CN210202127U

CN210202127U - Small night lamp control circuit with IOT communication function

Info

Publication number: CN210202127U
Application number: CN201920460054.4U
Authority: CN
Inventors: Kan Yang; 杨侃
Original assignee: Jiangsu Chuang Pin Industrial Design Co Ltd
Current assignee: Jiangsu Chuang Pin Industrial Design Co Ltd
Priority date: 2019-04-04
Filing date: 2019-04-04
Publication date: 2020-03-27
Anticipated expiration: 2029-04-04

Abstract

The utility model relates to a small night lamp control circuit with IOT communication function, which comprises a main control chip, an LED switch circuit and a 2.4G communication circuit, wherein the LED switch circuit and the 2.4G communication circuit are connected on the main control chip; the 2.4G communication circuit comprises a communication chip and a crystal oscillator circuit; a power supply current data pin of the communication chip is connected with a first data input/output pin of the main control chip; a power supply current clock signal pin of the communication chip is connected with a second data input/output pin of the main control chip; the LED switch circuit comprises an LED and a triode; the base electrode of the triode is connected with a third data input/output pin of the main control chip; the collector of the triode is connected with the LED in series; the emitter of the triode is grounded. The utility model discloses be suitable for and install in thing networking systems, as a component of whole intelligent house, the user can use smart machine control LED such as cell-phone, flat board to open, also can be through opening other electrical apparatus in the intelligent house thing networking, indirectly open LED, convenient to use.

Description

Small night lamp control circuit with IOT communication function

Technical Field

The utility model relates to an electronic circuit field, concretely relates to little night-light control circuit with IOT communication function.

Background

Compared with a common lamp, the small night lamp has soft light, is suitable for being used at night, is particularly suitable for families caring children, old people and patients, and cannot influence other family members when the night lamp is used for a plurality of times. In the prior art, small night lamps are quite popular, and a plurality of products are involved in the small night lamps with intelligent control technology. However, in the prior art, the technology of the small night lamp which is suitable for being connected into the internet of things and interacts with other smart homes is less.

When getting up at midnight to take care of children, old people and patients, the situations are often complicated, and other household appliances need to be turned on after the lamp is turned on. For example, in the context of a child who is crying and screaming, a small night light may be turned on, followed by a need to soak milk, shake a crib, heat a wet wipe, etc., and a nursing mother may need to suck milk. In such a cumbersome situation, turning on the various devices one by one is prone to confusion and error.

IOT refers to the Internet of Things, which is called Internet of Things, is an Internet connected with Things, can connect various daily necessities to the network, and is convenient for the life of people. Accordingly, there is a need for a small night light that can be connected to the internet of things network to avoid the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model discloses a little night-light control circuit with IOT communication function.

The utility model discloses the technical scheme who adopts as follows:

a small night lamp control circuit with an IOT communication function comprises a main control chip, an LED switch circuit and a 2.4G communication circuit, wherein the LED switch circuit and the 2.4G communication circuit are connected to the main control chip; the 2.4G communication circuit comprises a communication chip and a crystal oscillator circuit; a circuit common grounding pin of the communication chip is grounded; a power supply current data pin of the communication chip is connected with a first data input/output pin of the main control chip; a power supply current clock signal pin of the communication chip is connected with a second data input/output pin of the main control chip; an antenna pin of the communication chip is connected with the RF antenna; an external crystal oscillator pin of the communication chip is connected with a crystal oscillator signal output end of the crystal oscillator circuit; the LED switch circuit comprises an LED and a triode; the base electrode of the triode is connected with a third data input/output pin of the main control chip; the collector of the triode is connected with the LED in series; the emitter of the triode is grounded.

The further technical scheme is as follows: the main control chip is a chip with a Bluetooth function.

The further technical scheme is as follows: the device also comprises a vibration sensing circuit; the vibration sensing circuit comprises a vibration sensor; and the signal output end of the vibration sensor is connected with a fourth data input/output pin of the main control chip.

