CN117835487A

CN117835487A - Dimming control system

Info

Publication number: CN117835487A
Application number: CN202211215924.4A
Authority: CN
Inventors: 尤德华; 陈刚; 夏立波; 马山; 龚余弟
Original assignee: Shanghai Youzhiren Technology Co ltd
Current assignee: Shanghai Youzhiren Technology Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-30
Publication date: 2024-04-05
Also published as: CN218162941U

Abstract

The invention provides a dimming control system, which comprises a dimming panel and a dimmable lamp; the dimming panel and the dimmable lamp are controlled by a wireless protocol, and a mechanical switch, a power-taking circuit, an input circuit, a first dimming control circuit, a first wireless circuit and a protection circuit are arranged in the dimming panel; the power-taking circuit is connected with the protection circuit; the mechanical switch is respectively connected with the protection circuit and the mains supply fire wire; the protection circuit is also connected with the first dimming control circuit and the first wireless circuit; the adjustable light fixture is also connected with a mains supply zero line; the first dimming control circuit is respectively connected with the input circuit and the first wireless circuit; the invention provides a novel dimming control system, which realizes dimming control of a dimmable lamp through a dimming panel, has a simple overall structure, is convenient to operate, can be controlled at any time, is suitable for any scene, and further better solves the problem of poor dimming use experience and installation and debugging experience.

Description

Dimming control system

Technical Field

The invention belongs to the field of electricity, and particularly relates to a dimming technology, in particular to a dimming control system.

Background

Along with the continuous improvement of living standard, the demand of people for light is from single lighting space before to the demand of different lights of different scenes today, so the demand of dimming and toning is growing.

The current dimming modes in the market include: silicon controlled rectifier phase-cut dimming, remote controller dimming, mobile phone APP dimming, intelligent voice dimming and the like. These dimming modes are limited and imperfect to some extent, thereby bringing bad dimming use experience and installation and debugging experience to users. For example, the silicon controlled rectifier phase-cut dimming technology connects the controller with the lamp in series, and the single fire installation can directly replace a mechanical switch, but the light source has little selectivity, only can dim an incandescent lamp and a small number of special lamps, has a small dimming range, only can dim brightness, and cannot dim color temperature. The remote controller dimming mode is convenient to install, but the remote controller is easy to lose, inconvenient to use, and the remote controller cannot control after the lamp is closed by the wall switch. The mobile phone APP dimming mode can intuitively dim and color, but the operation is complex by opening the mobile phone, opening the APP, finding the lamp and entering the control interface. The intelligent voice dimming mode does not need to be operated manually, but has a plurality of limitations on application scenes, and is not suitable for application in noisy environments or at night.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a dimming control system, which is used for solving the problem of poor dimming use experience and installation and debugging experience in the existing dimming control method.

To achieve the above and other related objects, the present invention provides a dimming control system, including a dimming panel and a dimmable lamp; the dimming panel is controlled by a wireless protocol, and a mechanical switch, a power taking circuit, an input circuit, a first dimming control circuit, a first wireless circuit and a protection circuit are arranged in the dimming panel; the power taking circuit is connected with the protection circuit; the mechanical switch is respectively connected with the protection circuit and the mains supply fire wire; the protection circuit is also connected with the first dimming control circuit and the first wireless circuit; the adjustable light fixture is also connected with a mains supply zero line; the first dimming control circuit is respectively connected with the input circuit and the first wireless circuit; in the dimming control process, a dimming command is input through the input circuit, and the first dimming control circuit receives the dimming command and generates a control command based on the dimming command so as to send the control command to the dimmable lamp through the first wireless circuit.

In an embodiment of the present invention, the power supply circuit adopts a single-fire power supply circuit; the first end of the single-fire electricity taking and supplying circuit is connected with the first end of the adjustable light lamp, and the second end of the adjustable light lamp is connected with the mains supply zero line.

In an embodiment of the present invention, the power supply circuit adopts a zero live wire power supply circuit; the zero-live wire power taking and supplying circuit comprises a power taking and supplying circuit and a capacitor; the first end of the electricity taking and supplying circuit is connected with one end of the capacitor, and the other end of the capacitor is connected with the mains supply zero line; the first end of the adjustable light fixture is connected with the mains supply fire wire, and the second end of the adjustable light fixture is connected with the mains supply zero wire.

