Lamp string communication system and lamp

Abstract

The utility model provides a string light communication system and luminaire wherein the string light communication system is used for communication among string lights, each string light is provided with a controller, the string light communication system comprises: a power line, the power line is used for accessing a power supply; one end of the signal modulation circuit is connected with the power line, and the other end of the signal modulation circuit is connected with a controller of the lamp string; and one end of the signal receiving circuit is connected with the power line, and the other end of the signal receiving circuit is connected with a controller of the lamp string. According to the utility model, the lamp signal modulation circuit and the signal receiving circuit are arranged, the power line is used as a transmission medium, and the communication signal is loaded on the power line for transmission, so that the communication between the lamp strings is realized, no extra communication cable is needed, and the cost is saved. Meanwhile, the adopted circuit is simple in structure and low in cost, and the multiplexing of a communication power line enables the installation and wiring to be simple, the communication distance is not limited, and the anti-interference capability is strong.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lamp communication technical field, especially a kind of lamp string communication system and lamp. BACKGROUND

[0002] With the popularity of smart home, the lighting industry is undergoing unprecedented changes. More and more lamps and lanterns begin to have the ability to connect with the Internet, this trend not only changes the way people use lighting devices, but also brings more convenience and intelligent experience to home life. The communication technology on the lamp is mainly used to realize the information transmission and control between the lamp and the smart home system, smart phone or other smart devices. At present, the lamp string products on the market, in addition to the necessary power (VDD) cable and return (GND) cable, communication generally uses independent communication lines. The disadvantage of this is that it needs to increase additional communication cables, which increases unnecessary expenses on materials, labor and maintenance. SUMMARY

[0003] The main purpose of the utility model is to provide a kind of lamp string communication system and lamp, to solve the problem of cost increase caused by the need of additional communication cable of lamp string product.

[0004] In view of the above problems, the utility model provides a kind of lamp string communication system, for the communication between lamp string, every lamp string is provided with controller, including:

[0005] Power line, the power line is used to access power supply;

[0006] Signal modulation circuit, one end of the signal modulation circuit is connected with power line, the other end is connected with the controller of lamp string;The signal modulation circuit is used to modulate the control signal output by the controller into modulated signal and send to another lamp string via power line;

[0007] Signal receiving circuit, one end of the signal receiving circuit is connected with power line, the other end is connected with the controller of lamp string;The signal receiving circuit is used to receive modulated signal transmitted via power line and carry out demodulation processing, and output to the controller of lamp string.

[0008] Optionally, the signal modulation circuit includes resistance modulation circuit or capacitance modulation circuit.

[0009] Optionally, the lamp string communication system further includes:

[0010] Switching circuit, the controller of the lamp string is connected with the control end of switching circuit, and the output end of switching circuit is connected with the control end of signal modulation circuit;

[0011] The switching circuit is used to receive and control the signal modulation circuit to turn on / off according to the control signal of the controller, so as to modulate the current signal of the power line into a pulse current, so as to generate voltage fluctuations in the power line and send them to another string of lights.

[0012] Optionally, the switching circuit includes at least one switching transistor.

[0013] Optionally, the signal receiving circuit includes:

[0014] The demodulation circuit has its input terminal connected to the power line and its output terminal connected to the controller of the light string. The demodulation circuit is used to convert the voltage fluctuations transmitted by the power line into a level signal and output it to the controller of the light string so that the current light string responds to the signal of the previous light string.

[0015] Optionally, the demodulation circuit employs a filter amplifier circuit or a comparator circuit.

[0016] This utility model also proposes a lighting fixture, including a string of lights and a string of lights communication system as described above.

[0017] Optionally, the light string includes LED beads and a controller, wherein the LED bead output terminal of the controller is connected to the LED beads;

[0018] The controller is also used to receive the demodulated signal from the signal receiving circuit and output the corresponding control signal to the LED.

[0019] Optionally, the light string communication system further includes a main controller, and the main controller and the controller of each light string adopt a master-slave device polling mechanism for signal management;

[0020] The main controller is used to send query signals to the controllers of each light string in a predetermined order and receive feedback signals from the controllers of each light string in order to initiate communication between the main controller and the controllers of the light strings.

