CN210579184U

CN210579184U - Solar one-to-many Bluetooth sound circuit and sound

Info

Publication number: CN210579184U
Application number: CN201921162880.7U
Authority: CN
Inventors: 柯钦怀; 连环阳
Original assignee: Fujian Joy Solar Technology Corp
Current assignee: Fujian Joy Solar Technology Corp
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-05-19
Anticipated expiration: 2029-07-23

Abstract

The utility model provides a solar energy bluetooth sound circuit and stereo set one to many, wherein, solar energy bluetooth sound circuit one to many, including first broadcast module, a plurality of second broadcast module, wherein: the first playing module and the second playing module are respectively provided with a solar charging module, a control MCU, a light emitting module and a player; the control MCU is respectively connected with the solar charging module, the light-emitting module and the player; the first playing module is provided with a Bluetooth module and an FM transmitting module which are connected with the MCU controlled by the first playing module; the Bluetooth module can be in communication connection with the control terminal; the second playing module is provided with an FM receiving module connected with the MCU controlled by the second playing module; the FM transmitting module is respectively in communication connection with the plurality of FM receiving modules. The utility model provides a solar energy bluetooth sound circuit to many, energy-concerving and environment-protective has realized wireless transmission, has reached the purpose of a pair of bluetooth music broadcast, does not need to spend a large amount of manual works power cords of arranging again, has saved installation cost.

Description

Solar one-to-many Bluetooth sound circuit and sound

Technical Field

The utility model relates to a stereo set field, in particular to solar energy bluetooth sound circuit and stereo set one to many.

Background

With the progress of society, people are more colorful in life. The singing and dancing as an entertainment form for thousands of years goes deep into the life of people of all groups. However, with the development and progress of science and technology, people have more and more requirements and higher requirements on the performance form and the field of singing and dancing. Sound systems are continuously improved and perfected in response to the needs of people. The method is large enough to meet the field sound reinforcement requirement of tens of thousands of people in singing meetings and small enough to meet the requirements of playing musical instruments and K songs by individual families. Among them, in a housing estate, a yard, a housing estate, a roof, and the like, the design of a sound is indispensable.

The limiting factor is extremely many when using current stereo set, often needs to carry out the setting of arranging of charging power cord, communication connection of electric lines, when needs carry out a plurality of stereo sets installations in places such as district, courtyard, district and roof, the winding displacement work load of power cord, communication electric wire is big, wastes time and energy.

SUMMERY OF THE UTILITY MODEL

For solving the problem mentioned in the above-mentioned background art, the utility model provides a solar energy bluetooth sound circuit in a pair of many and stereo set, wherein, solar energy bluetooth sound circuit in a pair of many, including first broadcast module, a plurality of second broadcast module, wherein:

the first playing module and the second playing module are respectively provided with a solar charging module, a control MCU, a light emitting module and a player; the control MCU is respectively connected with the solar charging module, the light-emitting module and the player;

the first playing module is provided with a Bluetooth module and an FM transmitting module which are connected with the MCU controlled by the first playing module; the Bluetooth module can be in communication connection with the control terminal;

the second playing module is provided with an FM receiving module connected with the MCU controlled by the second playing module;

the FM transmitting module is respectively in communication connection with the FM receiving modules.

Further, the solar charging module comprises a solar panel, a protection module, a voltage stabilizing module and a battery; wherein:

the solar panel is sequentially connected with the protection module, the battery, the voltage stabilizing module and the control MCU; the battery provides electric energy for the first playing module and the second playing module.

Further, the protection module comprises a diode D1, a resistor R21, a resistor R22, a capacitor C20, a protection chip S1 and a MOS transistor Q1, wherein:

the anode of the diode D1 is connected with the solar panel; the cathode of the diode D1 is connected with the anode of the battery and one end of the resistor R21; the other end of the resistor R21 is connected with one end of the capacitor C20 and the VDD end of the protection chip S1; the other end of the capacitor C20 is connected with the cathode of the battery, the VSS end of the protection chip S1 and the S1 end of the MOS transistor Q1; the OD end of the protection chip S1 is connected with the G1 end of the MOS tube Q1; the OC end of the protection chip S1 is connected with the G2 end of the MOS tube Q1; the CSI end of the protection chip S1 is connected with one end of a resistor R22; the other end of the resistor R22 and the S2 end of the MOS transistor Q1 are grounded.