In an embodiment of the invention, the input circuit includes a rotary encoder and at least two keys; the rotary knob of the rotary encoder rotates anticlockwise and clockwise to enable the rotary encoder to respectively generate two groups of square waves, and phase differences exist between the two groups of square waves so as to realize operation identification of the anticlockwise and clockwise rotary knob; one of the keys is used for scene switching; the other key is used for brightness/color temperature mode switching.

In an embodiment of the invention, the first dimming control circuit includes an MCU; and a dimming control program is arranged in the MCU.

In one embodiment of the present invention, the first radio circuit is an RF radio circuit, and the first radio circuit comprises a 2.4GHz or 433MHz radio signal.

In an embodiment of the invention, the protection circuit includes a current fuse, a temperature fuse and a first linear voltage-reducing circuit; the first linear voltage reduction circuit is connected with the power taking circuit, the first dimming control circuit and the first wireless circuit respectively; one end of the current fuse is connected with the power taking circuit, and the other end of the current fuse is connected with one end of the temperature fuse; the other end of the temperature fuse is connected with one end of the mechanical switch.

In an embodiment of the invention, the dimmable lamp includes an adaptive power supply, a PWM switching device, a second linear buck circuit, a second dimming control circuit, a second wireless circuit, and at least two sets of LED light sources with different color temperatures; the adaptive power supply is respectively connected with the mains supply zero line, the second linear voltage reduction circuit and at least two groups of LED light sources; at least two groups of LED light sources are also connected with the PWM switching device; the PWM switching device is also connected with the second dimming control circuit; the second dimming control circuit is also respectively connected with the second linear voltage dropping circuit and the second wireless circuit; the second wireless circuit and the first wireless circuit are controlled by the wireless protocol; each LED light source comprises a plurality of LED lamps.

In an embodiment of the present invention, the wireless protocol at least includes any one of the following protocols: bluetooth protocol, zigBee protocol, WIFI protocol.

As described above, the dimming control system of the present invention has the following advantages:

compared with the prior art, the novel dimming control system provided by the invention has the advantages that the dimming control of the dimmable lamp is realized through the dimming panel, the whole system is simple in structure and convenient to operate, the lamp can be controlled at any time and is suitable for any scene, and therefore, the problem that dimming use experience and installation and debugging experience are poor is better solved.

Drawings

Fig. 1 is a schematic diagram of a dimming control system according to an embodiment of the invention.

Fig. 2 is a schematic diagram of a dimming control system according to another embodiment of the invention.

Fig. 3 is a schematic diagram of a dimming control system according to another embodiment of the invention.

Fig. 4A to fig. 4E are schematic structural diagrams of an input circuit according to an embodiment of the invention.

Fig. 5A to 5D are schematic structural diagrams of a rotary encoder according to an embodiment of the invention.

Fig. 6 is a schematic diagram illustrating the operation of the rotary encoder according to an embodiment of the present invention.

FIG. 7 is a schematic diagram of a square wave generated by the rotary encoder according to the present invention in an embodiment.

FIG. 8 is a schematic diagram of the phase difference between square waves generated by the counter-clockwise rotation and the clockwise rotation of the encoder according to the present invention in one embodiment.

Fig. 9 is a schematic structural diagram of a connection mode of a dimming panel and a dimmable lamp according to an embodiment of the present invention.

Fig. 10 is a schematic structural diagram of a key according to an embodiment of the invention.

Detailed Description

The following specific examples are presented to illustrate the present invention, and those skilled in the art will readily appreciate the additional advantages and capabilities of the present invention as disclosed herein. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.

It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the illustrations, not according to the number, shape and size of the components in actual implementation, and the form, number and proportion of each component in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.

Compared with the prior art, the dimming control system provided by the invention has the advantages that the dimming control of the dimmable lamp is realized through the dimming panel, the whole structure of the system is simple, the operation is convenient, the lamp can be controlled at any time, and the dimming control system is suitable for any scene, so that the problem of poor dimming use experience and installation and debugging experience is better solved.

As shown in fig. 1, in an embodiment, the dimming control system of the present invention includes a dimming panel 11 and a dimmable lamp 12.

