Intelligent induction lighting circuit

Abstract

According to the intelligent induction lighting circuit provided by the utility model, the photosensitive induction signal and the microwave induction signal are obtained through the induction control lighting circuit; a user instruction is received through a Bluetooth module control circuit, a light control signal is generated according to the photosensitive induction signal and the microwave induction signal, and the light control signal is used for controlling a bulb in the induction control lighting circuit; and the camera control circuit can be used for acquiring images according to a user instruction. According to the utility model, the image information of the monitored area can be obtained through the mobile terminal, and the mobile terminal can be used as a lighting tool, so that people can enter and exit more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting equipment, in particular to an intelligent induction lighting circuit. Background Art

[0002] With the development of society and the progress of technology, people's demand for intelligent life is increasing day by day. As an important part of modern technology, smart home has greatly improved people's quality of life. In the smart home system, the intelligentization of the lighting system is particularly important. Traditional lighting systems often rely on manual control or simple timer control, and cannot be dynamically adjusted according to actual situations, resulting in poor user experience and difficulty in meeting the needs of modern families for high efficiency, convenience and safety.

[0003] In summary, there are problems in the existing technology that need to be solved urgently. Summary of the Utility Model

[0004] The utility model provides an intelligent induction lighting circuit to solve the defects in the existing technology and realize the intelligentization of lighting.

[0005] The utility model provides an intelligent induction lighting circuit, including:

[0006] A Bluetooth module control circuit, a camera control circuit and an induction control lighting circuit;

[0007] The camera control circuit is used to acquire images according to the user instructions;

[0008] The induction control lighting circuit is used to acquire photosensitive induction signals and microwave induction signals;

[0009] The Bluetooth module control circuit is used to receive user instructions and generate a lighting control signal according to the photosensitive induction signal and the microwave induction signal, and the lighting control signal is used to control the bulbs in the induction control lighting circuit;

[0010] Both the camera control circuit and the induction control lighting circuit are connected to the Bluetooth module control circuit.

[0011] According to an intelligent induction lighting circuit provided by the utility model, the intelligent induction lighting circuit further includes: a power supply circuit;

[0012] The power supply circuit is used to step down and regulate the external voltage;

[0013] The power supply circuit is connected to the Bluetooth module control circuit.

[0014] According to an intelligent induction lighting circuit provided by the utility model, the power supply circuit further includes a filter capacitor and a buck regulator.

[0015] According to an intelligent induction lighting circuit provided by the present utility model, the Bluetooth module control circuit includes an Xtensa dual-core 32-bit LX7 microprocessor and an ESP32-S3-WROOM-1-N4 Bluetooth module.

[0016] According to an intelligent induction lighting circuit provided by the present utility model, the camera control circuit includes a sensor, an active crystal oscillator, and an AL422B chip.

[0017] According to an intelligent induction lighting circuit provided by the present utility model, the induction control lighting circuit includes a photoresistor, a first triode, a radio frequency circuit, a microprocessor, and a microwave radar;

[0018] The microwave radar is connected to the Bluetooth module control circuit, the collector of the first triode is connected to the Bluetooth module control circuit, and the base of the first triode is connected to the photoresistor.

[0019] According to an intelligent induction lighting circuit provided by the present utility model, the induction control lighting circuit further includes a second triode and a relay. The collector of the second triode is connected to the relay, and both the light-sensitive induction signal and the microwave induction signal control the working state of the relay through the second triode.

[0020] The intelligent induction lighting circuit provided by the present utility model obtains a light-sensitive induction signal and a microwave induction signal through the induction control lighting circuit; then receives a user instruction through the Bluetooth module control circuit, and generates a lighting control signal according to the light-sensitive induction signal and the microwave induction signal. This lighting control signal is used to control the light bulb in the induction control lighting circuit; it can also perform image acquisition according to the user instruction through the camera control circuit. Through the present utility model, not only can image information of a monitored area be obtained through a mobile terminal, but it can also be used as a lighting tool, making it more convenient for people to enter and exit. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 is a schematic diagram of the modules of the intelligent induction lighting circuit provided by the present utility model;

[0023] Figure 2 is a circuit diagram of the Bluetooth module control circuit provided by the present utility model;

[0024] Figure 3 is the circuit diagram of the camera control circuit provided by the present utility model;

[0025] Figure 4 is the circuit diagram of the induction control lighting circuit provided by the present utility model;

[0026] Figure 5 is the circuit diagram of the power supply circuit provided by the present utility model. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the present utility model will be clearly and completely described below with reference to the accompanying drawings in the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0028] With the continuous progress of society and the rapid development of technology, people's demand for intelligent life is becoming increasingly strong. As a key part of modern technology, smart home significantly improves people's quality of life. In the smart home system, the intelligence of lighting and security systems is particularly important. Traditional lighting and security systems usually rely on manual operation or simple timer control, and it is difficult to make dynamic adjustments according to actual situations. The use experience is relatively inconvenient and cannot meet the needs of modern families for high efficiency, convenience and safety.

