Lighting splitters, lighting systems and signal splitting methods

Abstract

This invention describes a lighting splitter, a lighting system, and a signal splitting method. The splitter includes: a decoding module configured to decode an input raw single-wire data signal to output decoded data; a branch lamp count confirmation module configured to confirm the branch lamp count configuration information for each branch; and a branch data output module configured to distribute the decoded data to each branch according to the branch lamp count configuration information. According to the splitter, lighting system, and signal splitting method of this invention, independent control of the lighting fixtures can be achieved, improving the system's flexibility and reliability.

Description

Technical Field

[0001] This invention relates to the field of lighting control technology, specifically to a lighting splitter, a lighting system, and a signal splitting method. Background Technology

[0002] With the development of smart homes and urban landscape lighting, RGB lighting fixtures are becoming increasingly popular in the market due to their ability to provide a wide variety of lighting effects. These fixtures are typically composed of multiple addressable LED chips, which can achieve complex light and shadow effects through precise control, and are commonly used in holiday decorations, stage lighting, commercial advertising, and other fields.

[0003] In existing technologies, RGB lighting fixtures typically employ single-wire protocols for control, such as the single-wire return-to-zero (RZ) protocol. This protocol controls all lighting fixtures through a single signal line, with the controller transmitting control commands by changing the voltage levels on the signal line. The addressing IC within each lighting fixture or group of fixtures receives these commands and controls the brightness and color of the LED beads accordingly.

[0004] The aforementioned control method is simple and low-cost, but because all lamps share the same signal line, it can only achieve synchronous control of all lamps, meaning it can only output the same signal to each branch, and cannot achieve independent and precise control of individual lamps or lamp groups. This means it is impossible to create unique lighting effects for each lamp or lamp group, limiting the flexibility and creativity of lighting design. Furthermore, as the number of lamps increases, sharing the signal line may lead to signal interference and attenuation, affecting the stability and reliability of the control signal.

[0005] Therefore, existing technologies require a signal splitter that can independently control multiple outputs to provide a more flexible and stable lighting control solution. Summary of the Invention

[0006] The present invention aims to provide a lighting circuit breaker, lighting system and signal splitting method that can realize independent control of lighting fixtures and improve the flexibility and reliability of the system.

[0007] To this end, the first aspect of the present invention provides a lighting splitter, comprising: a decoding module configured to decode an input raw single-line data signal to output decoded data; a branch lamp count confirmation module configured to confirm the branch lamp count configuration information of each branch; and a branch data output module configured to distribute the decoded data to each branch according to the branch lamp count configuration information of each branch.

[0008] In this invention, by decoding the original single-line data signal, the branch data output module can distribute the decoded data to each branch according to the branch lamp configuration information. This enables independent control of the lamps or lamp groups in each branch, improving the system's flexibility and reliability.

[0009] In the lighting splitter according to the first aspect of the present invention, optionally, the original single-line data signal includes a plurality of 0 codes and 1 codes, the 0 codes having a high level with a first predetermined pulse width, the 1 codes having a high level with a second predetermined pulse width, the second predetermined pulse width being greater than the first predetermined pulse width; the decoding module includes a clock signal generation unit, the clock signal generation unit being configured to generate a first pulse signal having a third predetermined pulse width based on the first initial signal having a high level duration in the corresponding original single-line data signal that is greater than the high level duration of the 0 codes, so as to generate a clock signal.

[0010] In the lighting splitter according to the first aspect of the present invention, optionally, the third predetermined pulse width is not greater than the difference between the second predetermined pulse width and the first predetermined pulse width.

[0011] In the lighting splitter according to the first aspect of the present invention, optionally, the decoding module includes a first judgment unit, the first judgment unit being configured to sample the original single-line data signal at the position where the clock signal has the first pulse signal, and when the decoding bit of the original single-line data signal corresponding to the first pulse signal is low, determine that the decoding bit is the 0 code; and when the decoding bit of the original single-line data signal corresponding to the first pulse signal is high, determine that the decoding bit is the 1 code.

[0012] In the lighting splitter according to the first aspect of the present invention, optionally, the decoding module includes an NSS signal generation unit, the NSS signal generation unit being configured to generate a second pulse signal having a fourth predetermined pulse width based on the first high-level rising edge of the second initial signal corresponding to the original single-line data signal, so as to generate an NSS signal, wherein the endpoint of the second pulse signal is the end of a data frame in the original single-line data signal.

