CN110784954A - An intelligent dimming control system, control method and application based on the Internet of Things - Google Patents

Abstract

The present invention provides an intelligent dimming control system based on the Internet of Things, including a central processing unit, a power supply module, a transformer, a photoelectric sensor, a wireless communication module, an LED dimming driver, an LED light-emitting module, and an LED dimmer. The illuminance is adjusted according to the intensity of the light in the external environment, which advantageously protects the user's eyes and prevents the user from using it under monotonous light. It is very convenient and convenient to use, and has great use value.

Description

An intelligent dimming control system, control method and application based on the Internet of Things

technical field

The invention relates to the technical field of intelligent control, in particular to an intelligent dimming control system, control method and application based on the Internet of Things.

Background technique

As an electrical appliance used for lighting in people's lives, table lamps are favored by users. With the rapid development of technology, various table lamps appear in people's lives. The beautiful appearance and various functions are not only convenient for people to use. , has also become a variety of fashionable decorative electrical appliances, with the Internet of Things products into people's lives, intelligent table lamps began to appear in people's lives, all of which greatly improve people's work efficiency and improve people's lives. On the one hand, the intelligent desk lamp can save more electricity, which is conducive to environmental protection, and on the other hand, it can be used for a period of time to automatically tell the time, reminding people to pay attention to resting their eyes. At the same time, the function of the smart desk lamp to automatically switch the light on and off when it is dark also makes it more convenient for users to use and saves the trouble of touching the lamp in the dark. However, the smart desk lamp in the prior art still has certain shortcomings, such as the inability to adjust the illumination flexibly. , It is impossible to know the status of the desk lamp in real time. For example, when you forget to turn off the light, it will always be on, causing a certain waste. Therefore, further improvement is needed.

SUMMARY OF THE INVENTION

Aiming at the shortcomings of the above-mentioned prior art, the present invention provides an intelligent solar street light based on Internet of Things control that is easy to manage and maintain, and has a long service life, which solves the problem of using Internet of Things big data to monitor and manage street lights and improve the use of street lights. Technical issues of efficiency.

The technical scheme adopted by the present invention to solve the above problems is:

The invention provides an intelligent dimming control system based on the Internet of Things, comprising a central processing unit, a power supply module, a transformer, a photoelectric sensor, a wireless communication module, an LED dimming driver, an LED light-emitting module, and an LED dimmer; the central The power input end of the processor is connected to a power module, the power module is connected to a charging module through the transformer, the power module is connected to a power switch through a relay, the relay wire is connected to the central processing unit, and the photoelectric sensor It is connected to the central processing unit, and sends the external ambient light information to the central processing unit for processing. The wireless communication module is used to receive the control instructions sent by the mobile terminal, and feed back information to the central processing unit. The central processing unit The control signal output terminal of the LED dimming driver is connected to the control signal input terminal of the LED dimming driver, and receives the control signal information of the LED dimming driver. The DC output terminal of the LED dimming driver is connected to the DC output terminal of the LED lighting module. The input end is connected, and the control signal output end of the LED dimmer is connected with the control signal input end of the LED lighting module.

Further, the power input end of the central processing unit is connected to the power supply module through a voltage stabilizing circuit, and the power supply module outputs stable 12V and 24V voltages after suppressing high voltage and strong current through the voltage stabilizing circuit for the central processing unit. device to supply power.

Further, the integrated voltage regulator circuit consists of voltage regulator chip U, transistor VT4, transistor VT5, diode D6, Zener diode D8, resistor R13, resistor R14, resistor R15, resistor R16, resistor R17, resistor R18, resistor R19, Resistor R20, resistor R21, polar capacitor C6, polar capacitor C7, polar capacitor C8, polar capacitor C9, polar capacitor C10, diode D6, diode D7, diode D8, diode D9, and diode D10. When connected, the N pole of the diode D7 is connected to the base of the transistor VT4 through the resistor R16, the P pole is connected to the P pole of the diode D6 through the resistor R13, and the negative pole of the polar capacitor C6 is connected to the P pole of the diode D7. , The positive pole is connected with the emitter of the triode VT4 through the resistor R14. The positive pole of the polar capacitor C7 is connected to the collector of the triode VT4, and the negative pole is connected to the N pole of the diode D6 through the resistor R15. The P pole of the diode D9 is connected with the base of the triode VT5, and the N pole is connected with the N pole of the zener diode D8 after passing through the resistor R18. The positive pole of the polar capacitor C8 is connected to the collector of the triode VT5 through the resistor R19 and the resistor R17 in sequence, and the negative pole is connected to the COPM pin of the voltage regulator chip U through the resistor R20. The positive pole of the polar capacitor C9 is connected to the SFE pin of the voltage regulator chip U, and the negative pole is grounded. The N pole of the diode D10 is connected to the COPM pin of the voltage regulator chip U, and the P pole is connected to the negative pole of the polar capacitor C9 through the resistor R21. The positive pole of the polar capacitor C10 is connected to the COPM pin of the voltage regulator chip U, and the negative pole is grounded.