[0029] To solve the problems in the prior art, the present utility model proposes an intelligent induction lighting circuit to achieve the intelligence of lighting. The intelligent induction lighting circuit is described below, as Figure 1 shown, including but not limited to the following modules:

[0030] a Bluetooth module control circuit 110, a camera control circuit 120 and an induction control lighting circuit 130;

[0031] The camera control circuit 120 is used to acquire images according to the user instruction;

[0032] The induction control lighting circuit 130 is used to acquire photosensitive induction signals and microwave induction signals;

[0033] The Bluetooth module control circuit 110 is used to receive user instructions and generate a lighting control signal according to the photosensitive induction signal and the microwave induction signal, and the lighting control signal is used to control the bulbs in the induction control lighting circuit;

[0034] The camera control circuit and the inductive control lighting circuit are both connected to the Bluetooth module control circuit.

[0035] As a further optional embodiment, the intelligent inductive lighting circuit further includes: a power supply circuit 140;

[0036] The power supply circuit 140 is used to step down and regulate the external voltage;

[0037] The power supply circuit 140 is connected to the Bluetooth module control circuit.

[0038] As a further optional embodiment, the power supply circuit further includes filter capacitors and a buck regulator.

[0039] As a further optional embodiment, the Bluetooth module control circuit includes an Xtensa dual-core 32-bit LX7 microprocessor and an ESP32-S3-WROOM-1-N4 Bluetooth module.

[0040] As a further optional embodiment, the camera control circuit includes a sensor, an active crystal oscillator, and an AL422B chip.

[0041] As a further optional embodiment, the inductive control lighting circuit includes a photoresistor, a first triode, a radio frequency circuit, a microprocessor, and a microwave radar;

[0042] The microwave radar is connected to the Bluetooth module control circuit, the collector of the first triode is connected to the Bluetooth module control circuit, and the base of the first triode is connected to the photoresistor.

[0043] As a further optional embodiment, the inductive control lighting circuit further includes a second triode and a relay. The collector of the second triode is connected to the relay, and both the photosensitive induction signal and the microwave induction signal control the working state of the relay through the second triode.

[0044] Reference Figure 2 For the Bluetooth module control circuit, a Bluetooth module U1 (ESP32-S3-WROOM-1-N4) with an embedded ESP32-S3 series chip is mainly used. It includes an Xtensa dual-core 32-bit LX7 microprocessor and supports 802.11b / g / n Wi-Fi and Bluetooth 5 (LE) in the 2.4GHz band.

[0045] The Bluetooth module U1 (ESP32-S3-WROOM-1-N4) is connected to pins 1 and 2 of the microwave sensor U2 (FLD02) through serial port pins 13 and 14 to achieve data transmission for detecting whether there is an object moving nearby. The detection result is output through signal pin 33 (CAM_CON): a high level indicates that an object is moving, and a low level indicates that no object is moving.

[0046] In addition, the Bluetooth module U1 (ESP32-S3-WROOM-1-N4) is connected to the camera module U4 (ATK-OV7725) through the SCCB bus interface and GPIO ports, enabling it to acquire the images of the camera module and view and control them on the APP.

[0047] For the convenience of user operation, pin 35 (RESET_K) of the Bluetooth module U1 (ESP32-S3-WROOM-1-N4) is connected to a switch RESET_K1 for clearing network settings, facilitating the user to reconnect to the network and view or remotely control it on the APP.

[0048] Reference Figure 3 For the camera module circuit, a high-performance 300,000-pixel high-definition camera module U4 (ATK-OV7725) is mainly adopted. This module integrates an OV7725 sensor, a crystal oscillator, and a FIFO chip (AL422B), facilitating the MCU to read images. The camera module U4 (ATK-OV7725) is powered by the 3.3V voltage provided by the pre-stage.

[0049] The Bluetooth module U1 (ESP32-S3-WROOM-1-N4) receives the FIFO data (D0 - D7) of the camera module U4 (ATK-OV7725) through 8 GPIO ports and controls the functions of the camera module through the following GPIO ports:

[0050] FIFO_WEN: Write enable pin; FIFO_WRST: Write pointer reset pin; FIFO_RRST: Read pointer reset pin; FIFO_OE: Output enable chip select pin; OV_VSYNC: Frame synchronization signal pin

[0051] In addition, the Bluetooth module U1 (ESP32-S3-WROOM-1-N4) is connected to pins 5 and 3 of the camera module U4 (ATK-OV7725) through SCCB bus pins 4 and 5 to achieve control of the camera module. Through this connection method, the Bluetooth module U1 (ESP32-S3-WROOM-1-N4) can acquire the images of the camera and view and control them through the APP.

[0052] Reference Figure 4, for the inductive control lighting circuit, a photoresistor R7 (GL5528(10-20)_C10081) is mainly used, and its resistance value changes according to the light intensity. For example, during the day, due to the illumination, the resistance value of the photoresistor R7 drops to about 10 - 20 KΩ. At this time, the base of the NPN transistor Q1 (SS8050) is at a high level, the transistor Q1 conducts, and its collector (LT_CONT) is at a low level. At night, due to the lack of illumination, the resistance value of the photoresistor R7 rises to about 1 MΩ. At this time, the base of the transistor Q1 is at a low level, the transistor Q1 does not conduct, and its collector (LT_CONT) is at a high level.