The further technical scheme is as follows: the model of the main control chip is NRF 51802; a fifth pin of the main control chip is a third data input and output pin; a seventh pin of the main control chip is a first data input and output pin; the eighth pin of the main control chip is a second data input and output pin; the model of the communication chip is LT 8988; a second pin of the communication chip is a circuit common grounding pin; a third pin of the communication chip is a power supply current data pin; a fourth pin of the communication chip is a power supply current clock signal pin; a sixth pin of the communication chip is an antenna pin; a first pin of the communication chip is an external crystal oscillator pin; the second pin of the communication chip is grounded; the third pin of the communication chip is connected with the seventh pin of the main control chip; the third pin of the communication chip is connected with the eighth pin of the main control chip; a sixth pin of the communication chip is connected with the RF antenna; a first pin of the communication chip is connected with a crystal oscillator signal output end of the crystal oscillator circuit; and the base electrode of the triode is connected with the fifth pin of the main control chip.

The further technical scheme is as follows: the device also comprises a vibration sensing circuit; the vibration sensing circuit comprises a vibration sensor; a sixth pin of the main control chip is a fourth data input/output pin; and the signal output end of the vibration sensor is connected with a sixth pin of the main control chip.

The further technical scheme is as follows: the model of the vibration sensor is SW-18020P.

The further technical scheme is as follows: the LED switch circuit further comprises a first resistor, a second resistor and a third resistor; the first end of the first resistor is connected with a power supply of the LED switch circuit; the second end of the first resistor is connected with the anode of the LED; the negative electrode of the LED is connected with the collector electrode of the triode; the base electrode of the triode is connected with the first end of the second resistor; the second end of the second resistor is connected with a third data input/output pin of the control chip; the first end of the third resistor is connected with the base electrode of the triode; the second end of the third resistor is connected with the emitter of the triode.

The further technical scheme is as follows: the model of the triode is D882.

The utility model has the advantages as follows:

1. the utility model discloses an used the main control chip who has bluetooth module among the control circuit, conveniently used the mobile device, long-range opening such as cell-phone, panel computer can make things convenient for people's life greatly under the condition that needs to rise at night.

2. The utility model discloses a be connected with 2.4G communication circuit on the main control chip, can send the 2.4G signal after receiving main control chip's control signal, interactive with other internet of things equipment, under the multiple domestic appliance's of needs concurrent operation the condition, avoided the scene in disorder of hand and foot.

3. The utility model is particularly suitable for families needing to care children, old people and patients. For example, in the scene that the child needs to be cared for, the small night lamp can interact with various devices such as a breast pump, a cradle, a milk warmer, a wet tissue heater and the like, and is started together, so that the process of caring for the child is greatly simple and convenient, and a novice mother can not be in a mess.

Drawings

Fig. 1 is a block diagram of the present invention.

Fig. 2 is a circuit diagram of the main control chip.

FIG. 3 is a diagram of a debug interface of the main control chip.

Fig. 4 is a circuit diagram of a communication chip.

Fig. 5 is a circuit diagram of a crystal oscillator circuit.

Fig. 6 is a circuit diagram of an LED switch circuit.

Fig. 7 is a circuit diagram of a vibration sensing circuit.

Detailed Description

The following describes a specific embodiment of the present embodiment with reference to the drawings.

Fig. 1 is a block diagram of the present invention. As shown in FIG. 1, the night light control circuit with IOT communication function comprises a main control chip, an LED switch circuit connected to the main control chip and a 2.4G communication circuit. The main control chip is used for receiving the 2.4G signal transmitted by the 2.4G communication circuit and outputting a control signal to control the LED switch circuit to start working. Preferably, the main control chip is further connected with a vibration sensing circuit. The vibration sensing circuit can sense the vibration in the surrounding environment and transmit a vibration signal to the main control chip, and the main control chip outputs a control signal to control the LED switch circuit to start working.