Further, the LED dimming driver includes a dimming drive input circuit, a dimming drive transformer circuit, a dimming drive voltage regulator circuit, a dimming drive output circuit, and a central processing unit feedback circuit;

The voltage input end of the dimming drive transformer circuit is connected to the voltage output end of the dimming drive input circuit, the voltage output end of the dimming drive voltage stabilizer circuit is connected to the voltage input end of the dimming drive output circuit, and the The two output ends of the dimming drive output circuit are respectively connected with the positive pole and the negative pole of the LED light-emitting module, and the dimming drive output circuit is connected with the central processing unit;

Further, the dimming drive input circuit includes inductor L1, coil LF1, coil LF2, coil LF3, coil LF4, thermistor VR1, thermistor VR2, diode BD1, diode BD2, diode BD3, diode BD4, capacitor CX1 , capacitor C1, capacitor C2, resistor R1, resistor R2, resistor R3 and battery, the coil LF1 and the coil LF2, the coil LF3 and the coil LF4 are respectively arranged opposite to each other,

One end of the coil LF1 is connected to the negative pole of the power module, the other end of the coil LF1 is connected to one end of the resistor R1, one end of the capacitor CX1 and one end of the coil LF3 at the same time, and one end of the coil LF2 is connected to the power module. The positive pole is connected, the other end of the coil LF2 is connected to one end of the resistor R2, the other end of the capacitor CX1 and one end of the coil LF4 at the same time,

The other end of the resistor R1 is connected to the other end of the resistor R2, the other end of the coil LF3 is simultaneously connected to one end of the thermistor VR1, the anode of the diode BD1 and the cathode of the diode BD2, and the other end of the coil LF4 is simultaneously connected. It is connected to the other end of the thermistor VR1, the cathode of the diode BD4 and the anode of the diode BD3. The cathode of the diode BD1 is connected to the cathode of the diode BD3, one end of the inductor L1, one end of the resistor R3 and one end of the capacitor C1. The other end of the inductance L1 is connected to the other end of the resistor R3, one end of the capacitor C2, and one end of the thermistor VR2 at the same time. The anode of the diode BD4, the anode of the diode BD2, the other end of the capacitor C2 and the thermistor VR2 The other end is also grounded.

Further, the dimming drive transformer circuit includes a drive chip U1, a diode D1, a diode D2, a diode D3, a field effect transistor Q1, an electrolytic capacitor C1A, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, capacitor C9, capacitor C10, resistor R4, resistor R5, resistor R6, resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, resistor R13, resistor R14, resistor R15, resistor R16, resistor R17, Resistor R18 and Resistor R19;

The No. 1 pin of the driver chip U1 is connected to one end of the capacitor C4 and one end of the capacitor C5 at the same time; the No. 2 pin of the driver chip U1 is connected to one end of the capacitor C7; the No. 3 pin of the driver chip U1 is connected to the resistor R10 at the same time. One end of the resistor R11, one end of the resistor R12, one end of the resistor R13, one end of the resistor R16, one end of the capacitor C9, and the source of the FET are connected;

The fourth pin of the driver chip U1 is grounded; the fifth pin of the driver chip U1 is connected to one end of the resistor R14 and the negative electrode of the diode D2 at the same time; the sixth pin of the driver chip U1 is simultaneously connected to the negative electrode of the diode D1 and one end of the capacitor C3. , The positive pole of the electrolytic capacitor C1A is connected to one end of the resistor R5; the seventh pin of the driver chip U1 is connected to one end of the capacitor C6, one end of the resistor R9 and one end of the resistor R7 at the same time; the eighth pin of the driver chip U1 is grounded;

The other end of the capacitor C5 is grounded; the other end of the capacitor C4 is connected to one end of the resistor R8, and the other end of the resistor R8 is grounded;

The other end of the capacitor C7 is grounded; the other end of the resistor R10, the other end of the resistor R11, the other end of the resistor R12 and the other end of the resistor R13 are grounded at the same time; the other end of the resistor R14 is simultaneously connected with one end of the resistor R15 , the other end of the resistor R16 is connected to the gate of the field effect transistor Q1; the positive electrode of the diode D2 is connected to the other end of the resistor R15; the other end of the capacitor C3 and the negative electrode of the electrolytic capacitor C1A are grounded at the same time; the other end of the resistor R5 is connected to One end of resistor R4 is connected to one end; the anode of diode D1 is connected to one end of resistor R6; the cathode of diode D3 is connected to one end of resistor R17; the other end of resistor R17 is connected to one end of resistor R18, one end of resistor R19 and one end of capacitor C8 at the same time One end of the capacitor C10 is grounded, and the other end of the capacitor C10 is connected to the equipotential point; the other end of the capacitor C9, the drain of the FET Q1 and the positive electrode of the diode D3 are simultaneously used as the dimming drive transformer circuit (3-2 ) of an output end; the other end of the resistor R4, the other end of the resistor R19, the other end of the resistor R18 and the other end of the capacitor C8 simultaneously serve as another output end of the dimming drive transformer circuit; the dimming drive The voltage input end of the transformer circuit is connected to the other output end of the dimming drive transformer circuit; the other end of the resistor R6 and the other end of the resistor R7 simultaneously serve as the third output end of the dimming drive transformer circuit.

Further, the central processing unit feedback circuit includes a dimmable light drive chip U2, a diode D7, a diode D8, a capacitor C16, a capacitor C17, a capacitor C18, a capacitor C19, an electrolytic capacitor C5A, an electrolytic capacitor C6A, an inductor L3, a resistor R35, Resistor R36, Resistor R37 and Resistor R38;

The first pin of the adjustable light driving chip U2 is connected with the capacitor C16; the second pin of the adjustable light driving chip U2 is connected with the equipotential point; the third pin of the adjustable light driving chip U2 is connected with the capacitor C19 at the same time. One end of the resistor R37 is connected to one end of the resistor R38; the fourth pin of the dimmable driver chip U2 is connected to one end of the resistor R36; the fifth pin of the dimmable driver chip U2 is simultaneously connected to the other end of the resistor R36 , one end of the capacitor C17, the positive electrode of the electrolytic capacitor C5A is connected to the negative electrode of the diode D7; the sixth pin of the dimmable driver chip U2 is connected to the negative electrode of the diode D8, the other end of the capacitor C16 and one end of the inductor L3 are connected simultaneously; the capacitor C17 The other end of the electrolytic capacitor C5A, the positive electrode of the diode D8, the other end of the capacitor C19, the other end of the resistor R38, the negative electrode of the electrolytic capacitor C6A and the one end of the capacitor C18 are connected to the equipotential point at the same time; the positive electrode of the diode D7 is connected to the resistance One end of R35 is connected; the other end of the resistor R35 is the feedback signal input end of the feedback circuit of the central processing unit; the other end of the inductance L3, the other end of the resistor R37, the positive electrode of the electrolytic capacitor C6A and the other end of the capacitor C18 are used as the central processing unit. The output terminal of the central processing unit feedback circuit connected to the +12V input terminal of the four-pin CON chip in the device; the equipotential point is used as the output terminal of the central processing unit feedback circuit connected to the GND input terminal of the four-pin CON chip in the central processing unit;

