CN111200887A

CN111200887A - Wireless control device for LED lamp

Info

Publication number: CN111200887A
Application number: CN202010022429.6A
Authority: CN
Inventors: 陈玉辉; 李如平; 罗小勇
Original assignee: Cecep Latticelighting Co ltd
Current assignee: Cecep Latticelighting Co ltd
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2020-05-26

Abstract

The invention discloses a wireless control device of an LED lamp, which is connected between an AC-DC driving power supply and an LED light source in series, and comprises a voltage reduction circuit, a wireless communication circuit, a single chip microcomputer MCU1, a sampling circuit and a dimming driving circuit, wherein an operation program is arranged in the single chip microcomputer MCU1, and the LED lamp of the AC-DC driving power supply without dimming and auxiliary power supply output end is used.

Description

Wireless control device for LED lamp

Technical Field

The invention belongs to the technical field of electronic information, and particularly relates to a wireless control device for an LED lamp.

Background

Along with the popularization of the application of the 5G internet of things technology, the intelligent control of LED illumination gradually receives attention of people, and the wireless control technology of the LED lamp commonly used at present mainly remotely switches on and off the LED lamp, adjusts the brightness of the LED lamp, and reports technical parameter information of the lamp, such as working voltage, current, power and the like. The first type is as shown in fig. 1, the wireless control device is usually located at the front end of the AD-DC driving power supply and connected with the power dimming line through a set of signal lines to adjust the brightness of the lamp; secondly, as shown in fig. 2, the wireless control device is usually located at an auxiliary power end of the AD-DC driving power supply, and the AD-DC driving power supply provides power for the wireless control device to operate, and is connected with the power dimming line through a signal line to adjust the brightness of the lamp. The first scheme needs to supply power to a wireless controller single circuit and a lightning surge protection circuit, so that the production cost and the use failure rate of the controller are increased; the second scheme requires the AD-DC driving power supply to have an auxiliary power supply end output function, so that the technical difficulty and the production cost of the AD-DC driving power supply are increased. The traditional wireless controller scheme requires that the AD-DC driving power supply has a dimming function, the conventional AD-DC driving power supply does not have independent dimming and auxiliary power supply output ends, and the traditional wireless controller cannot be matched and transformed.

Disclosure of Invention

The invention provides a wireless control device for an LED lamp, which is used for solving the problem that the traditional control device is high in cost and failure rate and cannot be adapted when in control transformation due to high requirements on an AD-DC driving power supply.

In order to solve the technical problems, the invention is realized by the following technical scheme: a wireless control device of an LED lamp is connected with an AC-DC driving power supply and an LED light source, and is positioned behind the AC-DC driving power supply and in front of the LED light source.

Further, wireless control device includes step-down circuit, wireless communication circuit, singlechip MCU1, sampling circuit, the drive circuit that adjusts luminance, singlechip MCU1 includes pin VCC, pin PWM, pin TxD, pin RxD and public pin GND, set up the operation procedure in singlechip MCU1, the operation procedure can realize following function:

automatically receiving an instruction from the wireless communication circuit, decoding the instruction and making a corresponding action according to the instruction;

transmitting data to the wireless communication circuit;

outputting dimming and lamp switching signals to the dimming driving circuit;

and receiving voltage and current data from the sampling circuit and performing calculation processing.

Furthermore, a mains supply L, N outputs direct current V + and V-through the AC-DC driving power supply, one path of the direct current is converted by the voltage reduction circuit to output low voltage direct current VCC and GND, the low voltage direct current VCC and GND are divided into two paths to respectively supply power to the wireless communication circuit and the single-chip microcomputer MCU1, an output end of the wireless communication circuit is connected with a pin TxD and a pin RxD of the single-chip microcomputer MCU1 to realize a communication function, a pin Vf and a pin If of the single-chip microcomputer MCU1 are connected with the sampling circuit to collect parameters such as voltage and current, and a pin PWM of the single-chip microcomputer MCU1 is connected with the dimming driving circuit to realize corresponding on-off and dimming function control of the LED light source; the other path of V + and V-is output to the LED + and the LED-through the sampling circuit and the dimming drive circuit) and is connected with the LED light source.

Compared with the prior art, the invention has the following beneficial effects:

the wireless control device is connected between the AC-DC driving power supply and the LED light source in series, even if the common and conventional AC-DC driving power supply without the dimming and auxiliary power supply output end is used for the LED lamp, the purposes of adjusting the brightness, the working voltage, the current, the power and the like of the LED light source can be realized by directly connecting the wireless control device in series, and the wireless control device has absolute advantages in the aspects of power supply type selection and cost control; because the wireless control device is positioned at the rear end of the power supply, a lightning protection circuit does not need to be independently made, so that the cost of the wireless control device is lower; moreover, the wireless control device does not need to separately set an AC-DC power supply, so that the failure probability caused by the AC-DC power supply can be reduced by half.

