Master-slave control system of Christmas lamp

Abstract

The utility model discloses a master-slave control system of christmas lamp, including host computer, the host computer includes main power supply, with main control treater of main power supply and with main control treater of main LED power supply circuit is connected, main LED power supply circuit is connected with main light string, main control treater is used for controlling the stroboscopic of main light string, opening or closing or the color of LDE lamp, main control treater is connected with infrared communication data transmitting device, main control treater is used for sending control signal through infrared communication data transmitting device to the infrared communication data receiving device of slave machine, and the slave machine includes from power supply, with from control treater of from power supply and with from control treater of from LED power supply circuit is connected, from LED power supply circuit is connected with from light string, from control treater is connected with infrared communication data receiving device, and after receiving control signal, from control treater controls the stroboscopic of from light string, opening or closing or the color of LDE lamp.

Description

Technical Field

[0001] This utility model relates to the field of lighting control systems, and in particular to a master-slave control system for Christmas lights. Background Technology

[0002] Existing Christmas light strings are generally composed of multiple light strings to create a predetermined lighting effect. The main reason for this is that when there are a large number of LED lights in the light string, a single power supply system cannot guarantee a stable output of the LED lights, which can easily lead to voltage instability or flickering.

[0003] However, the key to the design is how to achieve mutual control of multiple light strings using the same control system. Utility Model Content

[0004] The main purpose of this invention is to propose a master-slave control system for Christmas lights, which aims to achieve unified control of multiple light strings by adopting a master-slave system structure, thereby improving the color effect of Christmas lights.

[0005] To achieve the above objectives, this utility model proposes a master-slave control system for Christmas lights, comprising:

[0006] The host unit includes a main power supply, a main control processor connected to the main power supply, and a main LED power supply circuit connected to the main control processor. The main LED power supply circuit is connected to the main LED string.

[0007] The main control processor is used to control the flickering of the main light string, its on or off state, or the color of the LED lights.

[0008] The main control processor is connected to an infrared communication data transmitter.

[0009] The main control processor is used to send control signals to the infrared communication data receiving device of the slave device through the infrared communication data transmitting device;

[0010] The slave device is provided with at least one.

[0011] The slave device includes a slave power supply, a slave control processor connected to the slave power supply, and a slave LED power supply circuit connected to the slave control processor.

[0012] The LED power supply circuit is connected to a string of LEDs;

[0013] The control processor is connected to the infrared communication data receiving device, and after receiving the control signal, it controls the flashing of the light string, whether it is turned on or off, or the color of the LED lights.

[0014] In a specific embodiment, the main control processor is equipped with an infrared communication data transmitter to ensure consistency of the light string control signals between the master and slave devices.

[0015] The advantage of this application is that the master and slave devices use separate power supplies, power supply circuits, and separate control processors. This results in better operating frequency and operational stability of the control processor, effectively reducing problems such as unstable power supply or cumbersome control systems.

[0016] For example, the control processor can be internally configured with a delay device to postpone the received control signals, thereby enabling an alternating design for the blinking of the master LED and slave LEDs.

[0017] Of course, a consistent control signal can also be used to achieve a unified flashing effect for multiple Christmas trees or a single Christmas tree, thereby enhancing the aesthetic appeal of the design. Attached Figure Description

[0018] Figure 1 This is the main circuit diagram;

[0019] Figure 2 This is the circuit diagram for the slave device. Detailed Implementation

[0020] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0021] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0022] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0023] like Figures 1 to 2 As shown, a master-slave control system for Christmas lights includes:

[0024] The host unit includes a main power supply, a main control processor connected to the main power supply, and a main LED power supply circuit connected to the main control processor. The main LED power supply circuit is connected to the main LED string.

[0025] The main control processor is used to control the flickering of the main light string, its on or off state, or the color of the LED lights.

[0026] The main control processor is connected to an infrared communication data transmitter.

[0027] The main control processor is used to send control signals to the infrared communication data receiving device of the slave device through the infrared communication data transmitting device;

[0028] The slave device is provided with at least one.

[0029] The slave device includes a slave power supply, a slave control processor connected to the slave power supply, and a slave LED power supply circuit connected to the slave control processor.

[0030] The LED power supply circuit is connected to a string of LEDs;

[0031] The control processor is connected to the infrared communication data receiving device, and after receiving the control signal, it controls the flashing of the light string, whether it is turned on or off, or the color of the LED lights.

[0032] In a specific embodiment, the main control processor is equipped with an infrared communication data transmitter to ensure consistency of the light string control signals between the master and slave devices.

[0033] The advantage of this application is that the master and slave devices use separate power supplies, power supply circuits, and separate control processors. This results in better operating frequency and operational stability of the control processor, effectively reducing problems such as unstable power supply or cumbersome control systems.

[0034] For example, the control processor can be internally configured with a delay device to postpone the received control signals, thereby enabling an alternating design for the blinking of the master LED and slave LEDs.

[0035] Of course, a consistent control signal can also be used to achieve a unified flashing effect for multiple Christmas trees or a single Christmas tree, thereby enhancing the aesthetic appeal of the design.