Further, the dimming drive output circuit includes a drive chip U3, an inductor L2, a diode D6, an electrolytic capacitor C4A, a capacitor C12, a capacitor C13, a capacitor C14, a capacitor C15, a resistor R24, a resistor R25, a resistor R26, a resistor R27, Resistor R28, Resistor R29, Resistor R30, Resistor R31, Resistor R32, Resistor R33 and Resistor R34;

The No. 1 pin of the driving chip U3 is connected with the No. 2 pin of the driving chip U3, one end of the resistance R34, one end of the capacitor C15 and one end of the resistance R33 at the same time; One end is connected to the anode of the diode D6; the fourth pin of the driver chip U3 is connected to one end of the capacitor C14 and the equipotential point at the same time; the fifth pin of the driver chip U3 is simultaneously connected to the other end of the capacitor C14, the cathode of the diode D6, the resistor One end of R24, one end of resistor R25, one end of resistor R26 and one end of resistor R27 are connected to each other, and serve as the voltage input end of the dimming drive output circuit (3-5); the sixth pin of the driver chip U3 is connected to the The other end, the other end of the resistor R25, the other end of the resistor R26, the positive electrode of the electrolytic capacitor C4A and one end of the resistor R31 are connected, and used as the output end of the dimming drive output circuit connected to the positive electrode of the LED lamp; No. 7 of the driver chip U3 The pin is connected to pin No. 8 of driver chip U3, one end of capacitor C13, one end of resistor R32 and one end of resistor R30 at the same time; the other end of inductor L2 is connected to the negative electrode of electrolytic capacitor C4A and the other end of resistor R31 at the same time, and As the output end of the dimming drive output circuit (3-5) connected to the negative electrode of the LED lamp; the other end of the resistor R27 is connected to the other end of the resistor R30 and one end of the resistor 28 at the same time, and one end of the resistor R29 is connected to the other end of the resistor R33 at the same time. One end is connected to one end of the capacitor C12; the other end of the capacitor C12 is connected to the other end of the capacitor C15, the other end of the resistor R34, the other end of the resistor R32, the other end of the capacitor C13 and the equipotential point at the same time; the equipotential point is connected with the central processing The END communication signal output end of the four-pin CON chip in the device is connected, and the other end of the resistor R28 and the other end of the resistor R29 are connected to the 0-10V communication signal output end of the four-pin CON chip in the central processing unit.

A control method for an intelligent dimming control system based on the Internet of Things, comprising the following steps:

(1) Set the storage standard illuminance threshold. Within the range of 150-7501x illumination intensity, it is divided into three levels of illumination intensity: low light (1501x-3001x), medium high light (3001x-5001x), and high light (5001x-7501x);

(2) Set the standard illuminance value according to the use environment category, and initialize the controller;

(3) Set the output signal thresholds of the photoelectric sensor to sense the natural light of the environment during the day and night respectively, and store them in advance. After the setting is completed, enter the standby state;

(4) The photoelectric sensor senses the natural background light output signal and compares it with the threshold;

(7) If the photoelectric sensor has a threshold signal output, the controller controls the power supply device to turn on the power supply, turn on the desk lamp, and controls the dimming control module to adjust the luminous intensity of the desk lamp to an appropriate illuminance;

(8) The central processor sends the relevant light intensity information to the mobile terminal through the wireless communication module;

(9) After receiving the light intensity information, the mobile terminal stores and analyzes it. If the light information needs to be adjusted, it sends an adjustment command to the central processing unit, and the central processing unit adjusts the light according to the received command.

An application of an intelligent dimming control system based on the Internet of Things in an intelligent lighting desk lamp.

The beneficial effects of the present invention are:

The intelligent dimming control system based on the Internet of Things provided by the present invention can adjust the illuminance according to the intensity of the light in the external environment, which advantageously protects the user's eyes and prevents the user from being exposed to monotonous light. At the same time, this application adopts the technology of combining material network, which can enable users to know the working conditions of the system in real time remotely, and can realize remote control, which is extremely convenient and convenient to use, and has great use value.

Description of drawings

Fig. 1 is the principle block diagram of a kind of intelligent dimming control system based on the Internet of Things of the present invention;

Fig. 2 is an integrated voltage regulator circuit diagram of an intelligent dimming control system based on the Internet of Things of the present invention;

3 is a circuit diagram of a dimming drive input of an intelligent dimming control system based on the Internet of Things of the present invention;

4 is a circuit diagram of a dimming drive transformer of an intelligent dimming control system based on the Internet of Things of the present invention;

5 is a feedback circuit diagram of a central processor of an intelligent dimming control system based on the Internet of Things of the present invention;

6 is a circuit diagram of a dimming drive output of an intelligent dimming control system based on the Internet of Things of the present invention;

FIG. 7 is a flowchart of a control method of an intelligent dimming control system based on the Internet of Things of the present invention.

Detailed ways

The embodiments of the present invention will be specifically described below with reference to the accompanying drawings, which are for reference and illustration purposes only, and do not limit the scope of the patent protection of the present invention.