[0021] Optionally, the luminaire further includes:

[0022] The power supply circuit has its power input terminal connected to a power supply and its output terminal connected to a string light communication system. The power supply circuit is used to convert the power from the power supply line into the power supply for the string light communication system.

[0023] This invention includes a lamp signal modulation circuit and a signal receiving circuit, and utilizes power lines as the transmission medium to load communication signals onto the power lines for transmission, enabling communication between lamp strings without the need for additional communication cables, thus saving costs. Furthermore, the circuit structure is simple and low-cost, and the reuse of communication power lines simplifies installation and wiring, ensures unrestricted communication distance, and provides strong anti-interference capabilities. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description only represent some of the embodiments of the present application, and other drawings can also be obtained according to the structures shown in the drawings without creative labor.

[0025] Figure 1 The circuit composition framework diagram of the lamp string communication system of the present application.

[0026] The drawings are as follows: signal modulation circuit 01, signal receiving circuit 02, power line 03, lamp string 04, controller 41, lamp bead 42.

[0027] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only represent some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0029] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications also change accordingly.

[0030] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel schemes, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled personnel in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0031] The utility model provides a kind of lamp string communication system, for the communication between lamp string 04, each described lamp string 04 is provided with controller 41, including:

[0032] Power line 03, the power line 03 is used to access power supply;

[0033] Signal modulation circuit 01, one end of the signal modulation circuit 01 is connected with power line 03, the other end is connected with the controller 41 of lamp string 04;The signal modulation circuit 01 is used to modulate the control signal output by controller 41 into modulated signal and send to another lamp string 04 via power line 03;

[0034] Signal receiving circuit 02, one end of the signal receiving circuit 02 is connected with power line 03, the other end is connected with the controller 41 of lamp string 04;The signal receiving circuit 02 is used to receive modulated signal transmitted via power line 03 and carry out demodulation processing, and output to the controller 41 of lamp string 04.

[0035] More specifically, with the rapid development of smart home technology, the lighting industry is undergoing a profound transformation. Lighting is not only to provide lighting, but also to become an important part of the smart home system, and to realize remote control and intelligent management through Internet technology. LED lamp string 04 in lighting is often used for holiday atmosphere decoration, and LED lamp string 04 needs to realize dynamic effects such as water flow and flashing patterns, and needs to deliver control signals to LED lamp string 04 and each LED lamp bead 42 in LED lamp string 04. When as many as ten or dozens of groups of LED lamp string 04 are controlled, especially when each LED lamp bead 42 in each group of LED lamp string 04 is point-controlled, how to cascade LED lamp string 04 and how to transmit signals are technical problems to be solved.

[0036] The current market light string 04 products, light string 04 between the necessary power supply (VDD) cable and loop (GND) cable, communication generally uses independent communication line, the disadvantage of this is to increase the additional communication cable, material, labor, maintenance and increase unnecessary expenses.

[0037] For the above problems, the present application proposes a kind of light string communication system, for the communication between light string 04.The implementation effect of the present application is that the communication between light string 04 product is not additionally increased communication cable, wherein Figure 1 The light string communication system of the present application includes power line 03, signal modulation circuit 01 and signal receiving circuit 02.Meanwhile, each described light string 04 is provided with controller 41, and the controller 41 is communicated with other light string 04 by power line 03, signal modulation circuit 01 and signal receiving circuit 02, and this communication mode allows light string 04 to share information, so as to work cooperatively, realize more complex lighting effect and more intelligent control.

[0038] Specifically, each light string 04 is equipped with controller 41, which enables them to process and control various lighting parameters such as brightness, color, etc.However, if each light string 04 works independently, the lighting effect between them may appear uncoordinated or inconsistent.In order to achieve more unified lighting effect, it is necessary to communicate between light string 04, share control information.The one end of signal modulation circuit 01 of the present application is connected with power line 03, and the other end is connected with the controller 41 of light string 04;The one end of signal receiving circuit 02 is connected with power line 03, and the other end is connected with the controller 41 of light string 04.