Drawings

Fig. 1 is a connection relationship diagram of a conventional wireless control device for an LED lamp.

Fig. 2 is a connection relationship diagram of a wireless control device with an auxiliary power supply for a conventional LED lamp.

FIG. 3 is a connection diagram of the LED lamp wireless control device according to the present invention.

Fig. 4 is an internal structure diagram of the wireless control device of the LED lamp of the present invention.

Reference numerals: 1-a wireless control device; 2-AC-DC drive power supply; 3-an LED light source; 10-internal structure of LED lamp; 20-internal structure of LED lamp; 30-internal structure of LED lamp; 100-a voltage reduction circuit; 200-wireless communication circuitry; 300-single chip microcomputer MCU 1; 400-a sampling circuit; 500-a dimming driving circuit; 901-internal structure of wireless control device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 3 to 4, a wireless control device for an LED lamp 1 is located behind the AC-DC driving power supply 2 and in front of the LED light source 3.

Preferably, wireless control device 1 includes step-down circuit 100, wireless communication circuit 200, singlechip MCU1300, sampling circuit 400, dimming drive circuit 500, singlechip MCU1300 includes pin VCC, pin PWM, pin TxD, pin RxD and public pin GND, set up the operation procedure in singlechip MCU1300, the operation procedure can realize following function:

automatically receiving an instruction from the wireless communication circuit 200, decoding the instruction and performing corresponding action according to the instruction;

transmitting data to the wireless communication circuit 200;

outputting dimming and light-on/off signals to the dimming driving circuit 500;

the voltage and current data from the sampling circuit 400 are received and processed computationally.

Preferably, the utility power L, N outputs direct current V +, V-via the AC-DC driving power supply 2, and one path of the direct current is converted by the voltage-reducing circuit 100 to output low-voltage direct current VCC, GND, which are divided into two paths to respectively supply power to the wireless communication circuit 200 and the single-chip microcomputer MCU1300, the output end of the wireless communication circuit 200 is connected with the pin TxD and the pin RxD of the single-chip microcomputer MCU1300 to realize the communication function, the pin Vf and the pin If of the single-chip microcomputer MCU1300 are connected with the sampling circuit 400 to collect parameters such as voltage and current, and the pin PWM of the single-chip microcomputer MCU1300 is connected with the dimming driving circuit 500 to realize the function control of corresponding switching and dimming of the LED light source 3; the other path of V + and V-is output to the LED + and the LED-through the sampling circuit 400 and the dimming driving circuit 500, and is connected with the LED light source 3.

The foregoing lists merely illustrate specific embodiments of the invention. It is obvious that the invention is not limited to the above embodiments, but many similar modifications are possible, and all variations that can be derived or suggested from the disclosure of the invention by a person skilled in the art are to be considered within the scope of the invention as defined in the appended claims.

Claims

1. The LED lamp wireless control device is characterized in that the wireless control device (1) is connected with an AC-DC driving power supply (2) and an LED light source (3), the wireless control device (1) is located behind the AC-DC driving power supply (2), and the wireless control device (1) is located in front of the LED light source (3).

2. The wireless control device of claim 1, wherein the wireless control device (1) comprises a voltage reduction circuit (100), a wireless communication circuit (200), a single-chip microcomputer MCU1 (300), a sampling circuit (400), and a dimming driving circuit (500), the single-chip microcomputer MCU1 (300) comprises a pin VCC, a pin PWM, a pin TxD, a pin RxD, and a common pin GND, and an operation program is arranged in the single-chip microcomputer MCU1 (300), and the operation program can realize the following functions:

automatically receiving an instruction from the wireless communication circuit (200), decoding and performing corresponding action according to the instruction;

transmitting data to the wireless communication circuit (200);

outputting dimming and light on/off signals to the dimming driving circuit (500);

and receiving voltage and current data from the sampling circuit (400) and performing calculation processing.

3. The wireless control device of claim 1, wherein a commercial power L, N outputs a direct current V +, V-via the AC-DC driving power supply (2), and one of the direct currents is converted by the voltage-reducing circuit (100) to output a low-voltage direct current VCC and GND, the low-voltage direct current VCC and GND are divided into two paths to supply power to the wireless communication circuit (200) and the MCU1 (300), the output end of the wireless communication circuit (200) is connected to the pin TxD and the pin RxD of the MCU1 (300) to realize a communication function, the pin Vf and the pin If of the MCU1 (300) are connected to the sampling circuit (400) to collect parameters such as voltage and current, and the pin PWM of the MCU1 (300) is connected to the dimming driving circuit (500) to realize corresponding switching and switching of the LED light source (3), Function control of dimming; and the other path of V + and V-is output to the LED + and the LED-through the sampling circuit (400) and the dimming drive circuit (500) and is connected with the LED light source (3).