As shown in FIG. 1, the present invention provides an intelligent dimming control system based on the Internet of Things, including a central processing unit, a power supply module, a transformer, a photoelectric sensor, a wireless communication module, an LED dimming driver, an LED light-emitting module, an LED dimming Optical device, the power input end of the central processing unit is connected to a power module, the power module is connected to a charging module through the transformer, the power module is connected to a power switch through a relay, and the relay wire is connected to the central processing unit The photoelectric sensor is connected to the central processing unit, and sends the external ambient light information to the central processing unit for processing. The wireless communication module is used to receive the control instructions sent by the mobile terminal and feed back the information to the central processing unit. , the control signal output end of the central processing unit is connected to the control signal input end of the LED dimming driver, receives the control signal information of the LED dimming driver, and the DC output end of the LED dimming driver is connected to the The DC input end of the LED light-emitting module is connected, and the control signal output end of the LED dimmer is connected with the control signal input end of the LED light-emitting module.

In this embodiment, the power input end of the central processing unit is connected to the power supply module through a voltage stabilizing circuit, and the power supply module outputs stable 12V and 24V voltages after suppressing high voltage and strong current through the voltage stabilizing circuit. The central processing unit is powered.

As shown in Figure 2, in this embodiment, the integrated voltage regulator circuit consists of a voltage regulator chip U, a transistor VT4, a transistor VT5, a diode D6, a Zener diode D8, a resistor R13, a resistor R14, a resistor R15, a resistor R16, a resistor R17, Resistor R18, Resistor R19, Resistor R20, Resistor R21, Polar Capacitor C6, Polar Capacitor C7, Polar Capacitor C8, Polar Capacitor C9, Polar Capacitor C10, Diode D6, Diode D7, Diode D8, Diode D9 , and the diode D10 composition. When connected, the N pole of the diode D7 is connected to the base of the transistor VT4 through the resistor R16, the P pole is connected to the P pole of the diode D6 through the resistor R13, and the negative pole of the polar capacitor C6 is connected to the P pole of the diode D7. , The positive pole is connected with the emitter of the triode VT4 through the resistor R14. The positive pole of the polar capacitor C7 is connected to the collector of the triode VT4, and the negative pole is connected to the N pole of the diode D6 through the resistor R15. The P pole of the diode D9 is connected with the base of the triode VT5, and the N pole is connected with the N pole of the zener diode D8 after passing through the resistor R18. The positive pole of the polar capacitor C8 is connected to the collector of the triode VT5 through the resistor R19 and the resistor R17 in sequence, and the negative pole is connected to the COPM pin of the voltage regulator chip U through the resistor R20. The positive pole of the polar capacitor C9 is connected to the SFE pin of the voltage regulator chip U, and the negative pole is grounded. The N pole of the diode D10 is connected to the COPM pin of the voltage regulator chip U, and the P pole is connected to the negative pole of the polar capacitor C9 through the resistor R21. The positive pole of the polar capacitor C10 is connected to the COPM pin of the voltage regulator chip U, and the negative pole is grounded.

In this embodiment, the LED dimming driver includes a dimming drive input circuit, a dimming drive transformer circuit, a dimming drive voltage regulator circuit, a dimming drive output circuit, and a central processing unit feedback circuit;

The voltage input end of the dimming drive transformer circuit is connected to the voltage output end of the dimming drive input circuit, the voltage output end of the dimming drive voltage stabilizer circuit is connected to the voltage input end of the dimming drive output circuit, and the The two output ends of the dimming drive output circuit are respectively connected with the positive pole and the negative pole of the LED light-emitting module, and the dimming drive output circuit is connected with the central processing unit;

As shown in FIG. 3 , in this embodiment, the dimming drive input circuit includes an inductor L1, a coil LF1, a coil LF2, a coil LF3, a coil LF4, a thermistor VR1, a thermistor VR2, a diode BD1, a diode BD2, A diode BD3, a diode BD4, a capacitor CX1, a capacitor C1, a capacitor C2, a resistor R1, a resistor R2, a resistor R3 and a battery, the coil LF1 and the coil LF2, the coil LF3 and the coil LF4 are respectively arranged opposite to each other,

One end of the coil LF1 is connected to the negative pole of the power module, the other end of the coil LF1 is connected to one end of the resistor R1, one end of the capacitor CX1 and one end of the coil LF3 at the same time, and one end of the coil LF2 is connected to the power module. The positive pole is connected, the other end of the coil LF2 is connected to one end of the resistor R2, the other end of the capacitor CX1 and one end of the coil LF4 at the same time,

The other end of the resistor R1 is connected to the other end of the resistor R2, the other end of the coil LF3 is simultaneously connected to one end of the thermistor VR1, the anode of the diode BD1 and the cathode of the diode BD2, and the other end of the coil LF4 is simultaneously connected. It is connected to the other end of the thermistor VR1, the cathode of the diode BD4 and the anode of the diode BD3. The cathode of the diode BD1 is connected to the cathode of the diode BD3, one end of the inductor L1, one end of the resistor R3 and one end of the capacitor C1. The other end of the inductance L1 is connected to the other end of the resistor R3, one end of the capacitor C2, and one end of the thermistor VR2 at the same time. The anode of the diode BD4, the anode of the diode BD2, the other end of the capacitor C2 and the thermistor VR2 The other end is also grounded.