[0039] It can be understood that signal modulation circuit 01 is responsible for modulating the control signal output by controller 41 into a modulated signal and sending it to another light string 04 through power line 03.Signal receiving circuit 02 is responsible for receiving these modulated signals and demodulating them to restore the original control signals.In this way, one light string 04 can send its control information to another light string 04, thus realizing cooperative control.

[0040] The signal modulation circuit 01 of the present application uses Backscatter (backscatter) modulation technology.Backscatter refers to the phenomenon that sound waves, electric waves, light, etc.are reflected back after encountering an object.In the field of communication, Backscatter modulation technology realizes information transmission by capturing and processing these reflected signals.When electromagnetic waves (mainly represented by current on power line) encounter a medium boundary with different impedance, reflection or scattering occurs.By modulating the current with a modulator, its impedance characteristics can be changed, thus producing fluctuating current waves.These fluctuations carry information that can be captured and analyzed by a receiver.

[0041] Unlike wireless technology, the present application uses backscatter modulation technology to transmit information through changes in current in a wired environment. When the current encounters a modulator, part of the energy will be reflected or scattered back, forming a current fluctuation. This reflection or scattering phenomenon does not occur because there is a "reflector" in the traditional sense, but because of impedance mismatch of electromagnetic waves. Therefore, the present application forms a current fluctuation through the signal modulation circuit 01, so that the voltage difference fluctuation of the power line 03 is generated. The signal receiving circuit 02 captures the voltage difference fluctuation of the power line 03 and converts it into a level signal, realizing communication between the lamp string 04.

[0042] The utility model is provided with lamp signal modulation circuit 01 and signal receiving circuit 02, and uses power line as transmission medium, loads communication signal on power line for transmission, realizes the communication between lamp string 04, does not need extra communication cable, saves the cost. At the same time, the circuit structure adopted is simple, the cost is low, the multiplexing of communication power line 03 makes the installation wiring simple, the communication distance is not limited and the anti-interference ability is strong.

[0043] In an embodiment, the signal modulation circuit 01 includes a resistance modulation circuit or a capacitance modulation circuit. Specifically, the resistance modulation circuit is a modulation method that changes the carrier amplitude by changing the resistance. In the resistance modulation circuit, the modulation signal adjusts the resistance value in the carrier circuit through a variable resistance, thereby changing the amplitude of the carrier. When the modulation signal is a sine wave, it will change the amplitude of the carrier, making it exhibit the same waveform as the modulation signal. When the modulation signal is a digital signal, it will change the amplitude of the carrier, making it exhibit the characteristics of the digital signal. In this way, by changing the resistance, the modulation of the carrier can be realized, thereby transmitting the modulation signal.

[0044] The capacitance modulation circuit is a way of changing the circuit parameters by changing the capacitance to achieve signal modulation. Although the specific implementation of the capacitance modulation circuit may vary depending on the application, the basic principle is similar. In the capacitance modulation circuit, a variable capacitor or a combination of fixed capacitors and switches is usually used to change the capacitance value. By controlling the on-off of the switch, some capacitors can be selectively connected or disconnected, thereby changing the capacitance value of the entire circuit. This change in capacitance value will affect the resonant frequency or other related parameters of the circuit, thereby achieving modulation of the signal.

[0045] The resistance modulation circuit has the advantages of simple implementation and low cost, and the capacitance modulation circuit has the advantages of good frequency response and high stability, especially in high frequency applications. The application adopts a resistance modulation circuit or a capacitance modulation circuit to realize information transmission through current changes, has a simple circuit composition, and can realize multiplexing of the communication power line 03 and reduce the cost of the lamp string 04.

[0046] In an embodiment, the lamp string communication system further comprises:

[0047] A switch circuit, the controller 41 of the lamp string 04 is connected to the control end of the switch circuit, and the output end of the switch circuit is connected to the control end of the signal modulation circuit 01; the switch circuit is used for receiving and controlling the on / off of the signal modulation circuit 01 according to the control signal of the controller 41, so as to modulate the current signal of the power line 03 into pulse current, so as to make the power line 03 generate voltage fluctuation and send to another lamp string 04.

