CN109899697B - A light string with power line communication and control method thereof - Google Patents

Abstract

The present invention discloses a light string for power line communication and a control method thereof. The light string for power line communication comprises a master controller, a first light string and a first sub-controller; the first light string comprises a positive pin and a negative pin; the master controller is connected in parallel with the first light string, the master controller is electrically connected to the positive pin; the first sub-controller is electrically connected to the negative pin, the first light string and the first sub-controller constitute a first light-emitting unit; the first sub-controller is electrically connected to the master controller; an oscillation signal is input into direct current through the master controller, so that the oscillation signal is transmitted through the power supply line of the first light-emitting unit, thereby reducing the wiring requirements of the light string for power line communication, facilitating the wiring of the light string for power line communication, and reducing the cost.

Description

A light string with power line communication and control method thereof

Technical Field

The invention relates to a light string with power line communication and a control method thereof.

Background Art

The existing light strings adopt a three-wire mode of a positive line, a negative line and a control line, which is not conducive to the layout of the light string lines and the use in special occasions.

Summary of the invention

In order to solve the above technical problems, the present invention provides a light string with power line communication and a control method thereof.

The technical solution of the present invention is: the light string for power line communication includes a main controller, a first light string and a first sub-controller; the first light string includes a positive pin and a negative pin; the main controller is connected in parallel with the first light string, and the main controller is electrically connected to the positive pin; the first sub-controller is electrically connected to the negative pin, and the first light string and the first sub-controller constitute a first light-emitting unit; the first sub-controller is electrically connected to the main controller.

Furthermore, the light string for power line communication includes an AC-DC voltage converter, which is used to convert alternating current into direct current; the AC-DC voltage converter includes a positive input terminal, a negative input terminal and an AC input terminal; the positive input terminal is electrically connected to the positive pin; the negative input terminal is electrically connected to the first sub-controller; the AC input terminal is used to connect the light string for power line communication to alternating current.

Furthermore, the light string for power line communication includes a second light string and a second sub-controller, the second light string and the second sub-controller are electrically connected to form a second light-emitting unit; the second light-emitting unit is connected in parallel with the first light-emitting unit.

A light string control method using power line communication;

The first light string is electrically connected to the first sub-controller to form a first light-emitting unit;

Connect the first light-emitting unit to the main controller in parallel and connect them to direct current;

The main controller outputs an oscillation signal so that the direct current entering the first light-emitting unit is oscillating direct current, and the oscillating direct current provides luminous electrical energy for the first light-emitting unit; the first sub-controller extracts the oscillation signal in the oscillating direct current and controls the first light string according to the first setting parameter of the first sub-controller.

Furthermore, the second light string is electrically connected to the second sub-controller to form a second light-emitting unit, and the second light-emitting unit is connected in parallel to the main controller and connected to direct current; the oscillating direct current provides light-emitting power for the second light-emitting unit; the second sub-controller extracts the oscillation signal in the oscillating direct current and controls the second light string according to the second setting parameters of the second sub-controller.

Furthermore, an AC-DC voltage converter is connected in parallel with the main controller, and the AC-DC voltage converter outputs direct current after receiving alternating current.

Furthermore, the AC-DC voltage converter is provided with a maximum voltage threshold and a minimum voltage threshold; and the oscillating direct current voltage value is between the maximum voltage threshold and the minimum voltage threshold.

The beneficial effect of the present invention is that an oscillation signal is input into the direct current through the main controller, so that the oscillation signal is transmitted through the power supply line of the first light-emitting unit, thereby reducing the wiring requirements of the light string for power line communication, facilitating the wiring of the light string for power line communication, and reducing costs.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of the structure of a light string with power line communication according to the present invention.

DETAILED DESCRIPTION

To facilitate those skilled in the art to understand the technical solution of the present invention, the technical solution of the present invention is further described in detail below in conjunction with specific embodiments.

As shown in Figure 1, the light string 100 for power line communication includes a main controller 30, a first light string 21 and a first sub-controller 211; the first light string 21 includes a positive pin and a negative pin; the main controller 30 is connected in parallel with the first light string 21, and the main controller 30 is electrically connected to the positive pin; the first sub-controller 211 is electrically connected to the negative pin, and the first light string 21 and the first sub-controller 211 constitute a first light-emitting unit 201; the first sub-controller 211 is electrically connected to the main controller 30; by connecting the first light-emitting unit 201 to direct current and then connecting it in parallel with the main controller 30, an oscillation signal is input into the direct current through the main controller 30, so that the oscillation signal is transmitted through the power supply line of the first light-emitting unit 201, thereby reducing the wiring requirements of the light string 100 for power line communication, facilitating the wiring of the light string 100 for power line communication, and reducing costs.

As shown in Figure 1, the power line communication light string 100 includes an AC-DC voltage converter 40, and the AC-DC voltage converter 40 is used to convert alternating current into direct current; the AC-DC voltage converter 40 includes a positive input terminal, a negative input terminal and an AC input terminal; the positive input terminal is electrically connected to the positive pin; the negative input terminal is electrically connected to the first sub-controller 211; the AC input terminal is used to connect the power line communication light string 100 to alternating current; thereby meeting the use requirement of directly connecting the power line communication light string 100 to alternating current, and facilitating the application and promotion of the power line communication light string 100.