[0036] Specifically, the slave control processor is equipped with a signal delay device, which is used to make the main light string and the slave light string flash alternately. Of course, the specific model of this delay device can be turned off or on, or its time can be adjusted according to actual needs.

[0037] Specifically, the infrared communication data receiving device includes a 5V power supply, an optocoupler U1AA connected to the 5V power supply, and a transistor Q1 connected to the optocoupler U1AA.

[0038] A resistor R17 is located between the base of transistor Q1 and the main control processor. Resistor R17 is the base resistor between the base of transistor Q1 and the control signal from the previous stage. Its function is to limit the current driving the base of Q1, protect the control signal source, and affect the switching speed of Q1 (acting in conjunction with the junction capacitance between the base and emitter of Q1).

[0039] Specifically, a resistor R8 is provided between the optocoupler U1AA connected to the 5V power supply. Resistor R8 is a current-limiting resistor connected between the 5V power supply and the infrared diode of U1AA. It determines the maximum current flowing through the infrared emitting diode.

[0040] Specifically, the emitter of the transistor Q1 is connected to the VCC terminal of the main control processor, where the VCC terminal is an analog signal source.

[0041] Specifically, the main control processor is an STM103 ssop20. The STMSTM103 integrates a wealth of peripherals and functional modules, including multiple timers, communication interfaces (such as UART, SPI, I2C), analog input / output (ADC, DAC), PWM output, various interrupts and event managers, etc., which can meet various application requirements.

[0042] For example, same-frequency control or different-frequency control can be used to improve the lighting effect.

[0043] Specifically, the optocoupler U1AA is model PC817. The infrared signal emitting circuit based on the optocoupler (PC817) is driven by a transistor (Q1) as a switch. It uses a high-level input signal to trigger infrared emission and protects the diode through the current-limiting resistor R8. It mainly uses the optocoupler to achieve electrical isolation between the input side and the load side.

[0044] Specifically, the infrared communication data receiving device includes an optical coupler U1B.

[0045] One end of the optocoupler U1B is connected to a 5V power supply Vcc2;

[0046] The other end is connected to the eighth pin of the control processor.

[0047] Specifically, the control processor is model NCP1203, which receives signals and controls the LED string, effectively reducing the frequency of computation.

[0048] Specifically, the signal of the optical coupler U1B is PC817.

[0049] Specifically, the optocoupler U1B has a resistor R2 and a capacitor C20 connected in parallel at the end of the eighth pin.

[0050] The resistor R2 and capacitor C20 are connected in series with a ground connection.

[0051] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A master-slave control system for Christmas lights, characterized in that, include: The host unit includes a main power supply, a main control processor connected to the main power supply, and a main LED power supply circuit connected to the main control processor. The main LED power supply circuit is connected to the main LED string. The main control processor is used to control the flickering of the main light string, its on or off state, or the color of the LED lights. The main control processor is connected to an infrared communication data transmitter. The main control processor is used to send control signals to the infrared communication data receiving device of the slave device through the infrared communication data transmitting device; The slave device is provided with at least one. The slave device includes a slave power supply, a slave control processor connected to the slave power supply, and a slave LED power supply circuit connected to the slave control processor. The LED power supply circuit is connected to a string of LEDs; The control processor is connected to the infrared communication data receiving device, and after receiving the control signal, it controls the flashing of the light string, whether it is turned on or off, or the color of the LED lights.

2. The master-slave control system for Christmas lights as described in claim 1, characterized in that: The slave control processor is equipped with a signal delay device, which is used to make the master light string and slave light string flash alternately.

3. The master-slave control system for Christmas lights as described in claim 1, characterized in that: The infrared communication data receiving device includes a 5V power supply, an optocoupler U1AA connected to the 5V power supply, and a transistor Q1 connected to the optocoupler U1AA. A resistor R17 is provided between the base of transistor Q1 and the main control processor; A resistor R8 is provided between the optocoupler U1AA connected to the 5V power supply.

4. The master-slave control system for Christmas lights as described in claim 3, characterized in that: The emitter of transistor Q1 is connected to the VCC terminal of the main control processor.

5. The master-slave control system for Christmas lights as described in claim 1, characterized in that: The main control processor is an STM103 ssop20.

6. The master-slave control system for Christmas lights as described in claim 3, characterized in that: The optocoupler U1AA is model PC817.

7. The master-slave control system for Christmas lights as described in claim 1, characterized in that: The infrared communication data receiving device includes an optical coupler U1B. One end of the optocoupler U1B is connected to a 5V power supply Vcc2; The other end is connected to the eighth pin of the control processor.

8. The master-slave control system for Christmas lights as described in claim 1, characterized in that: The slave control processor is model NCP1203.

9. The master-slave control system for Christmas lights as described in claim 7, characterized in that: The signal of the optocoupler U1B is PC817.

10. The master-slave control system for Christmas lights as described in claim 7, characterized in that: The optocoupler U1B has a resistor R2 and a capacitor C20 connected in parallel at the end of the eighth pin. The resistor R2 and capacitor C20 are connected in series with a ground connection.

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