As shown in fig. 2, 3 and 9, the dimming panel 11 has two mounting connection modes:

1) As shown in fig. 2 and 9 (single fire zero fire 2 in 1 in wall), in an embodiment, the dimming panel 11 (corresponding to the dimming and toning panel in fig. 9) is like a traditional silicon controlled dimming mode, and the dimming panel 11 and the dimmable lamp 12 (corresponding to the dimming and toning intelligent lamp in fig. 9) are connected in series by a single fire wire connection mode.

2) As shown in fig. 3 and 9, in one embodiment, the dimming panel 11 is powered by a neutral wire.

Note that "Input1" and "Input2" in fig. 1, 2, and 3 correspond to inputs of switches or keys.

Specifically, the dimming panel 11 and the dimmable lamp 12 are controlled by a wireless protocol, and a mechanical switch SW, a power taking circuit 111, an input circuit, a first dimming control circuit, a first wireless circuit and a protection circuit are arranged in the dimming panel 11; wherein, the power taking circuit 111 is connected with the protection circuit; the mechanical switch SW is respectively connected with the protection circuit and the mains supply fire wire L; the protection circuit is also connected with the first dimming control circuit and the first wireless circuit; the dimmable lamp 12 is also connected with a mains supply zero line N; the first dimming control circuit is connected with the input circuit and the first wireless circuit respectively.

It should be noted that, in the dimming control process, a dimming command is input through the input circuit, the first dimming control circuit receives the dimming command and generates a control command based on the dimming command, so as to send the control command to the dimmable lamp 12 through the first wireless circuit.

It should be noted that, the mechanical switch SW can control the power supply of the dimming panel 11 and the power supply of the dimmable lamp 12, so that the dimmable lamp 12 can be powered off, powered on, and cold started to enter a pairing mode; it may also be convenient for a user to physically power down to ensure operational safety when replacing or servicing the dimmable light fixture 12.

In one embodiment, the dimming panel 11 is compatible with single fire and zero fire; the model is K60; the specification is 250V-50/60 Hz; the load range is 3W-1000W; the current fuse is 250V6.3A; the temperature fuse was 105 degrees 6.3A.

In one embodiment, the wireless protocol includes, but is not limited to, any one of the following: bluetooth protocol, zigBee protocol, WIFI protocol.

In one embodiment, as shown in fig. 2, the power supply circuit 111 is a single-fire power supply circuit.

Specifically, a first end (1) of the single-fire power supply circuit is connected with a first end (1) of the dimmable lamp 12, and a second end (2) of the dimmable lamp is connected with the mains zero line N.

It should be noted that, as shown in fig. 2, the single-fire power supply circuit mainly comprises a MOS transistor (corresponding to Q23 and Q24 in fig. 2), a rectifier diode (corresponding to D8, D12, D10 and D11 in fig. 2), a driving chip, a voltage regulator transistor (corresponding to ZD4 in fig. 2), an LED (corresponding to LED7 in fig. 2), and the like; specifically, the single fire power supply circuit is connected in series with the dimmable lamp 12; when the dimmable lamp 12 is in a conducting working state, the driving chip and the voltage stabilizing tube provide power-taking voltage stabilizing and MOS tube grid switch oscillation driving; when the MOS tube is turned off, the current flowing through the dimming panel 11 is output by D8, D12, D10 and D11 in FIG. 2 to be taken out, the working current of the related circuit of the dimming panel is supplied, and the current returns to the neutral line (zero line) through the dimmable lamp 12 after passing through the dimming panel 11 and the related circuit; when the current is enough to be taken out and reaches the power-taking voltage required by the circuit, the reference voltage consisting of the voltage dividing circuit formed by ZD2, R49, R50 and C21 in the figure 2, R48 and the LED7 is compared at the operational amplifier input end and then is output to turn on MOS, and the current directly flows through the MOS tube and then flows back to the central line (zero line) through the dimmable lamp 12; the MOS tube works in an oscillation switch mode under the control of the driving chip.

As shown in fig. 3, in one embodiment, the power supply circuit 111 uses a zero-live power supply circuit; the zero firing line power taking and supplying circuit comprises a power taking and supplying circuit and a capacitor C39.