Specifically, the 2.4G communication circuit comprises a communication chip and a crystal oscillator circuit. The circuit common ground pin of the communication chip is grounded. The power supply current data pin of the communication chip is connected with the first data input/output pin of the main control chip. And a power supply current clock signal pin of the communication chip is connected with a second data input/output pin of the main control chip. The antenna pin of the communication chip is connected with the RF antenna and receives 2.4G signals sent from the outside. And an external crystal oscillator pin of the communication chip is connected with a crystal oscillator signal output end of the crystal oscillator circuit. The LED switch circuit comprises an LED and a triode. And the base electrode of the triode is connected with a third data input/output pin of the main control chip. And the collector of the triode is connected with the LED in series. The emitter of the triode is grounded.

After the LED switch circuit receives the control signal of the main control chip, the base electrode of the triode becomes high level, the collector electrode and the emitter electrode of the triode are connected, the LED is connected into the power supply circuit, and the LED shines.

Preferably, main control chip selects the main control chip who has bluetooth function, then main control chip can be through receiving bluetooth signal, control circuit work, then the operator can use mobile device, for example, little night-light is opened to long-range such as smart mobile phone, panel computer.

Fig. 2 is a circuit diagram of the main control chip. FIG. 3 is a diagram of a debug interface of the main control chip.

As shown in fig. 2 and 3, in the present embodiment, the model of the main control chip U1 is NRF 51802. The main control chip U1 has a plurality of data input/output pins. The fifth pin of the main control chip U1 is a third data input/output pin. The seventh pin of the main control chip U1 is a first data input/output pin. The eighth pin of the main control chip U1 is a second data input/output pin. Fig. 3 is a diagram of a debug interface of the main control chip, and the connection terminal CON shown in fig. 3 is connected to the twenty-third pin and the twenty-fourth pin of the main control chip U1 for testing and adjusting functions of the main control chip U1 and circuits.

Fig. 4 is a circuit diagram of a communication chip. Fig. 5 is a circuit diagram of a crystal oscillator circuit. As shown in fig. 4 and 5, in the present embodiment, the communication chip U3 has a model LT 8988. The second pin of the communication chip U3 is a circuit common ground pin. The third pin of the communication chip U3 is a power supply current data pin. The fourth pin of the communication chip U3 is a supply current clock signal pin. The sixth pin of the communication chip U3 is an antenna pin. The first pin of the communication chip U3 is an external crystal oscillator pin and is connected to a crystal oscillator signal output terminal of the crystal oscillator circuit shown in fig. 5. The second pin of the communication chip U3 is grounded.

Referring to fig. 2 and 4, the third pin of the communication chip U3 is connected to the seventh pin of the main control chip U1 for transmitting rf data signals. The third pin of the communication chip U3 is connected to the eighth pin of the main control chip U1 for transmitting RF clock signals. The sixth pin of the communication chip U3 is connected to the RF antenna U4 for receiving 2.4G signals transmitted from the outside.

The base electrode of the triode is connected with the fifth pin of the main control chip U1, the main control chip U1 transmits a control signal to the triode, and the voltage of the base electrode of the triode is controlled through high and low levels, so that the LED switch circuit is controlled to be turned on or turned off.

Fig. 6 is a circuit diagram of an LED switch circuit. As shown in fig. 6, the LED switch circuit further includes a first resistor R1, a second resistor R2, and a third resistor R3, a first end of the first resistor R1 is connected to the power VCC of the LED switch circuit, a second end of the first resistor R1 is connected to an anode of the LED D, a cathode of the LED D is connected to a collector of the transistor Q, a base of the transistor Q is connected to a first end of the second resistor R2, a second end of the second resistor R2 is connected to a third data input/output pin of the main control chip U1, a first end of the third resistor R3 is connected to a base of the transistor Q, and a second end of the third resistor R3 is connected to an emitter of the transistor Q. The base electrode of the triode Q receives the high-low level change of the control signal of the main control chip U1, and the triode Q can be turned on or turned off along with the control signal, so that the LED D is powered on or powered off, and the brightness and darkness of the LED D are controlled.

Fig. 7 is a circuit diagram of a vibration sensing circuit. The vibration sensing circuit includes a vibration sensor SW 1; the sixth pin of the main control chip U1 is a fourth data input/output pin; the signal output end of the vibration sensor SW1 is connected to the sixth pin of the main control chip U1. In the present embodiment, the vibration sensor SW1 is model SW-18020P. The vibration switch senses the vibration of the surrounding environment and transmits the vibration to the main control chip U1.