[0013] In the lighting splitter according to the first aspect of the present invention, optionally, the decoding module includes a second judgment unit, the second judgment unit being configured such that when it is determined that the low level time of the original single-line data signal exceeds a preset time, the position of the original single-line data signal is the end of a data frame.

[0014] In the lighting splitter according to the first aspect of the present invention, optionally, the original single-line data signal carries configuration information of the number of lamps in each branch.

[0015] In the lighting splitter according to the first aspect of the present invention, optionally, the configuration information of the number of lights in each branch is sent to the branch light number confirmation module via a user terminal.

[0016] Optionally, the lighting splitter according to the first aspect of the present invention further includes a configuration module, which is used to configure the branch lamp number configuration information of each branch and send the branch lamp number configuration information of each branch to the branch lamp number confirmation module.

[0017] In the lighting splitter according to the first aspect of the present invention, optionally, the branch lamp count confirmation module includes multiple cascaded splitting devices, the original single-line data signal has configuration information for each lamp, and the configuration information includes the branch lamp count configuration information, and the splitting device is configured to identify the branch lamp count configuration information.

[0018] In the lighting splitter according to the first aspect of the present invention, optionally, the branch data output module distributes the decoded data to each branch via an SPI or PWM analog single-wire protocol.

[0019] A second aspect of the present invention provides a signal splitting method, characterized in that it includes: decoding an input raw single-line data signal to output decoded data; confirming the branch lamp number configuration information of each branch; and distributing the decoded data to each branch according to the branch lamp number configuration information of each branch.

[0020] A third aspect of the present invention provides a lighting system, characterized in that it includes a controller, multiple lamps and multiple lighting control chips arranged in multiple branches, and a lighting splitter as described in any one of claims 1-10, wherein the splitter has multiple output terminals, the multiple output terminals are respectively connected to the multiple branches, each lamp is equipped with at least one lighting control chip, the controller is configured to output the original single-line data signal to the lighting splitter, and the splitter is configured to decode the original single-line data signal and independently distribute it to the lighting control chips connected to the lamps in the multiple branches, thereby allowing the lighting control chips to control the light emission state of the lamps.

[0021] The lighting switch, lighting system, and signal splitting method according to the present invention enable independent control of the lighting fixtures, thereby improving the flexibility and reliability of the system. Attached Figure Description

[0022] The invention will now be explained in further detail by way of example only with reference to the accompanying drawings.

[0023] Figure 1 This is a functional block diagram illustrating the lighting system involved in the example of the present invention.

[0024] Figure 2 This is a functional block diagram illustrating Embodiment 1 of the lighting switch involved in the example of the present invention.

[0025] Figure 3 This is a functional block diagram illustrating Embodiment 2 of the lighting switch involved in the example of the present invention.

[0026] Figure 4 This is a schematic diagram illustrating the 0 code, 1 code, and Reset code involved in the example of the present invention.

[0027] Figure 5 This is a schematic diagram illustrating the original single-wire data signal and clock signal involved in the example of the present invention.

[0028] Figure 6 This is a schematic diagram illustrating the original single-line data signal and NSS signal involved in the example of the present invention.

[0029] Figure 7 This is a schematic diagram illustrating the original single-wire data signal, clock signal, and NSS signal involved in the example of the present invention.

[0030] Figure 8 This is a schematic diagram illustrating the branching device for identifying branch light configuration information according to an example of the present invention.

[0031] Figure 9 This is a flowchart illustrating a signal splitting method according to an example of the present invention. Detailed Implementation

[0032] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, the same reference numerals are used for the same parts, and repeated descriptions are omitted. Furthermore, the drawings are merely schematic diagrams, and the proportions of the parts or the shapes of the parts may differ from the actual figures.

[0033] It should be noted that the terms "comprising" and "having" and any variations thereof in this invention, such as a process, method, system, product, or device that includes or has a series of steps or units, are not necessarily limited to those steps or units that are explicitly listed, but may include or have other steps or units that are not explicitly listed or that are inherent to such processes, methods, products, or devices.

[0034] The present invention aims to provide a lighting circuit breaker 1, a lighting system, and a signal splitting method that enable independent control of lighting fixtures and improve the flexibility and reliability of the system.

[0035] Specifically, the present invention provides a lighting system. This lighting system can also be referred to as a lighting control system or a RGB lighting control system.

