Time switch circuit

Abstract

The utility model discloses a time control switch circuit, which comprises a sound acquisition circuit, a frequency adjustment circuit, a touch key circuit, a switch circuit and an execution circuit, the input end of the switch circuit is connected with the sound acquisition circuit through the frequency adjustment circuit, and the touch key circuit is connected with the switch circuit. The output end of the switching circuit is connected with the execution circuit, and the sound acquisition circuit is used for acquiring audio signals; the frequency adjusting circuit is used for performing frequency selection on the audio signals acquired by the sound acquisition circuit; the touch key circuit is used for sending a touch signal; and the switching circuit is used for controlling the execution circuit according to the frequency selection signal sent by the frequency adjustment circuit or the touch control signal sent by the touch key circuit. According to the utility model, frequency selection is carried out on the audio signal acquired by the sound acquisition circuit through the frequency adjustment circuit, the time difference between two effective clapping is changed, the palm sound is effectively recognized, no response is made to loud speaking and music, the sound control recognition mode is changed, and residents are prevented from being disturbed.

Description

Technical Field

[0001] The utility model relates to the technical field of smart home, and particularly discloses a time control switch circuit. Background Art

[0002] A voice-activated lamp is a voice-controlled electronic lighting device, which consists of an audio amplifier, a frequency selection circuit, a delay turn-on circuit and a thyristor circuit. Existing corridor voice-activated lamps all identify the loudness of sound through a decibel inductor. However, because voice control is too disturbing to residents, there are few people using this type of corridor induction lamp with this control method now.

[0003] Therefore, the above-mentioned defects existing in the existing corridor voice-activated lamps are technical problems that need to be solved urgently at present. Summary of the Utility Model

[0004] The utility model provides a time control switch circuit, aiming to solve the above-mentioned defects existing in the existing corridor voice-activated lamps.

[0005] The utility model relates to a time control switch circuit, which includes a sound collection circuit, a frequency adjustment circuit, a touch key circuit, a switch circuit and an execution circuit. The input end of the switch circuit is connected to the sound collection circuit through the frequency adjustment circuit. The touch key circuit is connected to the switch circuit, and the output end of the switch circuit is connected to the execution circuit.

[0006] Further, the frequency adjustment circuit includes a voice control chip and a first capacitor connected to the voice control chip.

[0007] Further, both ends of the first capacitor are respectively connected to the fifth pin and the fourth pin of the voice control chip.

[0008] Further, the sound collection circuit includes a microphone, and the microphone is connected to the thirteenth pin of the voice control chip through a second capacitor.

[0009] Further, the switch circuit includes a switching tube.

[0010] Further, the base of the switching tube is connected to the sixth pin of the voice control chip through a first resistor. The collector of the switching tube is connected to the execution circuit, and the emitter of the switching tube is grounded.

[0011] Further, the switching tube adopts an NPN triode, and the model of the NPN triode is 9012.

[0012] Further, the switch circuit includes a relay and a first diode connected to the relay.

[0013] Further, the time control switch circuit further includes a display circuit, and the display circuit is connected to the execution circuit.

[0014] Further, the display circuit includes a light-emitting diode, a second resistor, and a relay switch. The light-emitting diode is connected to the relay switch through the second resistor.

[0015] The beneficial effects achieved by the present utility model are as follows:

[0016] The present utility model provides a time control switch circuit, which adopts a sound acquisition circuit, a frequency adjustment circuit, a touch key circuit, a switch circuit, and an execution circuit. The input end of the switch circuit is connected to the sound acquisition circuit through the frequency adjustment circuit. The touch key circuit is connected to the switch circuit. The output end of the switch circuit is connected to the execution circuit. The sound acquisition circuit is used to acquire audio signals; the frequency adjustment circuit is used to select frequencies for the audio signals acquired by the sound acquisition circuit; the touch key circuit is used to send touch control signals; the switch circuit is used to control the execution circuit according to the frequency selection signals sent by the frequency adjustment circuit or the touch control signals sent by the touch key circuit. The time control switch circuit provided by the present utility model has a low manufacturing cost. By selecting frequencies for the audio signals acquired by the sound acquisition circuit through the frequency adjustment circuit, the time difference between two effective claps is changed, effectively identifying applause, while being unresponsive to loud speech and music, thereby changing the voice control recognition method and avoiding disturbing residents. Description of the Drawings

[0017] Figure 1 is a functional block diagram of a time control switch circuit of the present utility model;

[0018] Figure 2 is a circuit diagram of a time control switch circuit of the present utility model.