The main control chip U1 can receive the bluetooth signal and open, or through 2.4G communication circuit, receive the 2.4G signal of other intelligent control equipment and open, also can receive vibration sensor SW 1's vibration signal and open, be suitable for and install in the thing networking systems, as a component of whole intelligent house, the user can use the cell-phone, smart machine control LEDD such as dull and stereotyped opens, also can be through opening other electrical apparatus in the intelligent house thing networking, indirectly open LED D, high durability and convenient use.

The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made without departing from the basic structure of the invention.

Claims

1. The utility model provides a little night-light control circuit with IOT communication function which characterized in that: the LED communication circuit comprises a main control chip, an LED switch circuit and a 2.4G communication circuit, wherein the LED switch circuit and the 2.4G communication circuit are connected to the main control chip; the 2.4G communication circuit comprises a communication chip and a crystal oscillator circuit; a circuit common grounding pin of the communication chip is grounded; a power supply current data pin of the communication chip is connected with a first data input/output pin of the main control chip; a power supply current clock signal pin of the communication chip is connected with a second data input/output pin of the main control chip; an antenna pin of the communication chip is connected with the RF antenna; an external crystal oscillator pin of the communication chip is connected with a crystal oscillator signal output end of the crystal oscillator circuit; the LED switch circuit comprises an LED and a triode; the base electrode of the triode is connected with a third data input/output pin of the main control chip; the collector of the triode is connected with the LED in series; the emitter of the triode is grounded.

2. The small night light control circuit with IOT communication capability of claim 1, wherein: the main control chip is a chip with a Bluetooth function.

3. The small night light control circuit with IOT communication capability of claim 1, wherein: the device also comprises a vibration sensing circuit; the vibration sensing circuit comprises a vibration sensor; and the signal output end of the vibration sensor is connected with a fourth data input/output pin of the main control chip.

4. The small night light control circuit with IOT communication capability of claim 1, wherein: the model of the main control chip is NRF 51802; a fifth pin of the main control chip is a third data input and output pin; a seventh pin of the main control chip is a first data input and output pin; the eighth pin of the main control chip is a second data input and output pin; the model of the communication chip is LT 8988; a second pin of the communication chip is a circuit common grounding pin; a third pin of the communication chip is a power supply current data pin; a fourth pin of the communication chip is a power supply current clock signal pin; a sixth pin of the communication chip is an antenna pin; a first pin of the communication chip is an external crystal oscillator pin; the second pin of the communication chip is grounded; the third pin of the communication chip is connected with the seventh pin of the main control chip; the third pin of the communication chip is connected with the eighth pin of the main control chip; a sixth pin of the communication chip is connected with the RF antenna; a first pin of the communication chip is connected with a crystal oscillator signal output end of the crystal oscillator circuit; and the base electrode of the triode is connected with the fifth pin of the main control chip.

5. The small night light control circuit with IOT communication capability of claim 4, wherein: the device also comprises a vibration sensing circuit; the vibration sensing circuit comprises a vibration sensor; a sixth pin of the main control chip is a fourth data input/output pin; and the signal output end of the vibration sensor is connected with a sixth pin of the main control chip.

6. A small night light control circuit with IOT communication capability as claimed in claim 3 or claim 5 wherein: the model of the vibration sensor is SW-18020P.

7. The small night light control circuit with IOT communication capability of claim 1, wherein: the LED switch circuit further comprises a first resistor, a second resistor and a third resistor; the first end of the first resistor is connected with a power supply of the LED switch circuit; the second end of the first resistor is connected with the anode of the LED; the negative electrode of the LED is connected with the collector electrode of the triode; the base electrode of the triode is connected with the first end of the second resistor; the second end of the second resistor is connected with a third data input/output pin of the control chip; the first end of the third resistor is connected with the base electrode of the triode; the second end of the third resistor is connected with the emitter of the triode.

8. A small night light control circuit with IOT communication capability as in claim 1 or claim 7, wherein: the model of the triode is D882.