As shown in Figure 1, the light string 100 for power line communication includes a second light string 22 and a second sub-controller 221, and the second light string 22 is electrically connected to the second sub-controller 221 to form a second light-emitting unit 202; the second light-emitting unit 202 is connected in parallel with the first light-emitting unit 201; the first light-emitting unit 201 on the light string 100 for power line communication emits light according to the oscillation signal and the first setting parameters; the second light-emitting unit 202 emits light according to the oscillation signal and the second setting parameters. Due to the difference between the first setting parameters and the second setting parameters, the second light-emitting unit 202 and the first light-emitting unit 201 have different light emission, which meets the use requirements of the light string 100 for power line communication; the first setting parameters and/or the second setting parameters include parameters such as luminous intensity, flashing frequency, luminous color, and duration; of course, the light string 100 for power line communication includes but is not limited to the first light-emitting unit 201 and/or the second light-emitting unit 202.

As shown in FIG1 , a light string control method using power line communication;

The first light string 21 is electrically connected to the first sub-controller 211 to form a first light-emitting unit 201;

The first light emitting unit 201 is connected in parallel with the main controller 30 and connected to direct current;

An oscillation signal is outputted through the main controller 30, so that the direct current entering the first light-emitting unit 201 is oscillating direct current, and the oscillating direct current provides luminous electrical energy for the first light-emitting unit 201; the first sub-controller 211 extracts the oscillation signal in the oscillating direct current and controls the first light string according to the first setting parameters of the first sub-controller 211; thereby achieving the control requirement that the first light string 21 emits light according to the oscillation signal and the first setting parameters.

As shown in FIG. 1 , the second light string 22 is electrically connected to the second sub-controller 221 to form a second light-emitting unit 202 , and the second light-emitting unit 202 is connected in parallel with the main controller 30 and connected to direct current;

The oscillating direct current provides luminous electrical energy for the second light-emitting unit 202; the second sub-controller 221 extracts the oscillation signal in the oscillating direct current and controls the second light string according to the second setting parameters of the second sub-controller 221, so that the second light string 22 can emit light according to the control requirements of the oscillation signal and the second setting parameters.

As shown in FIG1 , the AC-DC voltage converter 40 is connected in parallel with the main controller 30 , and the AC-DC voltage converter 40 outputs DC power after receiving AC power; it is convenient to use; since conventional residential electricity is AC power, the use of the AC-DC voltage converter 40 can expand its use and facilitate promotion and application.

As shown in Figure 1, the AC-DC voltage converter 40 has a maximum voltage threshold and a minimum voltage threshold; the oscillating DC voltage value is between the maximum voltage threshold and the minimum voltage threshold; the oscillating DC voltage is prevented from being too high to damage the first light-emitting unit 201 and/or the second light-emitting unit 202; at the same time, the oscillating DC voltage is prevented from being too low, so that the first light-emitting unit 201 and/or the second light-emitting unit 202 cannot produce the corresponding light-emitting effect, affecting the use.

The above are preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. It should be recognized that non-inventive changes and modifications made by those skilled in the art after understanding the technical solution of the present invention should also fall within the protection scope of the present invention.

Claims (5)

1. A light string with power line communication, characterized in that: the light string with power line communication comprises a master controller, a first light string, a first sub-controller, an AC-DC voltage converter and a switch; The first light string includes a positive pin and a negative pin; The first sub-controller is electrically connected to the cathode pin, and the first light string and the first sub-controller constitute a first light-emitting unit; The first sub-controller is electrically connected to the main controller; The AC-DC voltage converter is used to convert alternating current into direct current; The AC-DC voltage converter includes a positive output terminal, a negative output terminal, a negative input terminal and an AC input terminal; The positive output terminal and the negative output terminal are electrically connected to the positive pin through the switch, and the output signal of the master controller controls the switch to switch between the positive output signal and the negative output signal of the AC-DC voltage to provide an oscillation signal for the positive pin; the control end of the first sub-controller receives the oscillation signal, and controls the first light string based on the oscillation signal; The negative input terminal is electrically connected to the first sub-controller; The AC input terminal is used to connect the light string of the power line communication to AC power. 2. The light string with power line communication according to claim 1, characterized in that: The power line communication light string also includes a second light string and a second sub-controller, and the second light string and the second sub-controller are electrically connected to form a second light-emitting unit; The second light emitting unit is connected in parallel with the first light emitting unit. 3. A method for controlling a light string with power line communication, based on the light string with power line communication as claimed in claim 1 or 2, characterized in that: The first light string is electrically connected to the first sub-controller to form a first light-emitting unit; The main controller switches the switch to output an oscillation signal, so that the direct current entering the first light-emitting unit is oscillating direct current, and the oscillating direct current provides luminous electrical energy for the first light-emitting unit; the first sub-controller extracts the oscillation signal in the oscillating direct current and controls the first light string according to the first setting parameters of the first sub-controller. 4. The light string control method of power line communication according to claim 3, characterized in that: The second light string is electrically connected to the second sub-controller to form a second light-emitting unit; The oscillating direct current provides luminous electrical energy for the second light-emitting unit; the second sub-controller extracts the oscillation signal in the oscillating direct current and controls the second light string according to the second setting parameter of the second sub-controller. 5. The light string control method of power line communication according to claim 3 is characterized in that: the AC-DC voltage converter is provided with a maximum voltage threshold and a minimum voltage threshold; and the voltage value of the oscillating direct current is between the maximum voltage threshold and the minimum voltage threshold.