[0048] The control logic of the controller 41 determines when to output the control signal, and the waveform and frequency of the control signal. These parameters will directly affect the working state of the signal modulation circuit 01, and then affect the current change and voltage fluctuation on the power line 03. The controller 41 outputs the control signal to the switch circuit through the output end, and the switch circuit quickly opens and closes the signal modulation circuit 01 after receiving the control signal, so as to realize pulse current change on the power line 03, and then generate voltage difference fluctuation on the power line 03, and the generated voltage fluctuation will be sent to another lamp string 04, thereby realizing signal propagation on the power line 03 line.

[0049] The whole communication process does not need additional communication lines, but uses the existing power line 03 as a communication medium. This non-contact communication method simplifies the system structure and reduces the cost. At the same time, since pulse current and voltage fluctuation are used for communication, the system can realize high-speed and reliable signal transmission. Among them, the signal modulation circuit 01 generally adopts a resistance modulation circuit or a capacitance modulation circuit. The controller 41 controls the switch circuit through the output end, quickly opens and closes the signal modulation circuit 01, so as to realize pulse current change on the power line 03, and then generate 20~100mv voltage difference fluctuation on the power line 03, thereby realizing signal propagation on the power line 03 line.

[0050] In an embodiment, the switching circuit includes at least one switch tube. Specifically, the controller 41 is a master control chip that controls the on and off of the switch tube through an IO port. When the switch tube is on, the signal modulation circuit 01 is turned on, and when the switch tube is off, the signal modulation circuit 01 is turned off. Quickly turning on and off the signal modulation circuit 01 can achieve a pulsed current change on the power line 03, thereby generating a voltage difference fluctuation on the power line 03, and the generated voltage fluctuation will be transmitted to another lamp string 04, thereby achieving signal propagation on the line of the power line 03.

[0051] In an embodiment, the signal receiving circuit 02 includes:

[0052] The demodulation circuit has an input end connected to the power line 03 and an output end connected to the controller 41 of the lamp string 04. The demodulation circuit is used to convert the voltage fluctuation transmitted by the power line 03 into a level signal and output it to the controller 41 of the lamp string 04, so that the current lamp string 04 responds to the signal of the previous lamp string 04.

[0053] In the lamp string communication system, signals are transmitted between lamp strings 04 through the power line 03. Each lamp string 04 includes a signal modulation circuit 01 and a demodulation circuit for sending and receiving signals. When the previous lamp string 04 sends signals, these signals propagate to the demodulation circuit of the current lamp string 04 through the power line 03, and the demodulation circuit receives and processes these signals. The demodulation circuit converts the received voltage fluctuation into a level signal, which can be a high or low level, representing different control instructions or data, and the converted level signal is sent to the controller 41 of the current lamp string 04.

[0054] The controller 41 performs corresponding control actions according to the received signal, such as turning on or off the lamp beads 42, adjusting brightness or color, etc. Through the control of the controller 41, the current lamp string 04 responds to the signal of the previous lamp string 04 and may perform corresponding operations according to the instructions, achieving a more unified lighting effect. Among them, the signal modulation circuit 01 generally adopts a resistance modulation circuit or a capacitance modulation circuit. The controller 41 controls the switching circuit through the output end to quickly turn on and off the signal modulation circuit 01, thereby achieving a pulsed current change on the power line 03, and further generating a voltage difference fluctuation of 20~100mv on the power line 03, thereby achieving signal propagation on the line of the power line 03.

[0055] In an embodiment, the demodulation circuit uses a filter amplification circuit or a comparator circuit.

[0056] Specifically, in an electronic communication system, the demodulation circuit is responsible for recovering the modulated signal into the original information. In combination with the above embodiment, in a light string communication system, the demodulation circuit is used to convert the voltage fluctuations on the power line 03 (which are caused by the pulsed current generated by the signal modulation circuit 01) into a level signal, and the demodulation circuit can be implemented by using a filter-amplifier circuit or a comparator circuit.