[0053] The microwave induction part uses a microwave radar module U2 (FLD02) that integrates a 5.8G radio frequency circuit and a microprocessor to detect moving objects. U2 conducts data communication with the pins 13 and 14 of the Bluetooth module U1 (ESP32-S3-WROOM-1-N4) through serial pins 1 and 2. The Bluetooth module U1 judges whether there is an object moving based on the received data. When there is an object moving, the output signal pin 33 (CAM_CON) is at a high level; when there is no object moving, the output signal pin 33 (CAM_CON) is at a low level.

[0054] The signal LT_CONT obtained from the photoresistor R7 and the signal CAM_CON obtained from the microwave induction are input into a two-input AND gate chip U3 (74LVC1G08GW,125). At night and when an object moving is detected, both LT_CONT and CAM_CON are at a high level, and the OUT_CONT output through the AND gate chip U3 is also at a high level, causing the transistor Q2 (SS8050) to conduct, and its collector is at a low level, thereby causing the 24V normally open sensitive relay JD1 (HF32F / 024-HSLQ3) to conduct, connecting the input live wire to the output terminal and lighting up the bulb. Therefore, through the inductive control lighting circuit, the bulb can be automatically lit when an object moving is detected at night, which not only realizes the lighting function but also has a safety protection effect.

[0055] Reference Figure 5, for the power supply circuit, a DC-DC buck regulator U8 (ME3116AM6G) is mainly adopted, and its withstand voltage range is from 4.75V to 40V. When an external input voltage of 24V (or other voltages below 40V) is applied, it will pass through capacitors C24, C21, C31 and C33 for filtering to eliminate clutter and supply power to the subsequent stage. Subsequently, the voltage will be supplied to the DC-DC buck regulator U8 (ME3116AM6G). This chip can adjust the output voltage between 0.3V and 40V through external voltage feedback combined with the internal reference voltage. Diode D2 (SS310) serves as a freewheeling diode, and inductor L1 is used for energy storage. Resistors R17 and R19 adjust the voltage feedback, and the output voltage VOUT = 0.8 * (R17 + R19) / R19 can be calculated through the internal reference voltage. Capacitor C30 serves as a feedforward capacitor to improve the transient response or phase margin of the loop. Capacitors C35, C34 and C32 are used for filtering and energy storage, so as to stably output a 5V voltage for the subsequent stage to use.

[0056] A 5V voltage is input from the previous stage. After being filtered by capacitors C36 and C37 to eliminate clutter, the voltage is input to a high-performance linear regulator U9 (RT9013-33GB) with an output current capacity of 500mA, which converts 5V into 3.3V for power supply to the subsequent stage. Capacitors C39 and C38 also play roles in filtering and energy storage. Finally, the output 3.3V voltage is stabilized by a zener diode Z3 (BZT52B3V3) to protect the subsequent circuit from overvoltage.

[0057] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on such an understanding, the essence of the above technical solutions, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., including several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An intelligent induction lighting circuit, characterized in that: include: Bluetooth module control circuit, camera control circuit and induction control lighting circuit; The induction control lighting circuit is used to obtain light-sensitive induction signals and microwave induction signals; The Bluetooth module control circuit is used to receive user instructions and generate a light control signal according to the light sensor induction signal and the microwave induction signal, and the light control signal is used to control the light bulb in the induction control lighting circuit; The camera control circuit is used to acquire images according to the user instructions; The camera control circuit and the induction control lighting circuit are both connected to the Bluetooth module control circuit.

2. The intelligent induction lighting circuit according to claim 1, characterized in that: The intelligent induction lighting circuit also includes: a power supply circuit; The power supply circuit is used to step down and stabilize the external voltage; The power supply circuit is connected to the Bluetooth module control circuit.

3. The intelligent induction lighting circuit according to claim 2, characterized in that: The power supply circuit also includes a filter capacitor and a buck regulator.

4. The intelligent induction lighting circuit according to claim 1, characterized in that: The Bluetooth module control circuit includes an Xtensa dual-core 32-bit LX7 microprocessor and an ESP32-S3-WROOM-1-N4 Bluetooth module.

5. The intelligent induction lighting circuit according to claim 1, characterized in that: The camera control circuit includes a sensor, an active crystal oscillator and an AL422B chip.

6. The intelligent induction lighting circuit according to claim 1, characterized in that: The induction control lighting circuit includes a photoresistor, a first transistor, a radio frequency circuit, a microprocessor and a microwave radar; The microwave radar is connected to the Bluetooth module control circuit, the collector of the first transistor is connected to the Bluetooth module control circuit, and the base of the first transistor is connected to the photoresistor.

7. The intelligent induction lighting circuit according to claim 6, characterized in that: The induction-controlled lighting circuit further includes a second transistor and a relay, wherein the collector of the second transistor is connected to the relay, and the light-sensitive induction signal and the microwave induction signal both control the working state of the relay through the second transistor.

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