fig. 2 is a schematic circuit diagram of the MP3 playback module.

Fig. 3 is a schematic circuit diagram of a DMX communication module.

Fig. 4 is a schematic circuit diagram of the AD acquisition module.

Fig. 5 is a schematic diagram of a patch panel interface circuit.

Detailed Description

The utility model provides a portable DMX control box circuit of taking music instant music, includes main control circuit and is used for showing and supplying the OLED display circuit of operation, main control circuit includes power supply module, perpetual calendar time-keeping module, SD card module. The power supply module, the perpetual calendar timing module, the SD card module, and the OLED display circuit described above belong to the common technologies known in the industry, and each lamp has a related circuit, so that they will not be further described here.

The main control circuit also comprises an MCU module, an MP3 playing module, a DMX communication module and an AD acquisition module;

as shown in fig. 1a and fig. 1b, the MCU module uses a chip U2 of STM32 as a main controller, and further includes two memory circuits U1 (I2C corresponds to a memory chip for storing some fixed values) and U4 (a flash memory chip corresponds to a memory for storing some data with a larger memory), and the MCU supplies power by inputting 3.3V voltage through a magnetic bead FB2, so as to perform an isolation function, and ensure the power supply purity of the MCU module without interference from other circuits.

As shown in fig. 2, the MP3 playing module includes an MP3 module U3 and an indicator light D1; the MP3 module has a read card slot with an SD card, can read songs in a memory card, and realizes an audio output and play function through SPK1 (speaker interface) and XS1 (earphone interface), and the ground wire of this part is also connected to the ground of the whole motherboard through magnetic bead FB1, thereby playing an isolation role.

As shown IN fig. 3, the DMX communication module includes two modules, DMX-IN and DMX-OUT, the DMX-IN module includes a 485 communication chip UX1, and the DMX-OUT module includes a 485 communication chip UX 2.

As shown in fig. 4, the AD acquisition module is mainly used for leading out some IO of the main controller U2, and completes data acquisition by a voltage division signal of a resistor, and can be accessed to other data signals as a standby function.

As shown in FIG. 5, the socket interface is JP5, and the main control circuit and the OLED display circuit are in data communication via JP 5.

The circuit works as follows

Control signals enter UX1 through DMX-IN and are transmitted to pins 68 and 69 of a main controller U2 through pins 1 and 4, the main controller U2 transmits operation instructions such as playing, pausing and song cutting to pins 2 and 3 of U3 of the MP3 module through pins 86 and 87 after corresponding operation processing, and the U3 makes corresponding actions (playing music and the like) after receiving the instructions; after receiving a command of U2 through pins 1 and 4, an UX2 chip of the DMX-OUT sends a DMX control command to DMX equipment outside a DMX-OUT seat through pins 6 and 7; the perpetual calendar timing module (DS 3231M) feeds timing information and the like back to pins 58 and 57 of a main controller U2, and the main controller U2 transmits the information of the timing and the like to pins 1, 2, 4 and 8 of U4 through pins 29, 30, 31 and 32 through corresponding software algorithms for recording and storing, or transmits the information to JP5 through pins 33, 34, 35, 36 and 37 for an OLED display circuit to display corresponding time on an OLED screen; when the OELD screen is touched, the OLED display circuit generates corresponding level, the level is acquired and transmitted to pins 8, 9, 10 and 11 of the extension socket JP5 and then transmitted back to pins 90, 91, 92 and 93 of the main controller U2, and at the moment, the main controller U2 sends out corresponding operation instructions through corresponding software programs according to received signals to complete the functional operation of the whole music box; the SD card part is electrically connected with pins 64, 65, 66, 78, 79, 80 and 83 of the main controller U2, and the main controller U2U2 completes operations such as content reading of the inserted SD card through a specific reading protocol, for example, music files in the SD card are read out, and audio signals are sent to a power amplifier loudspeaker or an earphone for playing through the MP3 modules SPK1 and XS 1.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected" and "fixed" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are based on the orientations and positional relationships shown in the drawings and are used for convenience in description and simplicity in operation, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be constructed in a particular operation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims (5)

1. A portable DMX control box circuit with a music playing function comprises a main control circuit and an OLED display circuit used for displaying and operating, wherein the main control circuit comprises a power supply module, a perpetual calendar timing module and an SD card module, and is characterized by further comprising an MCU module, an MP3 playing module, a DMX communication module, an AD acquisition module and a socket interface; the MCU module comprises a main controller U2, a storage circuit U1 and a storage circuit U4, and the MP3 playing module comprises an MP3 module U3 and an indicator light D1; the DMX communication module comprises a DMX-IN module and a DMX-OUT module, the DMX-IN module comprises a 485 communication chip UX1, and the DMX-OUT module comprises a 485 communication chip UX 2; the AD acquisition module comprises a plurality of output interfaces and acquires data through a voltage division signal of a resistor; the main control circuit and the OLED display circuit are electrically connected through the socket interface.

2. The DMX control box circuit with music playing function of claim 1, wherein said DMX-IN module is electrically connected to pins 68 and 69 of said master controller U2 through pins 1 and 4 of said UX 1.

3. The DMX control box circuit with music playing function of claim 2, wherein the pins 86 and 87 of the main controller U2 are electrically connected with the pins 2 and 3 of the MP3 module U3.

4. The DMX control box circuit with music playing function of claim 2, wherein said DMX-OUT module is electrically connected to pins 55 and 56 of said main controller U2 through pins 1 and 4 of said UX 1.

5. The DMX control box circuit with music playing function of claim 1, wherein the MP3 module U3 is provided with a card reading slot of an SD card, and is used for reading songs in a memory card, and realizing the audio output playing function through a speaker interface SPK1 and an earphone interface XS 1.

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