Specifically, a first end (1) of the electricity taking and supplying circuit is connected with one end of the capacitor C39, and the other end of the capacitor C39 is connected with the mains supply zero line N; the first end (1) of the adjustable light fixture 12 is connected with the mains power live wire L, and the second end (2) of the adjustable light fixture 12 is connected with the mains power zero wire N.

In an embodiment, the power supply circuit is the same as the single-fire power supply circuit.

It should be noted that, if the dimming panel 11 is connected to the zero line, the capacitor C39 replaces the function of the dimmable lamp 12, and the capacitor C39 with high voltage will be equal to the load impedance in the ac mode, so as to provide the dimming panel working current.

Further, the power taking principle of the zero-live wire power taking and supplying circuit is the same as that of the single-live wire power taking and supplying circuit, so that detailed description is omitted here.

As shown in fig. 4A to 4E, 8 and 10, in one embodiment, the input circuit includes a rotary encoder SW5 and at least two keys.

Specifically, the rotation of the knob of the rotary encoder SW5 in the counterclockwise direction and the clockwise direction can make the rotary encoder SW5 generate two groups of square waves respectively, and a phase difference exists between the two groups of square waves, so as to realize the operation identification of the knob in the counterclockwise direction and the clockwise direction; one of the keys is used for scene switching; the other key is used for brightness/color temperature mode switching.

It should be noted that, fig. 4A is a schematic structural diagram of a dimming and toning indicator lamp on the dimming panel 11 in an embodiment; FIG. 4B is a schematic diagram of a structure of two keys in one embodiment; FIG. 4C is a schematic diagram of a power panel and a socket according to an embodiment; fig. 4E shows a circuit diagram of a rotary encoder in one embodiment.

As shown in fig. 4A to 4E, the rotary encoder SW5 has 3 mechanical contacts thereon, wherein two mechanical contacts alternately contact during rotation to generate two sets of square waves with a phase difference; specifically, as shown in fig. 5A to 5D, the rotary encoder SW5 has 3 pins, respectively: A. c, B; as shown in fig. 6, pin A, B is pulled high by a circuit and pin C is grounded.

It should be noted that fig. 5A is a side view of the rotary encoder in one embodiment; FIG. 5B is a front view of a rotary encoder in one embodiment; FIG. 5C is a schematic diagram showing the structure of the D-E foot switch of FIG. 5B according to one embodiment; fig. 5D shows a pin diagram of a rotary encoder provided on a PCB in one embodiment.

As shown in fig. 7, the counterclockwise rotation and the clockwise rotation of the rotary encoder SW5 can generate two groups of square waves of AC and BC, respectively, and as shown in fig. 8, a phase difference exists between the two groups of square waves of AC and BC, so that the operation recognition of the knob rotating counterclockwise and clockwise can be realized; meanwhile, the knob encoder SW5 has keys, and functions can be realized by a pressing operation.

It should be noted that, for the counterclockwise operation and the clockwise operation of the knob, the functional logic of brightness adjustment and color temperature adjustment is defined through a software algorithm (the counterclockwise operation can be defined as brightness adjustment, the clockwise operation can be defined as color temperature adjustment, the counterclockwise operation can also be defined as color temperature adjustment, and the clockwise operation can be defined as brightness adjustment); for 2 keys SW1 (left key) and SW2 (right key), respectively defining the left key as a scene switching function by software, and defining the right key as a brightness/color temperature mode switching function (the right key can also be defined as the scene switching function, and the left key as the brightness/color temperature mode switching function); in addition, the brightness/color temperature adjusting function is realized by combining a knob operation, as shown in fig. 10.

In one embodiment, the first dimming control circuit comprises an MCU; and a dimming control program is arranged in the MCU.

In one embodiment, the first radio circuit employs wireless signals including, but not limited to, 2.4GHz or 433MHz, and the first radio circuit is an RF radio circuit.

Specifically, the RF wireless circuit includes an RF radio frequency circuit and a radio frequency antenna.

As shown in fig. 1, 2 and 3, in one embodiment, the protection circuit includes a current fuse F1, a temperature fuse F2 and a first linear voltage step-down circuit 112.

As shown in fig. 1, the gate of the power taking circuit 111 needs to have a voltage of 10V or more, and the MCU and the RF circuit of the dimming panel 11 need to have a 3-3.6V operating voltage, so that the power voltage of the power taking circuit 111 needs to be reduced and then supplied to the MCU and the RF circuit.