As shown in FIG. 4 , in this embodiment, the dimming driving transformer circuit includes a driving chip U1, a diode D1, a diode D2, a diode D3, a field effect transistor Q1, an electrolytic capacitor C1A, a capacitor C3, a capacitor C4, and a capacitor C5 , capacitor C6, capacitor C7, capacitor C8, capacitor C9, capacitor C10, resistor R4, resistor R5, resistor R6, resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, resistor R13, resistor R14, resistor R15, resistor R16, resistor R17, resistor R18 and resistor R19;

The No. 1 pin of the driver chip U1 is connected to one end of the capacitor C4 and one end of the capacitor C5 at the same time; the No. 2 pin of the driver chip U1 is connected to one end of the capacitor C7; the No. 3 pin of the driver chip U1 is connected to the resistor R10 at the same time. One end of the resistor R11, one end of the resistor R12, one end of the resistor R13, one end of the resistor R16, one end of the capacitor C9, and the source of the FET are connected;

The fourth pin of the driver chip U1 is grounded; the fifth pin of the driver chip U1 is connected to one end of the resistor R14 and the negative electrode of the diode D2 at the same time; the sixth pin of the driver chip U1 is simultaneously connected to the negative electrode of the diode D1 and one end of the capacitor C3. , The positive pole of the electrolytic capacitor C1A is connected to one end of the resistor R5; the seventh pin of the driver chip U1 is connected to one end of the capacitor C6, one end of the resistor R9 and one end of the resistor R7 at the same time; the eighth pin of the driver chip U1 is grounded;

The other end of the capacitor C5 is grounded; the other end of the capacitor C4 is connected to one end of the resistor R8, and the other end of the resistor R8 is grounded;

The other end of the capacitor C7 is grounded; the other end of the resistor R10, the other end of the resistor R11, the other end of the resistor R12 and the other end of the resistor R13 are grounded at the same time; the other end of the resistor R14 is simultaneously connected with one end of the resistor R15 , the other end of the resistor R16 is connected to the gate of the field effect transistor Q1; the positive electrode of the diode D2 is connected to the other end of the resistor R15; the other end of the capacitor C3 and the negative electrode of the electrolytic capacitor C1A are grounded at the same time; the other end of the resistor R5 is connected to One end of resistor R4 is connected to one end; the anode of diode D1 is connected to one end of resistor R6; the cathode of diode D3 is connected to one end of resistor R17; the other end of resistor R17 is connected to one end of resistor R18, one end of resistor R19 and one end of capacitor C8 at the same time One end of the capacitor C10 is grounded, and the other end of the capacitor C10 is connected to the equipotential point; the other end of the capacitor C9, the drain of the FET Q1 and the positive electrode of the diode D3 are simultaneously used as the dimming drive transformer circuit (3-2 ) of an output end; the other end of the resistor R4, the other end of the resistor R19, the other end of the resistor R18 and the other end of the capacitor C8 simultaneously serve as another output end of the dimming drive transformer circuit; the dimming drive The voltage input end of the transformer circuit is connected to the other output end of the dimming drive transformer circuit; the other end of the resistor R6 and the other end of the resistor R7 simultaneously serve as the third output end of the dimming drive transformer circuit.

As shown in FIG. 5 , in this embodiment, the central processing unit feedback circuit includes a dimmable light drive chip U2, a diode D7, a diode D8, a capacitor C16, a capacitor C17, a capacitor C18, a capacitor C19, an electrolytic capacitor C5A, an electrolytic capacitor C6A, inductor L3, resistor R35, resistor R36, resistor R37 and resistor R38;

The first pin of the adjustable light driving chip U2 is connected with the capacitor C16; the second pin of the adjustable light driving chip U2 is connected with the equipotential point; the third pin of the adjustable light driving chip U2 is connected with the capacitor C19 at the same time. One end of the resistor R37 is connected to one end of the resistor R38; the fourth pin of the dimmable driver chip U2 is connected to one end of the resistor R36; the fifth pin of the dimmable driver chip U2 is simultaneously connected to the other end of the resistor R36 , one end of the capacitor C17, the positive electrode of the electrolytic capacitor C5A is connected to the negative electrode of the diode D7; the sixth pin of the dimmable driver chip U2 is connected to the negative electrode of the diode D8, the other end of the capacitor C16 and one end of the inductor L3 are connected simultaneously; the capacitor C17 The other end of the electrolytic capacitor C5A, the positive electrode of the diode D8, the other end of the capacitor C19, the other end of the resistor R38, the negative electrode of the electrolytic capacitor C6A and the one end of the capacitor C18 are connected to the equipotential point at the same time; the positive electrode of the diode D7 is connected to the resistance One end of R35 is connected; the other end of the resistor R35 is the feedback signal input end of the feedback circuit of the central processing unit; the other end of the inductance L3, the other end of the resistor R37, the positive electrode of the electrolytic capacitor C6A and the other end of the capacitor C18 are used as the central processing unit. The output terminal of the central processing unit feedback circuit connected to the +12V input terminal of the four-pin CON chip in the device; the equipotential point is used as the output terminal of the central processing unit feedback circuit connected to the GND input terminal of the four-pin CON chip in the central processing unit;

As shown in FIG. 6 , in this embodiment, the dimming drive output circuit includes a drive chip U3, an inductor L2, a diode D6, an electrolytic capacitor C4A, a capacitor C12, a capacitor C13, a capacitor C14, a capacitor C15, a resistor R24, a resistor R25, resistor R26, resistor R27, resistor R28, resistor R29, resistor R30, resistor R31, resistor R32, resistor R33 and resistor R34;

The No. 1 pin of the driving chip U3 is connected with the No. 2 pin of the driving chip U3, one end of the resistance R34, one end of the capacitor C15 and one end of the resistance R33 at the same time; One end is connected to the anode of the diode D6; the fourth pin of the driver chip U3 is connected to one end of the capacitor C14 and the equipotential point at the same time; the fifth pin of the driver chip U3 is simultaneously connected to the other end of the capacitor C14, the cathode of the diode D6, the resistor One end of R24, one end of resistor R25, one end of resistor R26 and one end of resistor R27 are connected to each other, and serve as the voltage input end of the dimming drive output circuit (3-5); the sixth pin of the driver chip U3 is connected to the The other end, the other end of the resistor R25, the other end of the resistor R26, the positive electrode of the electrolytic capacitor C4A and one end of the resistor R31 are connected, and used as the output end of the dimming drive output circuit connected to the positive electrode of the LED lamp; No. 7 of the driver chip U3 The pin is connected to pin No. 8 of driver chip U3, one end of capacitor C13, one end of resistor R32 and one end of resistor R30 at the same time; the other end of inductor L2 is connected to the negative electrode of electrolytic capacitor C4A and the other end of resistor R31 at the same time, and As the output end of the dimming drive output circuit (3-5) connected to the negative electrode of the LED lamp; the other end of the resistor R27 is connected to the other end of the resistor R30 and one end of the resistor 28 at the same time, and one end of the resistor R29 is connected to the other end of the resistor R33 at the same time. One end is connected to one end of the capacitor C12; the other end of the capacitor C12 is connected to the other end of the capacitor C15, the other end of the resistor R34, the other end of the resistor R32, the other end of the capacitor C13 and the equipotential point at the same time; the equipotential point is connected with the central processing The END communication signal output end of the four-pin CON chip in the device is connected, and the other end of the resistor R28 and the other end of the resistor R29 are connected to the 0-10V communication signal output end of the four-pin CON chip in the central processing unit.

