CN212936255U - Dimming control module of lighting lamp - Google Patents

Abstract

The utility model discloses a dimming control module of illumination lamps and lanterns. The dimming control module of the lighting lamp comprises an LED power circuit, an MCU, a Zigbee wireless module and a wireless control terminal, wherein the MCU is electrically connected with the LED power circuit, the Zigbee wireless module is electrically connected with the MCU, the wireless control terminal is in communication connection with the Zigbee wireless module, the LED power circuit comprises a constant current driving circuit and the LED lamp, the MCU is further provided with a PWM (pulse width modulation) output circuit, and the MCU is electrically connected with the constant current driving circuit through the PWM output circuit. The utility model discloses light modulation control module of illumination lamps and lanterns through adding at LED power supply circuit and establishing MCU and Zigbee wireless module, receives gateway dimming data through Zigbee wireless module to via MCU to the analytic corresponding PWM duty cycle of output of data to constant current drive circuit, realize the control regulation of luminance, colour temperature of LED lamps and lanterns.

Description

Dimming control module of lighting lamp

Technical Field

The utility model relates to an illumination lamps and lanterns field, in particular to light modulation control module of illumination lamps and lanterns.

Background

The existing lighting lamp basically belongs to an ON/OFF control mode, only can control the ON and OFF of the lamp, can not adjust the brightness, can not be linked with each other among the lamps, and can not carry out scene operation; occasionally, some LEDs can realize simple conversion of illumination of two color temperatures through a switch, but the conversion sequence is fixed, more changes cannot be made, and the requirements of people which are increasingly improved cannot be met.

Based on the control defects, the technical problems to be solved are as follows: the problems that the lamp control mode is single and the lamps cannot be linked are solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can realize the dimming control module of illumination lamps and lanterns of the control of luminance, colour temperature of light.

For realizing above-mentioned purpose, the utility model discloses a following technical scheme, the control module of adjusting luminance of illumination lamps and lanterns includes LED power supply circuit, still include with the MCU of LED power supply circuit electric connection, with the Zigbee wireless module of MCU electric connection, with the wireless control terminal that Zigbee wireless module communication is connected, LED power supply circuit includes constant current drive circuit and LED lamps and lanterns, MCU still is equipped with PWM output circuit, MCU passes through PWM output circuit and constant current drive circuit electric connection.

In some embodiments, the wireless control terminal includes a wireless router and a Zigbee gateway, and the wireless router and the Zigbee gateway are communicatively connected to the Zigbee wireless module.

In some embodiments, the wireless control terminal further includes an intelligent mobile terminal, and the intelligent mobile terminal is in wireless communication connection with the wireless router and the Zigbee gateway.

In some embodiments, the smart mobile terminal is a smartphone, a smart tablet, or a laptop.

In some embodiments, the Zigbee wireless module includes a wireless chip P1, the wireless chip P1 is TYZS7 module, and the wireless chip P1 is communicatively connected to the MCU through UART _ TX and UART _ RX pins.

In some embodiments, the MCU has a chip model of MS51FB9AE, a 2 nd pin of the MCU is electrically coupled to the UART _ RX pin of the wireless chip P1, and a 3 rd pin of the MCU is electrically coupled to the UART _ TX pin of the wireless chip P1.

In some embodiments, the MCU pins 13 and 14 output PWM signals and are electrically coupled to PWM output circuits, respectively.

In some embodiments, an indicator light LED2 is also included, indicator light LED2 is electrically coupled to MCU pin 19.

In some embodiments, the formula for the MCU to adjust the duty cycle of the PWM output circuit is:

Vch01＝(Max-B)*A/Max；

Vch02＝B*A/Max；

where a is luminance data, B is color temperature data, and Max represents the maximum value.

The utility model has the advantages that: the utility model discloses light modulation control module of illumination lamps and lanterns through adding at LED power supply circuit and establishing MCU and Zigbee wireless module, receives gateway dimming data through Zigbee wireless module to via MCU to the analytic corresponding PWM duty cycle of output of data to constant current drive circuit, realize the control regulation of luminance, colour temperature of LED lamps and lanterns.

Drawings

Fig. 1 is a schematic diagram of a frame structure of a dimming control module of the lighting fixture of the present invention;

fig. 2 is a schematic circuit diagram of a Zigbee wireless module according to the present invention;

FIG. 3 is a schematic diagram of the MCU circuit of the present invention;

fig. 4 is a schematic circuit diagram of a DMX512 receiving circuit according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, the dimming control module of the lighting fixture includes an LED power circuit, an MCU electrically connected to the LED power circuit, a Zigbee wireless module electrically connected to the MCU, and a wireless control terminal in communication connection with the Zigbee wireless module, the LED power circuit includes a constant current driving circuit and an LED fixture, the MCU further includes a PWM output circuit, and the MCU is electrically connected to the constant current driving circuit through the PWM output circuit.

The wireless control terminal comprises a wireless router and a Zigbee gateway, and the wireless router and the Zigbee gateway are in communication connection with the Zigbee wireless module.

The wireless control terminal further comprises an intelligent mobile terminal, and the intelligent mobile terminal is in wireless communication connection with the wireless router and the Zigbee gateway.

The intelligent mobile terminal is a smart phone, a smart tablet and a notebook computer.

As shown in fig. 2, the Zigbee wireless module includes a wireless chip P1, the wireless chip P1 is a TYZS7 module, and the wireless chip P1 is communicatively connected to the MCU through UART _ TX and UART _ RX pins.

