Solar Bluetooth voice prompter

Abstract

The utility model provides a solar Bluetooth voice prompter which comprises a solar power supply circuit, a storage battery, a processing circuit, a power amplifier circuit and a control chip. The solar power supply circuit is connected with the storage battery, the storage battery is respectively connected with the processing circuit and the power amplifier circuit, and the control chip is connected with the processing circuit. According to the utility model, autonomous power supply can be realized, the device can be used after being directly installed in place, and extra wiring, installation and other operations are not needed.

Description

TECHNICAL FIELD

[0001] The utility model relates to safe prompt equipment technical field, concretely relates to a solar energy bluetooth voice prompter. BACKGROUND

[0002] The voice prompter is a device widely used in forest fire prevention and reservoir danger warning fields, which plays a warning effect by broadcasting voice information to the nearby personnel.

[0003] The existing voice prompter cannot realize self-powered, and the equipment has the phenomenon of complex wiring and high installation cost when installing. UTILITY MODEL CONTENT

[0004] In view of the deficiency of prior art, the utility model provides a solar energy bluetooth voice prompter, which can realize self-powered, is immediately put into use after installation, and effectively reduces product installation cost.

[0005] The technical scheme of the utility model is realized as follows:

[0006] A solar energy bluetooth voice prompter, including solar power supply circuit, battery, processing circuit, power amplifier circuit and control chip U1, the solar power supply circuit is connected with the battery, the battery is connected with the processing circuit, power amplifier circuit respectively, the control chip U1 is connected with the processing circuit.

[0007] The further technical scheme of the utility model lies in that the solar power supply circuit includes solar panel, charge management circuit and CN3791 management chip connected in sequence, the CN3791 management chip is connected with the battery.

[0008] The further technical scheme of the utility model lies in that the processing circuit is configured as 3.3V boost-buck circuit, which is used to adjust the input voltage to 3.3V voltage output through boost or buck.

[0009] The further technical scheme of the utility model lies in that the battery is configured as 3.7V lithium battery.

[0010] The further technical scheme of the utility model lies in that the power amplifier circuit is configured as PAM8303D power amplifier chip and peripheral circuit, the PAM8303D power amplifier chip is connected with the battery and control chip U1.

[0011] The further technical scheme of the utility model lies in that it further includes clock circuit, the clock circuit includes PCF8563 control chip and time updating circuit connected, and the clock circuit is connected with control chip U1.

[0012] The further technical scheme of the utility model further relates to a flash lamp circuit, which is connected with the storage battery and the control chip U1.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] The utility model discloses a solar power supply circuit realizes the effect of self -power supply, spares the difficult installation of circuit wiring, charges and discharges through the storage battery, can realize long -term stable voltage output, ensures the subsequent circuit power supply at all times. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced to the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0016] Figure 1 It is the structure block diagram of a solar energy bluetooth voice prompter of the utility model;

[0017] Figure 2 It is the structure schematic diagram of solar power supply circuit in the utility model;

[0018] Figure 3 It is the structure schematic diagram of processing circuit in the utility model;

[0019] Figure 4 It is the structure schematic diagram of power amplifier circuit in the utility model;

[0020] Figure 5 It is the structure schematic diagram of flash lamp circuit in the utility model;

[0021] Figure 6 It is the structure schematic diagram of clock circuit in the utility model;

[0022] Figure 7 It is the structure schematic diagram of human body induction circuit in the utility model.

[0023] Drawing mark: 1-solar power supply circuit;2-storage battery;3-processing circuit;4-power amplifier circuit. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0025] In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", "fourth" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] As shown in Figures 1 to 7 The utility model discloses a solar bluetooth voice prompter, including solar power supply circuit, battery, processing circuit, power amplifier circuit and control chip U1, solar power supply circuit is connected with battery, and battery is connected with processing circuit, power amplifier circuit respectively, and control chip U1 is connected with processing circuit, the utility model adopts the inside processing circuit using switched capacitor voltage multiplier power supply chip to provide the stable power supply for the load of back stage, reduces the influence that voltage fluctuation brings, ensures that back stage load works in reasonable stable voltage interval, and the inside battery directly supplies power to power amplifier module, and then is controlled and instructed to play by control chip U1, control chip U1 is configured as AC6905 chip, and it uses more stable bluetooth master control module AC6905, and the connection distance is upgraded to 12m from the general 4-5m, and can stably transmit data and instruction. Meanwhile, master control module AC6905 is connected with each part in the circuit, detects the state of each part circuit and the information obtained by processing circuit, and is responsible for the operation of control circuit system. The following will be described in detail respectively:

[0028] AsFigure 2 As shown, the solar power supply circuit includes a solar panel, a charge management circuit and a CN3791 management chip connected in sequence, and the CN3791 management chip is connected with the storage battery. The CN3791 management chip has the function of automatically tracking the maximum power point of the solar panel. When the output voltage collected by the solar panel is greater than the set maximum power point voltage, the CN3791 chip starts to charge the storage battery. When the voltage of the solar panel is less than the set value, the CN3791 chip stops directly charging the battery, but uses more stable and accurate devices to make the charging more stable. It can be understood that the set voltage value can be modified by adjusting the proportion of resistors R2 and R7. Preferably, in the present embodiment, the storage battery is configured as a single 3.7V lithium battery. The single lithium battery charge management chip CN3791 can manage the charging of the lithium battery. CN3791 cooperates with a small amount of peripheral devices to perform PWM voltage reduction on the power input from the solar panel, so as to manage the charging of the single lithium battery independently.