A control method for an intelligent dimming control system based on the Internet of Things, comprising the following steps:

(1) Set the storage standard illuminance threshold. Within the range of 150-7501x illumination intensity, it is divided into three levels of illumination intensity: low light (1501x-3001x), medium high light (3001x-5001x), and high light (5001x-7501x);

(2) Set the standard illuminance value according to the use environment category, and initialize the controller;

(3) Set the output signal thresholds of the photoelectric sensor to sense the natural light of the environment during the day and night respectively, and store them in advance. After the setting is completed, enter the standby state;

(4) The photoelectric sensor senses the natural background light output signal and compares it with the threshold;

(5) If the photoelectric sensor has a threshold signal output, the controller controls the power supply device to turn on the power supply, turns on the desk lamp, and controls the dimming control module to adjust the luminous intensity of the desk lamp to an appropriate illuminance;

(6) The central processor sends the relevant light intensity information to the mobile terminal through the wireless communication module;

(7) After receiving the light intensity information, the mobile terminal stores and analyzes it. If the light information needs to be adjusted, it sends an adjustment command to the central processing unit, and the central processing unit adjusts the light according to the received command.

An application of an intelligent dimming control system based on the Internet of Things in an intelligent lighting desk lamp. In the application process of the desk lamp, the LED light-emitting module can use RGB three-primary fluorescent lamps or five-primary fluorescent lamps or LED lamps with a color temperature of 3800-6500K. In order to reduce the influence of light source stroboscopic, it is beneficial to better protect the eyes. At the same time, the lampshade matched with the LED light-emitting module can be designed with a light-transmitting structure to adjust the ambient background light, avoid local strong light to stimulate the eyes, and slow down the eyes. Fatigue, better protection of eyesight.

The intelligent dimming control system based on the Internet of Things provided by the present invention can adjust the illuminance according to the intensity of the light in the external environment, which advantageously protects the user's eyes and prevents the user from being exposed to monotonous light. At the same time, this application adopts the technology of combining material network, which can enable users to know the working conditions of the system in real time remotely, and can realize remote control, which is extremely convenient and convenient to use, and has great use value.

The above-mentioned embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above-mentioned embodiments, and any other changes, modifications, substitutions, combinations, The simplification should be equivalent replacement manners, which are all included in the protection scope of the present invention.

Claims (10)