[0057] The filter-amplifier circuit combines the functions of a filter and an amplifier. The filter is used to remove unwanted frequency components from the received signal, while the amplifier is used to enhance the amplitude of the desired signal. In the light string communication system, the filter-amplifier circuit can be designed to be sensitive to voltage fluctuations within a specific frequency range, thereby filtering out noise and other interference signals while amplifying useful signals.

[0058] The comparator circuit is a circuit for comparing two input voltages and outputting a high or low level signal. In the light string communication system, the comparator circuit can compare the received voltage fluctuations with a preset threshold value. When the voltage fluctuations exceed the threshold value, the comparator outputs a high level signal; when the voltage fluctuations are below the threshold value, the comparator outputs a low level signal. In this way, the comparator circuit can convert the analog voltage fluctuations into digital signals, facilitating subsequent digital signal processing.

[0059] When selecting a demodulation circuit, it is necessary to balance according to the specific needs of the light string communication system. If high-fidelity recovery of the original signal waveform is required, the filter-amplifier circuit may be a better choice, and if fast response and digital processing are required, the comparator circuit may be more suitable.

[0060] The utility model also proposes a lamp, including light string 04 and like above-mentioned light string communication system. Among them, the light string communication system includes power line 03, signal modulation circuit 01 and signal receiving circuit 02. The light string communication system of the application utilizes power line as transmission medium, loads communication signal on power line and transmits, realizes the communication between light string 04, does not need extra communication cable, saves the cost. Meanwhile the circuit structure that adopts is simple, cost is low, the reuse of communication power line 03 makes installation wiring simple, communication distance is not limited and the anti-interference ability is strong.

[0061] In an embodiment, the light string 04 includes a lamp bead 42 and a controller 41, the lamp bead 42 output end of the controller 41 is connected with the lamp bead 42;The controller 41 is also used for receiving the signal after the signal receiving circuit 02 demodulation and output corresponding control signal to the lamp bead 42.

[0062] The lamp beads 42 are the basic light-emitting units of the light string 04, which emit light according to the received current or voltage signals. The controller 41 also has the ability to receive the demodulated signals from the signal receiving circuit 02, which may come from other light strings 04, the central controller 41 or other signal sources. The controller 41 processes these signals and parses the control instructions or data. According to the content of the received signals, the controller 41 outputs corresponding control signals to the lamp beads 42. These control signals may include instructions such as turning on, turning off, adjusting brightness or color, thereby realizing the control and display effect of the light string 04 system.

[0063] The light string 04 system realizes the reception, processing and output of control signals by integrating the lamp beads 42, the controller 41, the signal modulation circuit 01 and the signal receiving circuit 02. This system structure enables communication and control between the light strings 04, making it possible to create complex light effects and dynamic displays.

[0064] In an embodiment, the light string communication system further includes a master controller 41, which uses a master-slave polling mechanism to manage signals between the master controller 41 and the controllers 41 of each light string 04. Master-slave polling is a commonly used communication protocol that allows a master device (here, the master controller 41) to send query signals to multiple slave devices (here, the controllers 41 of the light strings 04) in a predetermined order and receive feedback signals from the slave devices. This mechanism ensures that each slave device has the opportunity to communicate with the master device, thereby realizing the orderly and efficient operation of the system.

[0065] The master controller 41 is used to send query signals to the controllers 41 of each light string 04 in a predetermined order and receive feedback signals from the controllers 41 of the light strings 04, thereby starting communication between the master controller 41 and the controllers 41 of the light strings 04. At system startup, the master controller 41 first performs initialization operations, including setting the polling order and configuring communication parameters. Then, the master controller 41 sends query signals to the controllers 41 of each light string 04 in a predetermined order.