[0036] Reference Figure 1 The lighting system may include a controller 2, multiple lamps (e.g., lamp 1, lamp 2, ..., lamp N) set in multiple branches (e.g., branch 1, branch 2, ..., branch N), multiple lighting control chips (e.g., lamp control chip 1, lamp control chip 2, ..., lamp control chip N), and a splitter 2.

[0037] In some embodiments, each branch can be equipped with multiple lights, and each light can be controlled by at least one connected lighting control chip. For example, branch 1 may include lights 1a, ..., 1i, and lighting control chips 1a', ..., 1i', etc., where light 1a can be controlled by lighting control chip 1a', and light 1i can be controlled by lighting control chip 1i'; branch 2 may include lights 2a, ..., 2i, and lighting control chips 2a', ..., 2i', etc., where light 2a can be controlled by lighting control chip 2a', and light 2i can be controlled by lighting control chip 2i'; branch N may include lights Na, ..., Ni, and lighting control chips Na', ..., Ni', etc., where light Na can be controlled by lighting control chip Na', and light Ni can be controlled by lighting control chip N1i'.

[0038] In some embodiments, the luminaire may be, for example, a RGB luminaire.

[0039] In some embodiments, the splitter 1 can be disposed between the controller 2 and the lamp. The splitter 1 can have one input terminal and multiple output terminals, which can be connected to multiple branches respectively, and each branch can be equipped with at least one lamp. Each lamp can be configured with at least one lamp control chip.

[0040] Of course, it is understandable that multiple lights, such as light A, ... light I, can be installed between controller 2 and splitter 1. These multiple lights can be connected in parallel, in series, or a combination of both.

[0041] In some embodiments, controller 2 may be configured to output raw single-wire data signals to splitter 1.

[0042] In some embodiments, the lighting splitter 1 can be configured to decode the original single-wire data signal and independently distribute it to the lighting control chips connected to the lamps in multiple branches, thereby controlling the light emission state of the lamps. In the lighting system of the present invention, independent control of lamps in multiple branches can be achieved, which can improve the flexibility and reliability of the system.

[0043] In some implementations, the lighting system may include multiple branch circuits 1. Each branch circuit 1 can independently control a certain number of branches.

[0044] In some implementations, the lighting system may include a central controller and a user interface. The central controller coordinates the operation of all branch circuits, ensuring synchronization and consistency across the entire system. It can monitor the status of each branch in real time and adjust signal distribution strategies as needed. A user-friendly interface allows users to easily configure and adjust the number of lights and other parameters for each branch. This interface can be graphical, support drag-and-drop operations, and provide real-time previews of lighting effects.

[0045] The present invention also provides a lighting fixture splitter 1. The lighting fixture splitter 1 of the present invention can also be referred to as a multi-output independent controller, a signal splitting device for RGB lighting fixtures, or simply as splitter 1.

[0046] Reference Figure 2 In some embodiments, the splitter 1 may include a decoding module 10. The decoding module 10 may be configured to decode the input raw single-wire data signal to output decoded data.

[0047] In some embodiments, the splitter 1 may include a branch light count confirmation module 20. The branch light count confirmation module 20 may be configured to confirm the branch light count configuration information for each branch.

[0048] In some embodiments, the splitter 1 may include a branch data output module 30. The branch data output module 30 may be configured to distribute decoded data to each branch according to the branch light number configuration information of each branch.

[0049] In this invention, by decoding the original single-line data signal, the specific composition information of the original single-line data signal can be obtained. Then, the branch data output module can distribute the decoded data to each branch according to the branch lamp configuration information. Thus, independent control of lamps or lamp groups in each branch can be realized, which can improve the flexibility and reliability of the system.

[0050] The original single-wire data signal can be the original signal transmitted to splitter 1 via a single-wire protocol.

[0051] In some embodiments, refer to Figure 4 The original single-wire data signal can include multiple 0 and 1 codes. A 0 code can have a high level (T0H) with a first predetermined pulse width. A 1 code can have a high level (T1H) with a second predetermined pulse width. The second predetermined pulse width can be greater than the first predetermined pulse width. Additionally, 0 and 1 codes can also have low levels (T0L, T1L) with certain pulse widths.

[0052] In some embodiments, refer to Figure 3 and Figure 5The decoding module 11 may include a clock signal generation unit 11. The clock signal generation unit 11 may be configured to generate a clock signal based on a first initial signal in the corresponding original single-wire data signal (i.e., ...). Figure 5 When the high-level duration in the Data field is greater than the high-level duration of the 0 code, a first pulse signal with a third predetermined pulse width is generated (i.e., Figure 5 (bit1, bit2, ..., bit8, etc.). A clock signal is generated by combining all the first pulse signals (i.e., ..., bit8). Figure 5 (The Clock in the middle).

