CN217718488U

CN217718488U - Household intelligent central control system with message leaving function

Info

Publication number: CN217718488U
Application number: CN202222205352.3U
Authority: CN
Inventors: 蔡蓝图; 吴文鑫; 何建章
Original assignee: Xiamen Dnake Intelligent Technology Co ltd
Current assignee: Xiamen Dnake Intelligent Technology Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2022-11-01
Anticipated expiration: 2032-08-22

Abstract

The utility model relates to an intelligence house field discloses an intelligent center control system of family with function of leaving a message, including control chip, first power amplifier voice circuit, second power amplifier voice circuit, adopt the sound circuit, stope circuit and LCD touch display screen, first power amplifier voice circuit includes power amplifier chip IC14 and voice horn SPK1, second power amplifier voice circuit includes power amplifier chip IC42 and voice horn SPK2 respectively, power amplifier chip IC14 connection control chip and voice horn SPK1, power amplifier chip IC42 connection control chip and voice horn SPK2, stope circuit connection voice horn SPK1, voice horn SPK2 and control chip, it includes microphone MIC1 to adopt the circuit, microphone MIC1 is connected with control chip, the utility model discloses circuit through stope circuit and adopt the sound circuit sets up has effectively reduced voice noise, the definition of improvement.

Description

Household intelligent central control system with message leaving function

Technical Field

The utility model relates to an intelligence house field, especially a family's intelligence center control system with message function.

Background

With the development of technology, whole house intelligence gradually develops into a technical trend of intelligent home. The main core of the whole house intelligence is the central control screen, the central control screen bears information processing and centralized control of all terminals such as light, an air conditioner, fresh air, floor heating and security sensors in the whole house, and great convenience is provided for users. In the message leaving function of the existing household central control system, the recorded message leaving function is easily influenced by environmental noise when recording, and the recorded message leaving information is not clear.

SUMMERY OF THE UTILITY MODEL

Therefore, a household intelligent central control system with a message leaving function is needed to be provided, and the problem that voice records of an existing message leaving system are not clear is solved.

In order to achieve the above object, the utility model provides a family's intelligence center control system with message function, including control chip, first power amplifier voice circuit, second power amplifier voice circuit and collection sound circuit, first power amplifier voice circuit includes power amplifier chip IC14 and voice loudspeaker SPK1, second power amplifier voice circuit includes power amplifier chip IC42 and voice loudspeaker SPK2 respectively, power amplifier chip IC14 connects control chip and voice loudspeaker SPK1, power amplifier chip IC42 connects control chip and voice loudspeaker SPK2, the collection sound circuit includes electric capacity C159, resistance R123, resistance R124, electric capacity C161, electric capacity C164, electric capacity C162, resistance R125, resistance R126, electric capacity C160, electric capacity C163, electric capacity C165, zener diode TVS2, zener diode TVS3 and microphone MIC1, the capacitor C159 and the resistor R123 are connected with a pin MBIAS of the control chip, the other end of the capacitor C159 is grounded, the other end of the resistor R123 is connected with the resistor R124 and the capacitor C162, the capacitor C162 is connected with the resistor R125 and the resistor R126, the other end of the resistor R126 is grounded, the capacitor C161 and the capacitor C164 are respectively connected with a pin MICIN1P and a pin MICIN1N of the control chip, the other end of the capacitor C161 is connected with the other end of the resistor R124, the capacitor C160, the capacitor C163, the cathode of the voltage stabilizing diode TVS2 and the anode of the microphone MIC1, the other end of the capacitor C160 is grounded, the other end of the capacitor C164 is connected with the other end of the resistor R125, the capacitor C165, the other end of the capacitor C163, the cathode of the voltage stabilizing diode TVS3 and the cathode of the microphone MIC1, the other end of the capacitor C165 is grounded, and the anode of the voltage stabilizing diode TVS2 and the anode of the voltage stabilizing diode TVS3 are grounded.

The technical scheme has the following beneficial effects:

the utility model discloses in, microphone MIC 1's positive negative pole carries out the double-line connection with control chip through electric capacity C161 and electric capacity C164 respectively, compare and walk the line in single-ended signal, the interference killing feature is stronger, the effect of collecting the sound is better, zener diode TVS2 and zener diode TVS3 stabilize the voltage of collecting the sound circuit, play protection circuit's effect, electric capacity C160, electric capacity C163, electric capacity C165 carries out certain filtration to the audio signal that collects the sound circuit, avoid ambient noise's interference, the definition of the pronunciation of having guaranteed the message.

Drawings

Fig. 1 is a partial circuit diagram of a control chip according to an embodiment.

Fig. 2 is a partial circuit diagram of the control chip according to the embodiment.

Fig. 3 is a circuit diagram of the sound collecting circuit according to the embodiment.

Fig. 4 is a circuit diagram of the first power amplifier voice circuit according to the embodiment.

Fig. 5 is a circuit diagram of a second power amplifier voice circuit according to the embodiment.