[0019] Explanation of the Reference Numerals in the Drawings:

[0020] 10. Sound acquisition circuit; 20. Frequency adjustment circuit; 30. Switch circuit; 40. Execution circuit; 50. Display circuit; 60. Touch key circuit. Detailed Embodiment

[0021] In order to better understand the above technical solution, the following will describe the above technical solution in detail in conjunction with the drawings in the specification and specific embodiments.

[0022] Such as Figure 1 and Figure 2As shown in the figure, the first embodiment of the present utility model proposes a time control switch circuit, which includes a power supply circuit, a sound collection circuit 10, a frequency adjustment circuit 20, a touch button circuit 60, a switch circuit 30, and an execution circuit 40. The input end of the switch circuit 30 is connected to the sound collection circuit 10 through the frequency adjustment circuit 20, the touch button circuit 60 is connected to the switch circuit 30, and the output end of the switch circuit 30 is connected to the execution circuit 40. The sound collection circuit 10 is used to collect audio signals; the frequency adjustment circuit 20 is used to select frequencies for the audio signals collected by the sound collection circuit; the touch button circuit 60 is used to send touch control signals; the switch circuit is used to control the execution circuit 40 according to the frequency selection signal sent by the frequency adjustment circuit 20 or the touch control signal sent by the touch button circuit 60. When the switch circuit 30 receives the frequency selection signal sent by the frequency adjustment circuit 20 or the touch control signal sent by the touch button circuit 60, it controls the execution circuit 40 to act and turn on the voice-activated lamp. In this embodiment, the touch button circuit 60 includes a touch switch S1. The power supply circuit is respectively connected to the sound collection circuit 10, the frequency adjustment circuit 20, the touch button circuit 60, the switch circuit 30, and the execution circuit 40, and is used to supply power to the sound collection circuit 10, the frequency adjustment circuit 20, the touch button circuit 60, the switch circuit 30, and the execution circuit 40 respectively. The power supply circuit includes a transformer, a rectifier, a filter circuit, and a voltage stabilization circuit, and is used to convert alternating current into stable direct current. The sound collection circuit 10, the frequency adjustment circuit 20, the touch button circuit 60, the switch circuit 30, and the execution circuit 40 can be existing circuits. For example, the switch circuit 30 adopts a single-switch control circuit or a double-switch control circuit, which are all within the protection scope of this patent.

[0023] Further, please refer to Figure 1 and Figure 2 In the time control switch circuit proposed in this embodiment, the frequency adjustment circuit 20 includes a voice control chip U2 and a first capacitor C7 connected to the voice control chip U2. In this embodiment, the reaction time of the circuit to signals can be controlled through the first capacitor C7, and by adjusting the capacitance value of the first capacitor C7, the time difference between two effective claps can be changed. Preferably, both ends of the first capacitor C7 are respectively connected to the fifth pin and the fourth pin of the voice control chip U2. The model of the voice control chip U2 is SK-2.

[0024] Preferably, refer to Figure 1 and Figure 2, for the time control switch circuit proposed in this embodiment, the sound collection circuit 10 includes a microphone BM, and the microphone BM is connected to the thirteenth pin of the sound control chip U2 through a second capacitor C4. The switch circuit 30 includes a switching transistor Q1. The base of the switching transistor Q1 is connected to the sixth pin of the sound control chip U2 through a first resistor R5. The collector of the switching transistor Q1 is connected to the relay K in the execution circuit 40K, and the emitter of the switching transistor Q1 is grounded. In this embodiment, the switching transistor Q1 uses an NPN transistor, and the model of the NPN transistor is 9012. The switch circuit 30 includes a relay K and a first diode VD5 connected to the relay K. The model of the relay K is JRC5M. The time control switch circuit further includes a display circuit 50, and the display circuit 50 is connected to the execution circuit 40. The display circuit 50 includes a light-emitting diode VD6, a second resistor R6, and a relay switch K1-1. The light-emitting diode VD6 is connected to the relay switch K1-1 through the second resistor R6. The light-emitting diode VD6 is used to display the suction state of the relay K by using the closing of the relay switch K1-1 in the relay K.