[0053] In some embodiments, the idle level of the first initial signal can be a low level. Figure 5 (Taking a low level as an example). In other embodiments, the idle level of the first initial signal can also be a high level.

[0054] In some embodiments, the third predetermined pulse width may not be greater than the difference between the second predetermined pulse width and the first predetermined pulse width.

[0055] In some embodiments, refer again Figure 5 The decoding module may include a first judgment unit 12. The first judgment unit 12 may be configured to sample the original single-line data signal at a position where the clock signal has a first pulse signal, and determine that the decoding bit is 0 when the decoded bit corresponding to the first pulse signal of the sampled original single-line data signal is at a low level; and determine that the decoding bit is 1 when the decoded bit corresponding to the first pulse signal of the sampled original single-line data signal is at a high level. Thus, the composition of the original single-line data signal can be accurately decoded through the first judgment unit 12.

[0056] In some embodiments, the clock signal can be first matched or synchronized with the original single-line data signal before the first judgment unit 12 makes a judgment.

[0057] In some embodiments, the decoding module 10 may include an NSS signal generation unit. The NSS signal generation unit 13 may be configured to generate a second pulse signal with a fourth predetermined pulse width based on the first high-level rising edge of the second initial signal in the corresponding original single-line data signal, so as to generate an NSS signal.

[0058] In some embodiments, the endpoint of the second pulse signal can be the end of a data frame in the original single-line data signal. In other words, the duration of the second pulse signal in the NSS signal is the length of a data frame.

[0059] In some embodiments, refer to Figure 3 and Figure 6The decoding module 10 may include a second judgment unit 14. The second judgment unit 14 may be configured such that when it is determined that the low level time of the original single-line data signal exceeds a preset time, the position of the original single-line data signal is the end of a data frame.

[0060] Understandably, in a single-wire protocol, there is a reset time at the end of each data frame. When the second judgment unit 14 detects that the low-level time exceeds TR through the I / O port of splitter 1, it considers that a data frame has ended. The first high-level rising edge detected thereafter marks the start of the next data frame, until the next low-level time exceeds TR, at which point a high-level falling edge is generated. The synchronized Data signal during the high-level duration constitutes the length of one data frame.

[0061] In some embodiments, referring to 7, the original single-wire data signal (Data), clock signal (Clock), and NSS signal (NSS) can be transmitted synchronously to form a complete set of SPI signals (Serial Peripheral Interface) to realize the parsing of the single-wire protocol.

[0062] In other embodiments, the original single-wire data signal (Data) and clock signal (Clock) can also be combined to form I2C (Inter-Integrated Circuit) synchronous data transmission to realize the parsing of the single-wire protocol.

[0063] In some embodiments, the configuration information of the number of branch lights for each branch can be sent to the branch light number confirmation module 20 via a user terminal.

[0064] In some embodiments, the user terminal can be a remote control, mobile phone, tablet, or other device.

[0065] In some embodiments, the splitter 1 may further include a configuration module. The configuration module is used to configure the number of branch lights in each branch and send the configuration information of the number of branch lights in each branch to the branch light confirmation module.

[0066] In some embodiments, the configuration module may include buttons or a touchscreen, as well as related processing circuitry. Thus, users can actively configure the number of branch lights for each branch via buttons, a touchscreen, or other means.

[0067] Reference Figure 8 In some embodiments, the original single-line data signal may carry branch light configuration information for each branch.

[0068] In some embodiments, the branch lamp count confirmation module 30 may include multiple cascaded branching devices 20 (e.g., first branching device 21a, ..., Nth branching device 21n, etc.). The original single-wire data signal may have or carry configuration information for each lamp. The configuration information may include branch lamp count configuration information. The branching device may be configured to recognize the branch lamp count configuration information.

[0069] In some embodiments, the configuration information may also include information controlling the light emission state of the lamp (e.g., controlling the five primary colors RGBCW of the light color).

[0070] In some embodiments, the number of branch lights can be determined by carrying branch light configuration information in a single-line protocol sent by controller 2.