Further, the voltage stabilizing module comprises a voltage stabilizing chip U5, a capacitor C21, a capacitor C22, a capacitor C23, a capacitor C24, a capacitor C25 and an inductor H1, wherein:

the INT end of the voltage stabilizing chip U5, one end of the capacitor C22 and one end of the capacitor C23 are connected with the anode of the battery; the OUT end of the voltage-stabilizing chip U5 is connected with one end of a capacitor C21, one end of a capacitor C24 and one end of an inductor H1; the other end of the inductor H1 is connected with one end of a capacitor C25; the other end of the capacitor C22, the other end of the capacitor C23, the other end of the capacitor C21, the other end of the capacitor C24 and the other end of the capacitor C25 are all grounded.

Further, the model of the control MCU is EM78F 668.

Further, the light emitting module comprises a lamp bead module, a first resistor, a second resistor, a resistor R24, a resistor R25, a resistor R26, a resistor R28, a resistor R29, a capacitor C29, a first triode and a triode Q6, wherein:

the lamp bead module is respectively connected with the first triodes through the first resistors; the first triode is connected with the control MCU through a second resistor;

one end of the resistor R24 is connected with the anode of the solar panel; the other end of the resistor R24, one end of the capacitor C29 and one end of the resistor R28 are all connected with the control MCU; one end of the resistor R25 is connected with the negative electrode of the solar panel; the other end of the resistor R25 is connected with one end of a resistor R29 and the base electrode of a triode Q6; the collector of the triode Q6 is connected with the control MCU through a resistor R26; the other end of the capacitor C29, the other end of the resistor R29, one end of the resistor R29 and an emitter of the triode Q6 are all grounded.

Further, the device also comprises a switch module, wherein the switch module comprises a switch K1 and a switch K2, and the switch K1 and the switch K2 are respectively connected with the control MCU; the switch K1 sets the working mode of the light-emitting module; the switch K2 sets the FM transmit frequency.

Further, the bluetooth module adopts a bluetooth chip of an AC6925C model; the FM transmitting module adopts a QN8027 type FM transmitting chip; the FM receiving module adopts a QN8035 model FM receiving chip.

Furthermore, the player is connected with the Bluetooth module or the FM receiving module through a power amplifier circuit respectively.

The utility model discloses provide a stereo set in addition, adopt as above arbitrary solar energy a to many bluetooth sound circuit.

The utility model provides a solar one-to-many Bluetooth sound circuit, combine FM transmission and receiving module through the bluetooth module in first broadcast module, a plurality of second broadcast modules, realized wireless transmission, reached the purpose of one-to-many Bluetooth music broadcast, do not need to spend a large amount of manual work power cords of arranging again, saved installation cost; in addition, the solar charging module is used for supplying power, so that the purposes of energy conservation and environmental protection are achieved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a connection block diagram of a first playing module and a second playing module provided by the present invention;

FIG. 2 is a block diagram of a second playback module;

FIG. 3 is a schematic diagram of audio playback operation;

FIG. 4 is a circuit diagram of a protection module;

FIG. 5 is a circuit diagram of the control MCU connection;

FIG. 6 is a circuit diagram of a light module control circuit;

FIG. 7 is a circuit diagram of a lamp bead module;

FIG. 8 is a circuit diagram of a voltage regulator module;

FIG. 9 is a circuit diagram of a Bluetooth chip connection;

FIG. 10 is a power amplifier circuit diagram of the player;

FIG. 11 is a circuit diagram of an FM transmitter module;

FIG. 12 is a circuit diagram of an FM receiving module;

FIG. 13 is a switch module circuit diagram;

fig. 14 is a circuit diagram of a sampling module.

Detailed Description

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is noted that the terms "first," "second," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The terms "couple" or "couples" and the like are not restricted to physical or mechanical connections, but may include electrical connections, optical connections, and the like, whether direct or indirect.