1. An intelligent dimming control system based on the Internet of Things, characterized in that: comprising a central processing unit, a power supply module, a transformer, a photoelectric sensor, a wireless communication module, an LED dimming driver, an LED light-emitting module, and an LED dimmer; The power input end of the central processing unit is connected to a power supply module, the power supply module is connected to a charging module through the transformer, the power supply module is connected to a power switch through a relay, and the relay wire is connected to the central processing unit, so the The photoelectric sensor is connected to the central processing unit, and sends the external environment light information to the central processing unit for processing. The wireless communication module is used to receive the control instructions sent by the mobile terminal and feed back information to the central processing unit. The control signal output end of the central processing unit is connected to the control signal input end of the LED dimming driver, and receives the control signal information of the LED dimming driver. The DC output end of the LED dimming driver is connected to the LED light-emitting mode. The DC input end of the group is connected, and the control signal output end of the LED dimmer is connected with the control signal input end of the LED lighting module. 2. The intelligent dimming control system based on the Internet of Things according to claim 1, wherein the power input end of the central processing unit is connected to a power supply module through a voltage stabilizing circuit, and the power supply module is regulated by a voltage stabilizing circuit. After the circuit suppresses high voltage and strong current, it outputs stable voltages of 12V and 24V to supply power to the central processing unit. 3. A kind of intelligent dimming control system (201510953401.3) based on Internet of Things according to claim 2, it is characterized in that: described integrated voltage stabilizer circuit is composed of voltage stabilizer chip U, triode VT4, triode VT5, diode D6, stabilizer. Voltage diode D8, resistor R13, resistor R14, resistor R15, resistor R16, resistor R17, resistor R18, resistor R19, resistor R20, resistor R21, polar capacitor C6, polar capacitor C7, polar capacitor C8, polar capacitor C9 , Polarity capacitor C10, diode D6, diode D7, diode D8, diode D9, and diode D10. When connected, the N pole of the diode D7 is connected to the base of the transistor VT4 through the resistor R16, the P pole is connected to the P pole of the diode D6 through the resistor R13, and the negative pole of the polar capacitor C6 is connected to the P pole of the diode D7. , The positive pole is connected with the emitter of the triode VT4 through the resistor R14. The positive pole of the polar capacitor C7 is connected to the collector of the triode VT4, and the negative pole is connected to the N pole of the diode D6 through the resistor R15. The P pole of the diode D9 is connected with the base of the triode VT5, and the N pole is connected with the N pole of the zener diode D8 after passing through the resistor R18. The positive pole of the polar capacitor C8 is connected to the collector of the triode VT5 through the resistor R19 and the resistor R17 in sequence, and the negative pole is connected to the COPM pin of the voltage regulator chip U through the resistor R20. The positive pole of the polar capacitor C9 is connected to the SFE pin of the voltage regulator chip U, and the negative pole is grounded. The N pole of the diode D10 is connected to the COPM pin of the voltage regulator chip U, and the P pole is connected to the negative pole of the polar capacitor C9 through the resistor R21. The positive pole of the polar capacitor C10 is connected to the COPM pin of the voltage regulator chip U, and the negative pole is grounded. 4. An intelligent dimming control system based on the Internet of Things according to claim 1, wherein the LED dimming driver comprises a dimming drive input circuit, a dimming drive transformer circuit, a dimming drive voltage regulator circuit, Dimming drive output circuit, CPU feedback circuit; The voltage input end of the dimming drive transformer circuit is connected to the voltage output end of the dimming drive input circuit, the voltage output end of the dimming drive voltage stabilizer circuit is connected to the voltage input end of the dimming drive output circuit, and the The two output ends of the dimming drive output circuit are respectively connected with the positive pole and the negative pole of the LED light-emitting module, and the dimming drive output circuit is connected with the central processing unit. 5. The intelligent dimming control system based on the Internet of Things according to claim 4, wherein the dimming drive input circuit comprises an inductor L1, a coil LF1, a coil LF2, a coil LF3, a coil LF4, and a thermistor VR1 , Thermistor VR2, Diode BD1, Diode BD2, Diode BD3, Diode BD4, Capacitor CX1, Capacitor C1, Capacitor C2, Resistor R1, Resistor R2, Resistor R3 and Battery, the Coil LF1 and Coil LF2, Coil LF3 and Coil LF4 are placed relative to each other, One end of the coil LF1 is connected to the negative pole of the power module, the other end of the coil LF1 is connected to one end of the resistor R1, one end of the capacitor CX1 and one end of the coil LF3 at the same time, and one end of the coil LF2 is connected to the power module. The positive pole is connected, the other end of the coil LF2 is connected to one end of the resistor R2, the other end of the capacitor CX1 and one end of the coil LF4 at the same time, The other end of the resistor R1 is connected to the other end of the resistor R2, the other end of the coil LF3 is simultaneously connected to one end of the thermistor VR1, the anode of the diode BD1 and the cathode of the diode BD2, and the other end of the coil LF4 is simultaneously connected. It is connected to the other end of the thermistor VR1, the cathode of the diode BD4 and the anode of the diode BD3. The cathode of the diode BD1 is connected to the cathode of the diode BD3, one end of the inductor L1, one end of the resistor R3 and one end of the capacitor C1. The other end of the inductance L1 is connected to the other end of the resistor R3, one end of the capacitor C2, and one end of the thermistor VR2 at the same time. The anode of the diode BD4, the anode of the diode BD2, the other end of the capacitor C2 and the thermistor VR2 The other end is also grounded. 6. An intelligent dimming control system based on the Internet of Things according to claim 4, characterized in that: the dimming driving transformer circuit comprises a driving chip U1, a diode D1, a diode D2, a diode D3, a field effect transistor Q1, Electrolytic capacitor C1A, capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, capacitor C10, resistor R4, resistor R5, resistor R6, resistor R7, resistor R8, resistor R9, resistor R10, resistor R11, resistor R12, resistor R13, resistor R14, resistor R15, resistor R16, resistor R17, resistor R18 and resistor R19; The No. 1 pin of the driver chip U1 is connected to one end of the capacitor C4 and one end of the capacitor C5 at the same time; the No. 2 pin of the driver chip U1 is connected to one end of the capacitor C7; the No. 3 pin of the driver chip U1 is connected to the resistor R10 at the same time. One end of the resistor R11, one end of the resistor R12, one end of the resistor R13, one end of the resistor R16, one end of the capacitor C9, and the source of the FET are connected; The fourth pin of the driver chip U1 is grounded; the fifth pin of the driver chip U1 is connected to one end of the resistor R14 and the negative electrode of the diode D2 at the same time; the sixth pin of the driver chip U1 is simultaneously connected to the negative electrode of the diode D1 and one end of the capacitor C3. , The positive pole of the electrolytic capacitor C1A is connected to one end of the resistor R5; the seventh pin of the driver chip U1 is connected to one end of the capacitor C6, one end of the resistor R9 and one end of the resistor R7 at the same time; the eighth pin of the driver chip U1 is grounded; The other end of the capacitor C5 is grounded; the other end of the capacitor C4 is connected to one end of the resistor R8, and the other end of the resistor R8 is grounded; The other end of the capacitor C7 is grounded; the other end of the resistor R10, the other end of the resistor R11, the other end of the resistor R12 and the other end of the resistor R13 are grounded at the same time; the other end of