[0071] In some embodiments, the lamp of the present invention can be an RGBCW LED. Each lamp can be controlled by two chips (e.g., a WS2811 chip). The information for controlling the RGBCW LED can consist of 6 bytes. In the information for controlling the RGBCW LED, the first five bytes (40 bits) can be valid information for driving the LED's light emission state or color, used to control RGBCW respectively, and the last byte (8 bits) can carry branch lamp configuration information.

[0072] In some embodiments, a splitter device 20 can be configured to provide the configuration information for each LED in the original single-line data signal. Thus, the branch LED configuration information in the configuration information can be accurately identified through the corresponding splitter device 20, thereby facilitating the independent allocation of the configuration information to the corresponding branch.

[0073] In some embodiments, a splitter device 20 can be configured to represent the configuration information of a group of LEDs in each branch in the original single-line data signal. Each splitter device 20 can be connected to an output terminal of the branch data output module. In this case, each splitter device 20 can be connected to an output terminal of the branch data output module 30 and distribute the obtained branch LED configuration information to the branch it controls, thereby controlling the LEDs in the branch. This reduces the number of splitter devices 20 required and enables independent control of each branch.

[0074] In some embodiments, when the controller 2 sends data, the configuration information for the number of branch lights of the first branch device can be in the last byte of a data frame, the configuration information for the number of branch lights of the second branch device can be in the seventh byte from the end, the configuration information for the number of branch lights of the third branch device can be in the thirteenth byte from the end, and so on, with the number of branch lights of a branch device configured every 6 bytes.

[0075] In some embodiments, after the splitter 1 decodes the original single-wire data signal, the last byte can be used as the configuration information for the number of branch lamps in the current splitter device.

[0076] In some embodiments, the branch lamp count information configuration channel can be shifted backward by 6 bytes to ensure that subsequent cascaded branch devices can also use the last byte as the current branch lamp count information. For example, if the branch lamp count configuration information obtained by the current branch device 20 is Q, and the total data length of the decoded data frame is K bits, then the first 48Q bits of data are the output data of branch 1, and the last K-48Q bits of data are the output data of branch 2.

[0077] In some embodiments, the branch data output module 30 distributes decoded data to each branch via an SPI or PWM analog single-wire protocol. In this case, the branch data output module 30 can output the decoded data to each branch to control the LED beads connected to these branches. By simulating the single-wire protocol, the branch data output module 30 can simulate the signal format and timing issued by the controller, ensuring that the LED beads correctly understand and respond to these signals.

[0078] In this invention, by outputting independent signals to each branch, the branch data output module 30 enables each branch (and the LED beads on the branch) to be controlled individually, thereby enabling the LED beads on each branch to achieve different colors, brightness and mode changes.

[0079] The present invention also provides a signal splitting method, which can be implemented by the splitter 1 described above.

[0080] In some embodiments, the signal splitting method may include step S100, decoding the input raw single-wire data signal to output decoded data.

[0081] In some embodiments, the signal splitting method may include step S200, confirming the branch light configuration information for each branch.

[0082] In some embodiments, the signal splitting method may include step S300, in which decoded data is distributed to each branch according to the branch lamp number configuration information of each branch.

[0083] In some embodiments, step S100 (i.e., the decoding method) may include, based on the first initial signal, on the corresponding original single-line data signal (i.e., Figure 5 When the high-level duration in the Data field is greater than the high-level duration of the 0 code, a first pulse signal with a third predetermined pulse width is generated (i.e., Figure 5 (bit1, bit2, ..., bit8, etc.). A clock signal is generated by combining all the first pulse signals (i.e., ..., bit8). Figure 5 (The Clock in the middle).

[0084] In some embodiments, step S100 may include sampling the original single-line data signal at the position where the clock signal has the first pulse signal, and determining that the decoding bit is 0 when the decoding bit of the original single-line data signal corresponding to the first pulse signal is low; and determining that the decoding bit is 1 when the original single-line data signal is sampled and the decoding bit of the corresponding first pulse signal is high.

[0085] In some embodiments, step S100 may include generating a second pulse signal with a fourth predetermined pulse width based on the first high-level rising edge of the second initial signal in the corresponding original single-line data signal to generate an NSS signal.

[0086] In some embodiments, the endpoint of the second pulse signal can be the end of a data frame in the original single-line data signal. In other words, the duration of the second pulse signal in the NSS signal is the length of a data frame.

[0087] In some embodiments, step S100 may include determining that when the low-level time of the original single-line data signal exceeds a preset time, the position of the original single-line data signal is the end of a data frame.