The utility model provides a solar energy bluetooth sound circuit and stereo set one to many, wherein, solar energy bluetooth sound circuit one to many, including first broadcast module, a plurality of second broadcast module, wherein:

In specific implementation, as shown in fig. 1, fig. 2 and fig. 3, the solar one-to-many bluetooth sound circuit includes a first playing module and a plurality of second playing modules, wherein:

The sound playing mode is as follows:

the first playing module is in communication connection with the mobile phone by using a Bluetooth chip U1, converts a digital signal transmitted by the mobile phone into an audio signal, outputs the audio signal by using an IO port, and inputs the signal into an FM chip while receiving a power amplifier IC to play music; the Bluetooth audio signal output has two types, one is single track, one is double track (stereo), the program of the single chip microcomputer is selectable, the Bluetooth inputs the audio signal into a QN8027 frequency modulation emission IC, the single chip microcomputer is used for setting a fixed frequency in a (60MHZ-108MHZ), and the 60MHZ-108MHZ is the FM band coverage of all parts of the world; the FM is used for transmitting, and the second playing module uses the FM for receiving; the second playing module receives a signal sent by FM, the MCU of the second playing module can set QN8035 receiving frequency, the frequency is matched with the host before the MCU is used, then the received signal is input to the power amplifier IC, and then the signal is played by a loudspeaker; therefore, large-area sound power amplification work is realized through Bluetooth and FM communication.

The player is a loudspeaker; the light-emitting module adopts an LED lamp bead; the solar panel is adopted to realize high efficiency and energy saving, and a lithium battery is adopted to charge and store electricity; controlling the MCU: controlling the charging and discharging of a product battery, controlling Bluetooth, controlling FM (frequency modulation) work, and controlling player power amplification and LED (light emitting diode) work; since FM signals are a global, open platform; in this embodiment, the bluetooth signal and the FM frequency modulation signal are used in combination; the Bluetooth module is communicated with a control terminal (such as a mobile phone), receives signals sent by the control terminal, and then sends the signals to a plurality of FM receiving modules through the FM transmitting module, so that large-area sound control playing is realized.

Preferably, the solar charging module comprises a solar panel, a protection module, a voltage stabilizing module and a battery; wherein:

In specific implementation, as shown in fig. 4, the protection module includes a diode D1, a resistor R21, a resistor R22, a capacitor C20, a protection chip S1, and a MOS transistor Q1, where: the model number of the protection chip S1 in the embodiment is R5408; the MOS tube Q1 is AO 8250;

In this embodiment, through the circuit design of the protection module, overcharge and overdischarge protection is realized, and the problem of overcharge or overdischarge of the battery is avoided.

In specific implementation, as shown in fig. 8, the voltage regulation module includes a voltage regulation chip U5, a capacitor C21, a capacitor C22, a capacitor C23, a capacitor C24, a capacitor C25, and an inductor H1, where: the model number of the voltage stabilizing chip U5 in the embodiment is YX 5606;

In this embodiment, through the circuit design of the voltage stabilizing module, a stable 3.3V voltage is provided for the control MCU, and the normal operation of the control MCU is ensured.

Preferably, the control MCU is of the type EM78F 668.

Specifically, as shown in fig. 11, the FM transmission module in this embodiment includes an FM transmission chip U2, a resistor R1, a resistor R2, a capacitor C9, a capacitor C10, a capacitor C13, a capacitor C14, a capacitor C15, a capacitor C16, an inductor L1, an FM transmission port, and a crystal G1; the FM transmitting module adopts a QN8027 type FM transmitting chip; the FM transmitting chip U2 is respectively connected with the control MCU through a resistor R1, a resistor R2, a capacitor C10 and a capacitor C13; the FM transmitting chip U2 is grounded through a capacitor C14; the crystal oscillator G1 and the FM transmitting port are respectively connected with the FM transmitting chip U2; an inductor L1 is connected to the FM transmitting port; the capacitor C9 is connected between the VCC pin and the AGND pin of the FM transmitting chip U2.

Specifically, as shown in fig. 12, in this embodiment, the FM receiving module includes an FM receiving chip U6, a resistor R30, a resistor R31, a resistor R32, a capacitor C30, a capacitor C31, a capacitor C32, a capacitor C33, an inductor L2, and an FM signal receiving terminal ANT 1; the FM receiving module adopts a QN8035 type FM receiving chip; the INT pin of the FM receiving chip U6 is connected with a power supply through a resistor R32; the XLCK pin of the FM receiving chip U6 is connected with an XLCK end of the control MCU through a capacitor C30; the second SCL pin of the FM receiving chip U6 is connected with one end of a resistor R31 and the SCL end of the control MCU; the SDA pin of the FM receiving chip U6 is connected with one end of a resistor R30 and the SDA end of the control MCU; the other end of the resistor R31 and the other end of the resistor R30 are both connected with a power supply; a RF1 pin of the FM receiving chip U6 is connected with an FM signal receiving terminal ANT1 of the inductor L2 through a capacitor C31 in sequence; the first ARO pin of the FM receiving chip U6 is connected with the DACL end of the control MCU through an inductor C32; the third pin of the FM receiving chip U6 is grounded through a capacitor C33.