[0025] As Figure 1 and Figure 2 shown, for the time control switch circuit provided in this embodiment, its working principle is as follows:

[0026] The SK-2 sound control chip U2 is a dedicated sound control IC (integrated circuit) with very high reliability and relatively complete functions. The first capacitor C7 is an input frequency adjustment capacitor, which can control the response time of the circuit to signals. Adjusting the capacitance value of the first capacitor C7 can change the time difference between two effective claps. The switching transistor Q1 is used to drive the relay K. When the switching transistor Q1 receives the frequency selection signal sent by the frequency adjustment circuit 20 or the touch signal sent by the touch key circuit 60, it drives the relay K to act and turns on the sound control lamp. When the relay K acts, the relay switch K1-1 closes, and the light-emitting diode VD6 emits light to display the suction state of the relay K.

[0027] Compared with the prior art, the time control switch circuit provided in this embodiment adopts a sound acquisition circuit, a frequency adjustment circuit, a touch key circuit, a switch circuit, and an execution circuit. The input end of the switch circuit is connected to the sound acquisition circuit through the frequency adjustment circuit. The touch key circuit is connected to the switch circuit. The output end of the switch circuit is connected to the execution circuit. The sound acquisition circuit is used to acquire audio signals. The frequency adjustment circuit is used to select frequencies for the audio signals acquired by the sound acquisition circuit. The touch key circuit is used to send touch control signals. The switch circuit is used to control the execution circuit according to the frequency selection signals sent by the frequency adjustment circuit or the touch control signals sent by the touch key circuit. The time control switch circuit provided in this embodiment has a low manufacturing cost. By selecting frequencies for the audio signals acquired by the sound acquisition circuit through the frequency adjustment circuit, the time difference between two effective claps is changed, and applause can be effectively recognized, while it has no response to loud speech and music, thus changing the voice control recognition method and avoiding disturbing residents.

[0028] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concepts. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the present invention. Obviously, those skilled in the art can make various changes and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A time-controlled switch circuit, characterized in that: The invention comprises a sound collection circuit (10), a frequency adjustment circuit (20), a touch key circuit (60), a switch circuit (30) and an execution circuit (40), wherein an input end of the switch circuit (30) is connected to the sound collection circuit (10) via the frequency adjustment circuit (20), the touch key circuit (60) is connected to the switch circuit (30), and an output end of the switch circuit (30) is connected to the execution circuit (40).

2. The time-controlled switch circuit according to claim 1, characterized in that: The frequency adjustment circuit (20) comprises a voice control chip and a first capacitor connected to the voice control chip.

3. The time-controlled switch circuit according to claim 2, characterized in that: Two ends of the first capacitor are connected to the fifth pin of the voice control chip and the fourth pin of the voice control chip respectively.

4. The time-controlled switch circuit according to claim 3, characterized in that: The sound collection circuit (10) comprises a microphone, and the microphone is connected to the thirteenth pin of the sound control chip via a second capacitor.

5. The time-controlled switch circuit according to claim 3, characterized in that: The switch circuit (30) comprises a switch tube.

6. The time-controlled switch circuit according to claim 5, characterized in that: The base of the switch tube is connected to the sixth pin of the voice control chip via a first resistor, the collector of the switch tube is connected to the execution circuit (40), and the emitter of the switch tube is grounded.

7. The time-controlled switch circuit according to claim 6, characterized in that: The switch tube adopts an NPN transistor, and the model of the NPN transistor is 9012.

8. The time-controlled switch circuit according to claim 3, characterized in that: The switch circuit (30) comprises a relay and a first diode connected to the relay.

9. The time-controlled switch circuit according to claim 8, characterized in that: The time-controlled switch circuit further comprises a display circuit (50), wherein the display circuit (50) is connected to the execution circuit (40).

10. The time-controlled switch circuit according to claim 9, characterized in that: The display circuit (50) comprises a light emitting diode, a second resistor and a relay switch, and the light emitting diode is connected to the relay switch via the second resistor.

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