[0088] In some embodiments, step S200 may include identifying branch light configuration information through cascaded branching devices.

[0089] For other embodiments of the above method, please refer to the description in the splitter section 1, which will not be repeated here.

[0090] According to the present invention, the splitter 1, the lighting system and the signal splitting method can realize independent control of the lighting fixtures, and can improve the flexibility and reliability of the system.

[0091] While the invention has been specifically described above in conjunction with the accompanying drawings and examples, it is to be understood that the above description does not limit the invention in any way. Those skilled in the art can make modifications and variations to the invention as needed without departing from its essential spirit and scope, and all such modifications and variations fall within the scope of the invention.

Claims

1. A lighting circuit breaker, characterized in that, include: A decoding module configured to decode the input raw single-wire data signal to output decoded data; The branch light count confirmation module is configured to confirm the branch light count configuration information for each branch; and The branch data output module is configured to distribute the decoded data to each branch according to the branch light number configuration information of each branch.

2. The lighting circuit breaker according to claim 1, characterized in that, The original single-line data signal includes multiple 0 codes and 1 codes. The 0 codes have a high level with a first predetermined pulse width, and the 1 codes have a high level with a second predetermined pulse width, wherein the second predetermined pulse width is greater than the first predetermined pulse width. The decoding module includes a clock signal generation unit, which is configured to generate a first pulse signal with a third predetermined pulse width based on the first initial signal having a high level duration in the corresponding original single-line data signal that is greater than the high level duration of the 0 codes, so as to generate a clock signal.

3. The lighting circuit breaker according to claim 2, characterized in that, The third predetermined pulse width is not greater than the difference between the second predetermined pulse width and the first predetermined pulse width.

4. The lighting circuit breaker according to claim 2, characterized in that, The decoding module includes a first judgment unit, which is configured to sample the original single-line data signal at the position where the clock signal has the first pulse signal, and determine that the decoding bit is the 0 code when the decoding bit of the original single-line data signal corresponding to the first pulse signal is low; and determine that the decoding bit is the 1 code when the decoding bit of the original single-line data signal corresponding to the first pulse signal is high.

5. The lighting circuit breaker according to claim 1, characterized in that, The decoding module includes an NSS signal generation unit, which is configured to generate a second pulse signal with a fourth predetermined pulse width based on the first high-level rising edge of the second initial signal in the original single-line data signal, so as to generate an NSS signal. The endpoint of the second pulse signal is the end of a data frame in the original single-line data signal.

6. The lighting circuit breaker according to claim 5, characterized in that, The decoding module includes a second judgment unit, which is configured such that when the low-level time of the original single-line data signal exceeds a preset time, the position of the original single-line data signal is the end of a data frame.

7. The lighting circuit breaker according to claim 1, characterized in that, The original single-line data signal carries the configuration information of the number of branch lights in each branch.

8. The lighting circuit breaker according to claim 1, characterized in that, The user terminal sends the configuration information of the number of branch lights for each branch to the branch light number confirmation module.

9. The lighting circuit breaker according to claim 1, characterized in that, It also includes a configuration module, which is used to configure the number of branch lights in each branch and send the number of branch lights in each branch to the number of branch lights confirmation module.

10. The lighting switch according to claim 7, characterized in that, The branch light count confirmation module includes multiple cascaded splitter devices. The original single-line data signal has configuration information for each light, and the configuration information includes the branch light count configuration information. The splitter device is configured to identify the branch light count configuration information.

11. The lighting circuit breaker according to claim 1, characterized in that, The branch data output module distributes the decoded data to each branch via an SPI or PWM analog single-wire protocol.

12. A signal splitting method, characterized in that, include: Decode the input raw single-wire data signal to output decoded data; Confirm the configuration information for the number of streetlights in each branch; and The decoded data is distributed to each branch according to the branch light configuration information of each branch.

13. A lighting system, characterized in that, The device includes a controller, multiple lamps and multiple lamp control chips arranged in multiple branches, and a lamp splitter as described in any one of claims 1-11. The lamp splitter has multiple output terminals, which are respectively connected to the multiple branches. Each lamp is equipped with at least one lamp control chip. The controller is configured to output the original single-wire data signal to the splitter. The lamp splitter is configured to decode the original single-wire data signal and independently distribute it to the lamp control chips connected to the lamps in the multiple branches, so that the lamp control chips control the light-emitting state of the lamps.

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