[0066] Upon receiving the query signal, the controller 41 of each light string 04 generates a feedback signal based on its own state or data and sends it back to the master controller 41. The master controller 41 receives and processes the feedback signals from the controllers 41 of the light strings 04, and then performs corresponding control actions or data exchanges as needed. The above process is repeated continuously, forming a continuous polling cycle, thereby ensuring the continuous operation and real-time communication of the system. The use of the master-slave polling mechanism can avoid the situation where multiple signals are sent simultaneously, causing signal interference, ensuring the safety and reliability of the signals.

[0067] In an embodiment, the light fixture further includes:

[0068] The power supply circuit is connected with the power supply source at the power input end, and connected with the lamp string communication system at the output end; the power supply circuit is used for converting the power of the power line 03 into the power supply of the lamp string communication system. The function of the power supply circuit is to convert the voltage and current of the external power supply source into the voltage and current required by the lamp string communication system. This usually involves processing steps such as voltage reduction, rectification, filtering and voltage stabilization. The voltage reduction step is used to convert high voltage into low voltage, the rectification step is used to convert alternating current into direct current, the filtering step is used to remove high-frequency noise and ripple in the power supply, and the voltage stabilization step is used to ensure the stability and reliability of the output voltage.

[0069] The above embodiments are only preferred embodiments of the present application, and do not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation obtained by using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A system for communication between light strings, each of said light strings being provided with a controller, characterized in that, The application relates to a lamp string communication system. The lamp string communication system comprises a power line for connecting to a power supply, a signal modulation circuit connected to the power line at one end and connected to a controller of the lamp string at the other end, the signal modulation circuit being used for modulating a control signal output by the controller into a modulation signal and transmitting the modulation signal to another lamp string via the power line, and a signal receiving circuit connected to the power line at one end and connected to the controller of the lamp string at the other end, the signal receiving circuit being used for receiving the modulation signal transmitted via the power line and performing demodulation processing and outputting to the controller of the lamp string. The signal modulation circuit comprises a resistance modulation circuit or a capacitance modulation circuit. The lamp string communication system further comprises a switch circuit, the controller of the lamp string being connected to a control end of the switch circuit, and an output end of the switch circuit being connected to a control end of the signal modulation circuit, the switch circuit being used for receiving and controlling the signal modulation circuit to turn on or turn off according to the control signal of the controller, so as to modulate the current signal of the power line into a pulse current, so that the power line generates voltage fluctuation and transmits to another lamp string.

2. The lamp string communication system of claim 1, wherein, The switch circuit comprises at least one switch tube.

3. The lamp string communication system of claim 2, wherein, The signal receiving circuit comprises a demodulation circuit, an input end of the demodulation circuit being connected to the power line, and an output end of the demodulation circuit being connected to the controller of the lamp string, the demodulation circuit being used for converting the voltage fluctuation transmitted by the power line into a level signal and outputting to the controller of the lamp string, so that the current lamp string responds to the signal of the previous lamp string. The demodulation circuit adopts a filter amplification circuit or a comparator circuit. The lamp string communication system comprises a lamp string and the lamp string communication system according to any one of claims 1-6.

4. The lamp string communication system of claim 3, wherein, The lamp string comprises lamp beads and a controller, a lamp bead output end of the controller being connected to the lamp beads.

5. The lamp string communication system of claim 1, wherein, The controller is further used for receiving the demodulated signal of the signal receiving circuit and outputting a corresponding control signal to the lamp beads. The lamp string communication system further comprises a master controller, the master controller and the controller of each lamp string adopting a master-slave device polling mechanism to perform signal management.

6. The lamp string communication system of claim 5, wherein, The master controller is used for sequentially transmitting a query signal to the controller of each lamp string and receiving a feedback signal of the controller of the lamp string according to a predetermined sequence, so as to start the communication between the master controller and the controller of the lamp string.

7. A luminaire characterized by, The lamp further comprises a power supply circuit, a power input end of the power supply circuit being connected to a power supply, and an output end of the power supply circuit being connected to the lamp string communication system, the power supply circuit being used for converting the power of the power line into a power supply of the lamp string communication system.

8. The luminaire of claim 7, wherein, ​ ​ 9. The luminaire of claim 7, wherein, ​ ​ 10. The luminaire of claim 7, wherein, ​ ​

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