Fig. 6 is a module connection diagram of the home intelligent central control system according to the embodiment.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1-6, the present embodiment provides a home intelligent central control system with a message leaving function, which includes a control chip, a first power amplifier voice circuit, a second power amplifier voice circuit, a sound collecting circuit and an LCD touch display screen, wherein the first power amplifier voice circuit includes a power amplifier chip IC14 and a voice speaker SPK1, the second power amplifier voice circuit includes a power amplifier chip IC42 and a voice speaker SPK2, the power amplifier chip IC14 is connected to the control chip and the voice speaker SPK1, the power amplifier chip IC42 is connected to the control chip and the voice speaker SPK2, the circuit includes a microphone MIC1, the microphone MIC1 is connected to the control chip, the LCD touch display screen is connected to the control chip, and the LCD touch display screen is AT080TN52. The function of the control chip is touch-controlled through the LCD touch display screen, so that the control of a user is facilitated.

Specifically, the sound collecting circuit further includes a capacitor C159, a resistor R123, a resistor R124, a capacitor C161, a capacitor C164, a capacitor C162, a resistor R125, a resistor R126, a capacitor C160, a capacitor C163, a capacitor C165, a zener diode TVS2, and a zener diode TVS3, where the capacitor C159 and the resistor R123 are connected to a pin MBIAS of the control chip, the other end of the capacitor C159 is grounded, the other end of the resistor R123 is connected to the resistor R124 and the capacitor C162, the capacitor C162 is connected to the resistor R125 and the resistor R126, the other end of the resistor R126 is grounded, the capacitor C161 and the capacitor C164 are connected to a pin MICIN1P and a pin MICIN1N of the control chip, the other end of the capacitor C161 is connected to the other end of the resistor R124, the other end of the capacitor C160, the capacitor C163, the negative electrode of the zener diode TVS2 and the positive electrode of the microphone MIC1, the other end of the capacitor C160 is grounded, the other end of the capacitor C164 is connected to the other end of the resistor R125, the capacitor C165, the negative electrode of the zener diode TVS3 and the positive electrode of the microphone MIC1 are grounded.

The positive electrode and the negative electrode of the microphone MIC1 are respectively connected with the control chip through the capacitor C161 and the capacitor C164 by two wires, compared with single-ended signal wiring, the anti-interference capability is stronger, the sound collecting effect is better, the voltage of the sound collecting circuit is stabilized by the voltage stabilizing diode TVS2 and the voltage stabilizing diode TVS3, the circuit is protected, the capacitor C160, the capacitor C163 and the capacitor C165 carry out certain filtering on the audio signals collected by the sound collecting circuit, the interference of environmental noise is avoided,

further, in order to facilitate production test on whether the sound collecting circuit works, the anode and the cathode of the microphone MIC1 are respectively connected with test points TP9 and TP10.

In this embodiment, the first power amplifier voice circuit further includes a resistor R117, a resistor R118, a capacitor C157, a resistor R122, a capacitor C152, a capacitor C158, a resistor R121, a capacitor C154, a bidirectional zener diode ESD3, and a bidirectional zener diode ESD4, the resistor R117 is connected to a PA _ SHDN pin of the control chip, the other end of the resistor R117 is connected to the resistor R118 and a pin 1 of the power amplifier chip IC14, the other end of the resistor R118 is grounded, the capacitor C157 is connected to a lineutln pin of the control chip, the other end of the capacitor C157 is connected to the resistor R122, the other end of the resistor R122 is connected to a pin 4, a capacitor C158, and a resistor R121 of the power amplifier chip IC14, a pin 7 of the power amplifier chip IC14 is grounded, a pin 2 and a pin 3 of the power amplifier chip IC14 are connected to the capacitor C152, the other end of the capacitor C152 is grounded, a pin 6 of the power amplifier chip IC14 is connected to the capacitor C154 and a power supply, the other end of the capacitor C154 is grounded, an ESD pin 8 of the power amplifier chip IC14 is connected to the voice amplifier chip IC 3 and the positive pole of the voice loudspeaker k1, the voice amplifier chip SPK1, and the other end of the amplifier chip are connected to the loudspeaker C1, and the loudspeaker circuit, and the loudspeaker of the loudspeaker circuit, and the loudspeaker circuit, the loudspeaker circuit are connected to the loudspeaker circuit.

Control chip passes through PA _ SHDN pin control power amplifier chip IC 14's work, control chip carries voice signal to power amplifier chip IC14 in through LINEOTTLN pin, power amplifier chip IC14 amplifies the voice signal, finally carry to voice horn SPK1, broadcast relevant pronunciation by voice horn SPK1, two-way zener diode protect power amplifier circuit, prevent that power amplifier circuit voltage is too high, cause the damage to voice horn SPK 1.

Furthermore, in order to test the power amplifier voice circuit conveniently during production, the anode and the cathode of the voice loudspeaker SPK1 are connected with test points TP7 and TP8 respectively, and the anode and the cathode of the voice loudspeaker SPK2 are connected with test points TP54 and TP55 respectively.

In this embodiment, the types of the power amplifier chip IC14 and the power amplifier chip IC42 are both LM386.

In this embodiment, the model of the control chip is TX1520.