As shown in fig. 1, 2 and 3, in one embodiment, the first linear voltage reducing circuit 112 uses an LDO linear voltage reducing power supply U2 to reduce the voltage above 10V to a voltage between 3 and 3.6V; because the power of the dimmable lamp 12 controlled by the dimming panel 11 can reach 1000W, an over-current over-temperature protection circuit is designed; specifically, the overcurrent and overtemperature protection circuit comprises a current fuse F1 and a temperature fuse F2, wherein the current fuse F1 is fused when the power of a connected load seriously exceeds the standard or is in short circuit, so that the protection effect is achieved; when the load power exceeds the standard, the temperature fuse F2 is fused due to overheat of the circuit, so that the protection function is realized.

Specifically, the first linear step-down circuit 112 is connected to the power supply circuit 111, the first dimming control circuit, and the first wireless circuit, respectively; one end of the current fuse F1 is connected to the power supply circuit 111, and the other end of the current fuse F1 is connected to one end of the temperature fuse F2; the other end of the thermal fuse F2 is connected with one end of the mechanical switch SW, and the other end of the mechanical switch SW is connected with the commercial power fire wire L.

As shown in fig. 1, 2 and 3, in one embodiment, the dimmable lamp 12 includes an adaptive power supply, a PWM switching device, a second linear buck circuit, a second dimming control circuit, a second wireless circuit and at least two sets of LED light sources with different color temperatures.

Specifically, the adaptive power supply is respectively connected with the mains supply zero line N, the second linear voltage reduction circuit and at least two groups of LED light sources (when the power supply circuit adopts a single-fire power supply circuit, the adaptive power supply is also connected with the single-fire power supply circuit); at least two groups of LED light sources are also connected with the PWM switching device; the PWM switching device is also connected with the second dimming control circuit; the second dimming control circuit is also respectively connected with the second linear voltage dropping circuit and the second wireless circuit; the second wireless circuit and the first wireless circuit are controlled by the wireless protocol.

It should be noted that the adaptive power supply is used to provide the LED light source with appropriate operating voltage and operating current.

In an embodiment, each of the LED light sources includes a plurality of LED lamps.

As shown in fig. 1, 2 and 3, the dimmable lamp 12 includes two groups of LED light sources with different color temperatures, corresponding to the LEDs 1 and 2 in fig. 1, 2 and 3, respectively, wherein the LED1 includes n LED lamps, corresponding to the LEDs 1-1 to 1-n in fig. 1, 2 and 3, respectively; the LEDs 2 comprise n LED lamps, which correspond to the LEDs 2-1 to 2-n in the figures 1, 2 and 3 respectively.

In one embodiment, the LED lamp uses 2 color temperatures of 2700K warm white light and 6500K cool white light.

It should be noted that the PWM switching device is used to control the on and adjust the brightness of the LED light source, and the PWM switching device adopts a driving chip circuit including, but not limited to, a triode, a MOS transistor, and a switching device.

Further, the second dimming control circuit comprises an MCU; the second radio circuit is an RF radio circuit.

Specifically, the RF wireless circuit, after receiving the control command sent by the dimming panel 11, sends the control command to the MCU of the second dimming control circuit, so as to be converted into a control of the LED light source switch or PWM brightness adjustment, PWM color temperature adjustment by the second dimming control circuit.

It should be noted that the dimming method in the prior art has the following problems:

(1) Silicon controlled rectifier phase-cut dimming; the light source has low selectivity, can only adjust light for an incandescent lamp and a small number of special lamps, has a small light adjusting range, can only adjust brightness, and cannot adjust color temperature.

(2) Dimming by a remote controller; the remote controller is easy to lose, the use is inconvenient, and the remote controller can not control the lamp after the lamp is closed by the wall switch.

(3) Dimming the mobile phone APP; the operation is complicated by opening the mobile phone, opening the APP, finding the lamp and entering the control interface.

(4) Intelligent voice dimming; there are many limitations on application scenarios, which are not suitable for applications in noisy environments or overnight.

The invention provides a novel dimming control method which can better solve the problem of poor dimming use experience and installation and debugging experience.