the resistor R14 is simultaneously connected with one end of the resistor R15 , the other end of the resistor R16 is connected to the gate of the field effect transistor Q1; the positive electrode of the diode D2 is connected to the other end of the resistor R15; the other end of the capacitor C3 and the negative electrode of the electrolytic capacitor C1A are grounded at the same time; the other end of the resistor R5 is connected to One end of resistor R4 is connected to one end; the anode of diode D1 is connected to one end of resistor R6; the cathode of diode D3 is connected to one end of resistor R17; the other end of resistor R17 is connected to one end of resistor R18, one end of resistor R19 and one end of capacitor C8 at the same time One end of the capacitor C10 is grounded, and the other end of the capacitor C10 is connected to the equipotential point; the other end of the capacitor C9, the drain of the FET Q1 and the positive electrode of the diode D3 are simultaneously used as the dimming drive transformer circuit (3-2 ) of an output end; the other end of the resistor R4, the other end of the resistor R19, the other end of the resistor R18 and the other end of the capacitor C8 simultaneously serve as another output end of the dimming drive transformer circuit; the dimming drive The voltage input end of the transformer circuit is connected to the other output end of the dimming drive transformer circuit; the other end of the resistor R6 and the other end of the resistor R7 simultaneously serve as the third output end of the dimming drive transformer circuit. 7. A kind of intelligent dimming control system based on Internet of Things according to claim 4, is characterized in that: described central processing unit feedback circuit comprises dimming drive chip U2, diode D7, diode D8, capacitor C16, capacitor C17, Capacitor C18, Capacitor C19, Electrolytic Capacitor C5A, Electrolytic Capacitor C6A, Inductor L3, Resistor R35, Resistor R36, Resistor R37 and Resistor R38; The first pin of the adjustable light driving chip U2 is connected with the capacitor C16; the second pin of the adjustable light driving chip U2 is connected with the equipotential point; the third pin of the adjustable light driving chip U2 is connected with the capacitor C19 at the same time. One end of the resistor R37 is connected to one end of the resistor R38; the fourth pin of the dimmable driver chip U2 is connected to one end of the resistor R36; the fifth pin of the dimmable driver chip U2 is simultaneously connected to the other end of the resistor R36 , one end of the capacitor C17, the positive electrode of the electrolytic capacitor C5A is connected to the negative electrode of the diode D7; the sixth pin of the dimmable driver chip U2 is connected to the negative electrode of the diode D8, the other end of the capacitor C16 and one end of the inductor L3 are connected simultaneously; the capacitor C17 The other end of the electrolytic capacitor C5A, the positive electrode of the diode D8, the other end of the capacitor C19, the other end of the resistor R38, the negative electrode of the electrolytic capacitor C6A and the one end of the capacitor C18 are connected to the equipotential point at the same time; the positive electrode of the diode D7 is connected to the resistance One end of R35 is connected; the other end of the resistor R35 is the feedback signal input end of the feedback circuit of the central processing unit; the other end of the inductance L3, the other end of the resistor R37, the positive electrode of the electrolytic capacitor C6A and the other end of the capacitor C18 are used as the central processing unit. The output terminal of the central processing unit feedback circuit connected to the +12V input terminal of the four-pin CON chip in the device; the equipotential point is used as the output terminal of the central processing unit feedback circuit connected to the GND input terminal of the four-pin CON chip in the central processing unit. 8. A kind of intelligent dimming control system based on the Internet of Things according to claim 4, is characterized in that: The dimming drive output circuit includes a drive chip U3, an inductor L2, a diode D6, an electrolytic capacitor C4A, a capacitor C12, a capacitor C13, a capacitor C14, a capacitor C15, a resistor R24, a resistor R25, a resistor R26, a resistor R27, a resistor R28, Resistor R29, Resistor R30, Resistor R31, Resistor R32, Resistor R33 and Resistor R34; The No. 1 pin of the driving chip U3 is connected with the No. 2 pin of the driving chip U3, one end of the resistance R34, one end of the capacitor C15 and one end of the resistance R33 at the same time; One end is connected to the anode of the diode D6; the fourth pin of the driver chip U3 is connected to one end of the capacitor C14 and the equipotential point at the same time; the fifth pin of the driver chip U3 is simultaneously connected to the other end of the capacitor C14, the cathode of the diode D6, the resistor One end of R24, one end of resistor R25, one end of resistor R26 and one end of resistor R27 are connected to each other, and serve as the voltage input end of the dimming drive output circuit (3-5); the sixth pin of the driver chip U3 is connected to the The other end, the other end of the resistor R25, the other end of the resistor R26, the positive electrode of the electrolytic capacitor C4A and one end of the resistor R31 are connected, and used as the output end of the dimming drive output circuit connected to the positive electrode of the LED lamp; No. 7 of the driver chip U3 The pin is connected to pin No. 8 of driver chip U3, one end of capacitor C13, one end of resistor R32 and one end of resistor R30 at the same time; the other end of inductor L2 is connected to the negative electrode of electrolytic capacitor C4A and the other end of resistor R31 at the same time, and As the output end of the dimming drive output circuit (3-5) connected to the negative electrode of the LED lamp; the other end of the resistor R27 is connected to the other end of the resistor R30 and one end of the resistor 28 at the same time, and one end of the resistor R29 is connected to the other end of the resistor R33 at the same time. One end is connected to one end of the capacitor C12; the other end of the capacitor C12 is connected to the other end of the capacitor C15, the other end of the resistor R34, the other end of the resistor R32, the other end of the capacitor C13 and the equipotential point at the same time; the equipotential point is connected with the central processing The END communication signal output end of the four-pin CON chip in the device is connected, and the other end of the resistor R28 and the other end of the resistor R29 are connected to the 0-10V communication signal output end of the four-pin CON chip in the central processing unit. 9. A control method for an intelligent dimming control system based on the Internet of Things, characterized in that it comprises the following steps: (1) Set the storage standard illuminance threshold. Within the range of 150-7501x illumination intensity, it is divided into three levels of illumination intensity: low light (1501x-3001x), medium high light (3001x-5001x), and high light (5001x-7501x); (2) Set the standard illuminance value according to the use environment category, and initialize the controller; (3) Set the output signal thresholds of the photoelectric sensor to sense the natural light of the environment during the day and night respectively, and store them in advance. After the setting is completed, enter the standby state; (4) The photoelectric sensor senses the natural background light output signal and compares it with the threshold; (5) If the photoelectric sensor has a threshold signal output, the controller controls the power supply device to turn on the power supply, turns on the desk lamp, and controls the dimming control module to adjust the luminous intensity of the desk lamp to an appropriate illuminance; (6) The central processor sends the relevant light intensity information to the mobile terminal through the wireless communication module; (7) After receiving the light intensity information, the mobile terminal stores and analyzes it. If the light information needs to be adjusted, it sends an adjustment command to the central processing unit, and the central processing unit adjusts the light according to the received command. 10. An application of the intelligent dimming control system based on the Internet of Things according to any one of claims 1-9 in an intelligent lighting desk lamp.

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