The utility model discloses during the use:

the user controls control chip through LCD touch display screen, during the recording, control chip passes through MBIAS pin control, microphone MIC1 begins work, microphone MIC1 records, voice information passes through MICIN1P and MICIN1N pin and saves to the control chip in, the control chip embeds has clock module, when reacing predetermined time, control chip plays the pronunciation of leaving a message simultaneously through first power amplifier voice circuit and second power amplifier voice circuit, reach the purpose that family's intelligence was left a message.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising 8230; \8230;" or "comprising 8230; \8230;" does not exclude additional elements from existing in a process, method, article, or terminal device that comprises the element. Further, herein, "greater than," "less than," "more than," and the like are understood to exclude the present numbers; the terms "above", "below", "within" and the like are to be understood as including the present number.

Although the embodiments have been described, once the basic inventive concept is known, other changes and modifications can be made to the embodiments by those skilled in the art, so that the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all the modifications of the equivalent structure or equivalent flow path using the contents of the specification and the drawings of the present invention, or directly or indirectly using other related technical fields are also included in the scope of the present invention.

Claims

1. A household intelligent center control system with a message leaving function is characterized by comprising a control chip, a first power amplifier voice circuit, a second power amplifier voice circuit and a sound collecting circuit, wherein the first power amplifier voice circuit comprises a power amplifier chip IC14 and a voice loudspeaker SPK1, the second power amplifier voice circuit comprises a power amplifier chip IC42 and a voice loudspeaker SPK2 respectively, the power amplifier chip IC14 is connected with the control chip and the voice loudspeaker SPK1, the power amplifier chip IC42 is connected with the control chip and the voice loudspeaker SPK2, the sound collecting circuit comprises a capacitor C159, a resistor R123, a resistor R124, a capacitor C161, a capacitor C164, a capacitor C162, a resistor R125, a resistor R126, a capacitor C160, a capacitor C163, a capacitor C165, a voltage stabilizing diode TVS2, a voltage stabilizing diode TVS3 and a microphone MIC1, the capacitor C159 and the resistor R123 are connected with a pin MBIAS of the control chip, the other end of the capacitor C159 is grounded, the other end of the resistor R123 is connected with the resistor R124 and the capacitor C162, the capacitor C162 is connected with the resistor R125 and the resistor R126, the other end of the resistor R126 is grounded, the capacitor C161 and the capacitor C164 are respectively connected with the pin MICIN1P and the pin MICIN1N of the control chip, the other end of the capacitor C161 is connected with the other end of the resistor R124, the capacitor C160, the capacitor C163, the cathode of the voltage stabilizing diode TVS2 and the anode of the microphone MIC1, the other end of the capacitor C160 is grounded, the other end of the capacitor C164 is connected with the other end of the resistor R125, the capacitor C165, the other end of the capacitor C163, the cathode of the voltage stabilizing diode TVS3 and the cathode of the microphone MIC1, the other end of the capacitor C165 is grounded, the anode of the voltage stabilizing diode TVS2 and the anode of the voltage stabilizing diode TVS3 are grounded.

2. The intelligent home central control system with the message leaving function as claimed in claim 1, wherein the positive electrode and the negative electrode of the microphone MIC1 are respectively connected with test points TP9 and TP10.

3. The system as claimed in claim 1, wherein the first voice circuit for power amplification further includes a resistor R117, a resistor R118, a capacitor C157, a resistor R122, a capacitor C152, a capacitor C158, a resistor R121, a capacitor C154, a bidirectional zener diode ESD3, and a bidirectional zener diode ESD4, the resistor R117 is connected to a PA _ SHDN pin of the control chip, the other end of the resistor R117 is connected to the resistor R118 and the pin 1 of the power amplifier chip IC14, the other end of the resistor R118 is grounded, the capacitor C157 is connected to a lineout pin of the control chip, the other end of the capacitor C157 is connected to the resistor R122, the other end of the resistor R122 is connected to the pin 4, the capacitor C158, and the resistor R121 of the power amplifier chip IC14, the pin 7 of the power amplifier chip IC14 is grounded, the pin 2 and the pin 3 of the power amplifier chip IC14 are connected to the capacitor C152, the other end of the capacitor C152 is grounded, the pin 6 of the power amplifier chip IC14 is connected to the capacitor C154 and the power supply, the other end of the capacitor C154 is grounded, the pin 8 of the amplifier chip IC14 is connected to the amplifier IC 3, the amplifier chip is connected to the cathode of the amplifier circuit SPK1, the amplifier circuit of the amplifier circuit, the speaker of the speaker C1, and the speaker of the speaker.

4. The system of claim 3, wherein the testing points TP7 and TP8 are connected to the positive pole and the negative pole of the voice speaker SPK1, respectively, and the testing points TP54 and TP55 are connected to the positive pole and the negative pole of the voice speaker SPK2, respectively.

5. The system of claim 4, wherein the power amplifier chip IC14 and the power amplifier chip IC42 are each LM386 in type.

6. The system as claimed in claim 1, wherein the control chip has a model number TX1520.

7. The system of claim 1, further comprising an LCD touch screen connected to the control chip, wherein the LCD touch screen is AT080TN52.