[0029] As shown in Figure 3 The processing circuit is configured as a 3.3V step-up and step-down circuit, which is used to adjust the input voltage to 3.3V voltage output through step-up or step-down. The core of the circuit is XA2320B switched capacitor voltage multiplier power chip. When the voltage supplied by the lithium battery is higher than 3.3V, the voltage is reduced through the XA2320B step-up and step-down circuit, and then stably output to the functional module at the back end after being stabilized to 3.3V. When it is lower than 3.3V, it is boosted, and then stably output to the functional module at the back end after being stabilized to 3.3V, and the power supply is accurate and stable.

[0030] As shown in Figure 4 The power amplifier circuit is configured as a PAM8303D power amplifier chip and a peripheral circuit, and the PAM8303D power amplifier chip is connected with the storage battery and the control chip U1. The power amplifier circuit uses an upgraded PAM8303D power amplifier module, which is directly and stably powered by a 3.7V lithium battery, ensures stable power supply, and receives functional instructions and audio inputs from the main control module AC6905. The input audio reaches a 3W stable and noiseless audio output through the PAM8303D power amplifier module.

[0031] As shown in Figure 5 It also includes a clock circuit, which includes a PCF8563 control chip and a time updating circuit connected with each other, and the clock circuit is connected with the control chip U1. It can update the time to the main control module AC6905 in real time, and reduce the influence of time error.

[0032] As shown in Figure 6As shown, the flash lamp circuit is connected with the battery and the control chip U1, wherein the flash lamp circuit comprises a transistor Q4, a transistor Q5 and an LED lamp P6, the base of the transistor Q4 is connected to the 3.3V power supply through a resistor R38, the emitter is grounded, and the collector is connected to the pin 1 of the LED lamp P6; the base of the transistor Q5 is connected to the signal end of the control chip U1 through R39, the emitter is grounded, and the collector is connected to the pin 2 of the LED lamp P6; when the control chip U1 sends a high-level signal, Q5 is turned on. At this time, the current starts from the 3.3V battery, passes through the collector and emitter of Q4, then passes through the LED lamp P6, and finally returns to the ground through the turned-on Q5, forming a loop, and the LED lamp P6 is lit. When the control chip U1 sends a low-level signal, Q5 is cut off, no current passes through the LED lamp P6, and the LED lamp is extinguished.

[0033] Optionally, as shown in the figure, the device further comprises a human body induction circuit connected with the battery and the control chip U1, and when the human body induction circuit senses a human body, the human body induction circuit sends a data instruction to the control chip U1, and then the control chip U1 sends a working instruction to the power amplifier circuit and the flash lamp circuit to perform sound and light prompting; the human body induction module adopts a controllable and adjustable switch, and the sensing distance thereof can be adjusted to 3-12 meters. Figure 7

[0034] The device has the advantages that:

[0035] 1. The device is upgraded on the circuit, realizes low-power processing function, and greatly increases the use time and stabilizes the work of the device.

[0036] 2. The device is provided with a high-efficiency solar panel, which can convert the light energy collected from the field environment into electric energy in real time to supply the device, and the device is simple in installation wiring and low in installation cost, and can work after being fixed and powered on, and is more convenient to install and use.

[0037] 3. According to the market demand, the device is provided with a sound and light device, so that the device realizes a sound and light warning prompt function.

[0038] 4. The device is upgraded and updated in the selection of components, adopts a more advanced chip, so that the connection distance of the Bluetooth is increased from the current 5 meters to 12 meters, and the device can be stably connected at this distance to set the function and issue the basic function instruction.

[0039] 5. In order to change the problem that the device gradually deviates in time after long-time work and causes the device to be abnormal, a real-time clock circuit is added to the circuit, so that the time on the device is synchronized with the actual time.

[0040] ​The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A solar powered Bluetooth voice prompter, characterized in that: It includes a solar power supply circuit, a battery, a processing circuit, a power amplifier circuit and a control chip U1; the solar power supply circuit is connected to the battery, the battery is respectively connected to the processing circuit and the power amplifier circuit, and the control chip U1 is connected to the processing circuit.

2. The solar-powered Bluetooth voice prompter according to claim 1, characterized in that: The solar power supply circuit includes a solar panel, a charging management circuit and a CN3791 management chip connected in sequence, and the CN3791 management chip is connected to the battery.

3. The solar-powered Bluetooth voice prompter according to claim 1, characterized in that: The processing circuit is configured as a 3.3V step-up / step-down circuit, which is used to adjust the input voltage to a 3.3V voltage output by stepping up or stepping down the voltage.

4. The solar-powered Bluetooth voice prompter according to claim 1, characterized in that: The battery is configured as a 3.7V lithium battery.

5. The solar-powered Bluetooth voice prompter according to claim 1, characterized in that: The power amplifier circuit is configured as a PAM8303D power amplifier chip and peripheral circuits. The PAM8303D power amplifier chip is connected to the battery and the control chip U1.

6. The solar-powered Bluetooth voice prompter according to claim 1, characterized in that: It also includes a clock circuit, which includes a connected PCF8563 control chip and a time update circuit. The clock circuit is connected to the control chip U1.

7. The solar-powered Bluetooth voice prompter according to claim 1, characterized in that: It also includes a flash circuit, which is connected to the battery and the control chip U1.

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