It should be noted that, the wireless network of the dimming panel of the invention can realize dimming, color mixing and scene adjustment without a gateway; the 1 dimming panel can control 300+ lamps simultaneously, and the 1 lamp can be controlled by 6 dimming panels at most.

In summary, compared with the prior art, the dimming control system provided by the invention has the advantages that the dimming control of the dimmable lamp is realized through the dimming panel, the whole structure of the system is simple, the operation is convenient, the lamp can be controlled at any time, and the dimming control system is suitable for any scene, so that the problem of poor dimming use experience and installation and debugging experience is better solved; therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. The dimming control system is characterized by comprising a dimming panel and a dimmable lamp;

the dimming panel is controlled by a wireless protocol, and a mechanical switch, a power taking circuit, an input circuit, a first dimming control circuit, a first wireless circuit and a protection circuit are arranged in the dimming panel; wherein,

the power taking circuit is connected with the protection circuit; the mechanical switch is respectively connected with the protection circuit and the mains supply fire wire; the protection circuit is also connected with the first dimming control circuit and the first wireless circuit; the adjustable light fixture is also connected with a mains supply zero line; the first dimming control circuit is respectively connected with the input circuit and the first wireless circuit;

in the dimming control process, a dimming command is input through the input circuit, and the first dimming control circuit receives the dimming command and generates a control command based on the dimming command so as to send the control command to the dimmable lamp through the first wireless circuit.

2. The dimming control system of claim 1, wherein the power take-off circuit employs a single fire power take-off power supply circuit; the first end of the single-fire electricity taking and supplying circuit is connected with the first end of the adjustable light lamp, and the second end of the adjustable light lamp is connected with the mains supply zero line.

3. The dimming control system of claim 1, wherein the power extraction circuit employs a zero fire line power extraction supply circuit; the zero-live wire power taking and supplying circuit comprises a power taking and supplying circuit and a capacitor;

the first end of the electricity taking and supplying circuit is connected with one end of the capacitor, and the other end of the capacitor is connected with the mains supply zero line; the first end of the adjustable light fixture is connected with the mains supply fire wire, and the second end of the adjustable light fixture is connected with the mains supply zero wire.

4. The dimming control system of claim 1, wherein the input circuit comprises a rotary encoder and at least two keys;

the rotary knob of the rotary encoder rotates anticlockwise and clockwise to enable the rotary encoder to respectively generate two groups of square waves, and phase differences exist between the two groups of square waves so as to realize operation identification of the anticlockwise and clockwise rotary knob;

one of the keys is used for scene switching; the other key is used for brightness/color temperature mode switching.

5. The dimming control system of claim 1, wherein the first dimming control circuit comprises an MCU; and a dimming control program is arranged in the MCU.

6. The dimming control system of claim 1, wherein the first wireless circuit employs a wireless signal comprising 2.4GHz or 433MHz, the first wireless circuit being an RF wireless circuit.

7. The dimming control system of claim 1, wherein the protection circuit comprises a current fuse, a temperature fuse, and a first linear buck circuit; wherein,

the first linear voltage reduction circuit is respectively connected with the power taking circuit, the first dimming control circuit and the first wireless circuit; one end of the current fuse is connected with the power taking circuit, and the other end of the current fuse is connected with one end of the temperature fuse; the other end of the temperature fuse is connected with one end of the mechanical switch.

8. The dimming control system of claim 1, wherein the dimmable light fixture comprises an adaptive power supply, a PWM switching device, a second linear buck circuit, a second dimming control circuit, a second wireless circuit, and at least two sets of LED light sources of different color temperatures; wherein,

the adaptive power supply is respectively connected with the mains supply zero line, the second linear voltage reduction circuit and at least two groups of LED light sources; at least two groups of LED light sources are also connected with the PWM switching device; the PWM switching device is also connected with the second dimming control circuit; the second dimming control circuit is also respectively connected with the second linear voltage dropping circuit and the second wireless circuit; the second wireless circuit and the first wireless circuit are controlled by the wireless protocol;

each LED light source comprises a plurality of LED lamps.

9. The dimming control system of claim 1, wherein the wireless protocol comprises at least any one of: bluetooth protocol, zigBee protocol, WIFI protocol.