In specific implementation, as shown in fig. 9, the bluetooth module in this embodiment includes; the Bluetooth module comprises a Bluetooth chip U1, a capacitor C1, a capacitor C4, a capacitor C5, a capacitor C7, a capacitor C8, a capacitor C11, a capacitor C12, a resistor R4, a resistor R3, a resistor R5, a crystal oscillator Y1 and a signal transmitting terminal BT-ANT 1; the Bluetooth chip U1 adopts a Bluetooth chip of AC6925C model; the 9 th pin and the 10 th pin of the Bluetooth chip U1 are grounded through a capacitor C7 and a capacitor C11 respectively; the 11 th pin of the Bluetooth chip U1 is grounded; the 12 th pin of the Bluetooth chip U1 is connected with the player and the control MCU through a resistor R4; the 12 th pin of the Bluetooth chip U1 is grounded through a capacitor C12 with a resistor R4; a crystal oscillator Y1 is connected between the 24 th pin and the 23 rd pin of the Bluetooth chip U1; the 20 th pin of the Bluetooth chip U1 is connected with a signal transmitting terminal BT-ANT1 through a capacitor C4; the 20 th pin of the Bluetooth chip U1 is grounded through a capacitor C1 with a capacitor C4; the 19 th pin and the 18 th pin of the Bluetooth chip U1 are grounded through a capacitor C5 and a capacitor C8 respectively; and the 15 th pin of the Bluetooth chip U1 is connected with the 13 th pin of the Bluetooth chip U1 through a resistor R5 and a resistor R3 in sequence.

During the concrete implementation, as shown in fig. 6, protruding 7, the light emitting module includes lamp pearl module, first resistance, second resistance, resistance R24, resistance R25, resistance R26, resistance R28 and resistance R29, electric capacity C29, first triode, triode Q6, wherein: the first resistor in the embodiment comprises a resistor R13, a resistor R14, a resistor R15 and a resistor R16; the second resistor comprises a resistor R17, a resistor R18, a resistor R19 and a resistor R20; the first triode comprises a triode Q1, a triode Q2, a triode Q3 and a triode Q4; the lamp bead module adopts a 5050-RGBW LED lamp group;

the lamp bead module is sequentially connected with the collector electrodes of the triode Q1, the triode Q2, the triode Q3 and the triode Q4 through a resistor R13, a resistor R14, a resistor R15 and a resistor R16; the base electrodes of the triode Q1, the triode Q2, the triode Q3 and the triode Q4 are connected with the control MCU through a second resistor;

one end of the resistor R24 is connected with the anode of the solar panel; the other end of the resistor R24, one end of the capacitor C29 and one end of the resistor R28 are all connected with the control MCU; one end of the resistor R25 is connected with the negative electrode of the solar panel; the other end of the resistor R25 is connected with one end of a resistor R29 and the base electrode of a triode Q6; the collector of the triode Q6 is connected with the control MCU through a resistor R26; the other end of the capacitor C29, the other end of the resistor R29, one end of the resistor R29 and an emitter of the triode Q6 are all grounded;

the device also comprises a switch module, wherein the switch module comprises a switch K1 and a switch K2, and the switch K1 and the switch K2 are respectively connected with the control MCU; the switch K1 sets the working mode of the light-emitting module; the switch K2 sets the FM transmit frequency.

In this embodiment, the daytime and the night are judged by collecting the voltages at the two ends of the solar panel, judging the daytime and the night by using the triode base-level breakover voltage of 0.7V and regulating the voltages by using R25 and R29, waking up the single chip microcomputer, and then collecting the specific voltage of the SOLARADC to control the LED switch on the control MUC. The LED operating mode and lighting effect may be selected using the KET1 switch. The bright lamp can be in a mode of long bright white light, long bright colorful light, gradual change colorful light and the like.