As shown in fig. 3 and 4, the MCU has a chip model of MS51FB9AE, a 2 nd pin of the MCU is electrically connected to the UART _ RX pin of the wireless chip P1, and a 3 rd pin of the MCU is electrically connected to the UART _ TX pin of the wireless chip P1.

The 13 th pin and the 14 th pin of the MCU output PWM signals and are respectively electrically connected with a PWM output circuit.

The Zigbee wireless module adopts a single-sided surface-mounted design, and the wireless chip P1 supports an online burning program; and the engineering debugging is convenient.

The intelligent mobile terminal issues brightness and color temperature parameters to be adjusted, and brightness and color temperature data are issued to the MCU through a zigbee wireless module or DMX512 equipment; the MCU calculates the received brightness and color temperature data according to a constant power formula to obtain the PWM duty ratio of a channel 1 and the PWM2 duty ratio of a channel 2; the MCU outputs the duty ratios of the channel 1 and the channel 2 to the constant current driving circuit, and then constant power control of the LED lamp can be achieved.

The constant power calculation formula is as follows:

a: representing luminance data (0-1000) issued by zigbee;

b: representing color temperature data (0-1000) issued by zigbee;

max: represents a maximum value equal to 1000;

vch 01: represents channel 1 duty cycle;

vch 02: represents the channel 2 duty cycle;

duty ratio: using a value of 0-1000 to represent a duty cycle of 0% -100%;

the channel 1, channel 2 duty cycle is calculated as follows:

Vch01＝(Max-B)*A/Max；

Vch02＝B*A/Max；

this example illustrates two examples:

example 1: when the microprocessor receives the luminance data a of 1000, the color temperature data B of 200, and the maximum color temperature Max of 1000, the duty ratios of the output channel Vch01 and the output channel Vch02 are:

Vch01＝(1000-200)*1000/1000＝800＝80％；

Vch02＝200*1000/1000＝200＝20％；

remarking: brightness 1000 100% power output.

Example 2: when the microprocessor receives the luminance data a of 800, the color temperature data B of 200, and the maximum color temperature Max of 1000, the duty ratios of the output channel Vch01 and the output channel Vch02 are:

Vch01＝(1000-200)*800/1000＝640＝64％；

Vch02＝200*800/1000＝160＝16％；

remarking: and (7) power output of 800-80%.

The utility model discloses light modulation control module of illumination lamps and lanterns, through set up Zigbee wireless module and MCU in LED power supply circuit, read Zigbee wireless module's serial port signal through MCU, convert PWM signal into, pass through PWM output circuit with the PWM signal and input to constant current drive circuit, and realize adjusting luminance to LED lamps and lanterns through changing the PWM duty cycle, can also realize wireless control and adjust luminance through APP wireless communication wireless router and the Zigbee gateway that the removal can only be at terminal, very convenient facility, be fit for promoting.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims (9)

1. The dimming control module of the lighting lamp comprises an LED power supply circuit and is characterized by further comprising an MCU, a Zigbee wireless module and a wireless control terminal, wherein the MCU is electrically connected with the LED power supply circuit, the Zigbee wireless module is electrically connected with the MCU, the wireless control terminal is in communication connection with the Zigbee wireless module, the LED power supply circuit comprises a constant current driving circuit and an LED lamp, the MCU is further provided with a PWM output circuit, the MCU is electrically connected with the constant current driving circuit through the PWM output circuit, the wireless control terminal sends luminance and color temperature data, and the MCU adjusts the duty ratio of the PWM output circuit according to the luminance and color temperature data.

2. The dimming control module of a lighting fixture according to claim 1, wherein the wireless control terminal comprises a wireless router and a Zigbee gateway, and the wireless router and the Zigbee gateway are in communication connection with the Zigbee wireless module.

3. The dimming control module of claim 2, wherein the wireless control terminal further comprises an intelligent mobile terminal, the intelligent mobile terminal is in wireless communication connection with the wireless router and the Zigbee gateway, and the intelligent mobile terminal sets and issues brightness and color temperature data.

4. The dimming control module of a lighting fixture according to claim 3, wherein the smart mobile terminal is a smart phone, a smart tablet, or a notebook.

5. The dimming control module of claim 1, wherein the Zigbee wireless module comprises a wireless chip P1, the wireless chip P1 is a TYZS7 module, and the wireless chip P1 is communicatively connected to the MCU through UART _ TX and UART _ RX pins.

6. The dimming control module of claim 5, wherein the MCU has a chip model of MS51FB9AE, the MCU No. 2 pin is electrically coupled to the UART _ RX pin of the wireless chip P1, and the MCU No. 3 pin is electrically coupled to the UART _ TX pin of the wireless chip P1.

7. The dimming control module of a lighting fixture according to claim 6, wherein the MCU pin 13 and 14 outputs PWM signals and is electrically coupled to the PWM output circuit respectively.

8. The dimming control module of a lighting fixture of claim 6, further comprising an indicator LED2, the indicator LED2 electrically coupled with the MCU pin 19.

9. The dimming control module of claim 1, wherein the formula for the MCU to adjust the duty cycle of the PWM output circuit is:

Vch01＝(Max-B)*A/Max；

Vch02＝B*A/Max；

where a is luminance data, B is color temperature data, and Max represents the maximum value.

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