Preferably, the player is connected with the Bluetooth module or the FM receiving module through a power amplifier circuit respectively.

In specific implementation, as shown in fig. 10, the player is connected to the bluetooth module or the FM receiving module through the power amplifier circuit. The power amplifier circuit comprises a power amplifier chip U3, a resistor R6, a resistor R8, a resistor R11, a resistor R12, a capacitor C17, a capacitor C18, a power amplifier chip U3, a horn J1 or a horn J2; the model of the power amplifier chip U3 is LTK 8002D; the loudspeaker J1 is a player of a first playing module; the loudspeaker J2 is a player of a second playing module; one end of the resistor R8 is respectively connected with the Bluetooth module and the control MCU; the other end of the resistor R8 is connected with a first pin of a power amplifier chip U3; the first pin of the power amplifier chip U3 is also connected with a battery through a resistor R6; the sixth pin of the power amplifier chip U3 is grounded through a capacitor C18; the second pin and the third pin of the power amplifier chip U3 are both grounded through a capacitor C17; one end of the capacitor 19 is connected with a fourth pin of the power amplifier chip U3 sequentially through the capacitor C19 and the resistor R11; the fourth pin of the power amplifier chip U3 is connected with the fifth pin of the power amplifier chip U3 and the horn J1 or the horn J2 through a resistor R12; the other end of the capacitor 19 is connected as follows:

the other end of the capacitor C19 in the first playing module is connected with a capacitor C10 in an FM transmitting module;

the capacitor C19 is connected with the capacitor C4 of the FM receiving module at the other end of the second playing module.

Preferably, the solar one-to-many bluetooth sound circuit further comprises a sampling module, wherein the sampling module comprises a resistor R23, a resistor R27 and a capacitor C28; one end of the resistor R23 is connected with the battery, and the other end of the resistor R27 and one end of the capacitor C28 are connected with the control MCU; the other end of the resistor R27 and the other end of the capacitor C28 are both grounded. In this embodiment, the voltage of battery is gathered through the circuit design of sampling module, closes the product in advance when the battery is about not to have the electricity to the protection product.

The utility model provides a sound, adopt as above arbitrary solar energy a to many bluetooth sound circuit.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a solar energy bluetooth sound circuit of one-to-many, its characterized in that includes first broadcast module, a plurality of second broadcast module, wherein:

2. The solar one-to-many bluetooth sound circuit of claim 1, wherein: the solar charging module comprises a solar panel, a protection module, a voltage stabilizing module and a battery; wherein:

3. The solar one-to-many bluetooth sound circuit of claim 2, wherein: the protection module comprises a diode D1, a resistor R21, a resistor R22, a capacitor C20, a protection chip S1 and a MOS tube Q1, wherein:

4. The solar one-to-many bluetooth sound circuit of claim 2, wherein: the voltage stabilizing module comprises a voltage stabilizing chip U5, a capacitor C21, a capacitor C22, a capacitor C23, a capacitor C24, a capacitor C25 and an inductor H1, wherein:

5. The solar one-to-many bluetooth sound circuit of claim 1, wherein: the model of the control MCU is EM78F 668.

6. The solar one-to-many bluetooth sound circuit of claim 1, wherein: the light emitting module comprises a lamp bead module, a first resistor, a second resistor, a resistor R24, a resistor R25, a resistor R26, a resistor R28, a resistor R29, a capacitor C29, a first triode and a triode Q6, wherein:

7. The solar one-to-many bluetooth sound circuit of claim 6, wherein: the device also comprises a switch module, wherein the switch module comprises a switch K1 and a switch K2, and the switch K1 and the switch K2 are respectively connected with the control MCU; the switch K1 sets the working mode of the light-emitting module; the switch K2 sets the FM transmit frequency.

8. The solar one-to-many bluetooth sound circuit of claim 1, wherein: the Bluetooth module adopts a Bluetooth chip of an AC6925C model; the FM transmitting module adopts a QN8027 type FM transmitting chip; the FM receiving module adopts a QN8035 model FM receiving chip.

9. The solar one-to-many bluetooth sound circuit of claim 8, wherein: the loudspeaker is connected with the Bluetooth module or the FM receiving module through the power amplifier circuit respectively.

10. A sound box, characterized in that a solar one-to-many bluetooth sound circuit according to any of claims 1-9 is used.