RGB intelligent dimming ceiling lamp convenient for quick assembly

Abstract

The application discloses a RGB intelligent dimming ceiling lamp convenient to quickly assemble, relates to the technical field of ceiling lamps, and is aimed at the basic structure of the RGB ceiling lamp, adopts a separated and parallel assembling mode for the RGB lamp beads, adopts a snap fastener type assembling mode to realize the purpose of quick assembling when the RGB lamp beads are damaged, and the overall operation process is extremely simple and has low professional requirements; and the operation and maintenance control system is arranged in the overall structure, the essence is to utilize the voltage and current change mode in the parallel mode, so that whether the overall ceiling lamp has the problems of color deficiency, damage and the like affecting the use effect can be preliminarily judged, and based on this, a supervision process is proposed, the essence adopts three modes of passage, interstage circuit breaking and total stage splitting, is used for marking the positions of the RGB lamp beads with the problems of color deficiency, damage and the like, so that the replacement process in the above content is facilitated, and the professional requirements when the RGB lamp beads are replaced are further reduced.

Description

Technical Field

[0001] This invention relates to the field of ceiling light technology, and more specifically to an RGB smart dimming ceiling light that is easy to assemble quickly. Background Technology

[0002] Ceiling lights are a type of lighting fixture. As the name suggests, they are called ceiling lights because the top of the fixture is relatively flat and the bottom is completely attached to the ceiling during installation. They contain a light source. For example, current RGB smart dimming ceiling lights mainly consist of multiple RGB LED beads arranged and combined to form a corresponding light source.

[0003] It should be noted that the RGB LEDs are mostly connected to the pins by soldering to achieve circuit connection. However, in daily life, the RGB LEDs may have abnormal problems such as missing colors or damage, requiring replacement. This requires professional personnel and specialized equipment to remove the soldered RGB LEDs and then resolder them. This process is time-consuming and complex, and the corresponding wires in the LEDs must be aligned with the corresponding pins. If non-professionals attempt to do this, it is difficult to complete the entire reassembly process, or it may lead to poor connection problems in the reassembled RGB LEDs.

[0004] It should be noted again that the overall RGB ceiling light is composed of multiple RGB LED beads. During long-term use, it is not possible to promptly and accurately detect the status of the RGB ceiling light, such as whether individual or multiple RGB LED beads have lost color or are damaged. Summary of the Invention

[0005] The purpose of this invention is to provide an RGB smart dimming ceiling light that is easy to assemble quickly, in order to solve the problems of long time consumption, complicated process and need for professional personnel / equipment in the daily maintenance of existing RGB ceiling lights.

[0006] The objective of this invention can be achieved through the following technical solution: an RGB smart dimming ceiling light that is easy to assemble quickly, including a mounting base, a lampshade and a dust cover. The mounting base and the dust cover are respectively located on the upper and lower sides of the lampshade. A power supply box assembly is installed at the center point of the mounting base near the outer wall of the lampshade, and multiple directional mounting strips are installed on the outer wall of the mounting base.

[0007] The directional mounting strip is provided with multiple movable buckles, and the directional mounting strip has directional slots at the positions corresponding to the movable buckles. The directional slots are used to place RGB LED beads. The power box assembly includes a controller, a mains connector, a unidirectional diode, an integrated circuit board, and a current sensor. The multiple RGB LED beads are connected in parallel with the mains connector through the integrated circuit board, and the unidirectional diode is connected in series with the RGB LED beads. The controller establishes an operation and maintenance control system corresponding to the multiple RGB LED beads. The operation and maintenance control system includes an information integration unit, a data flow analysis unit, and a terminal monitoring unit.

[0008] The information integration unit is used to record the voltage value of the mains connector and the real-time current data in the current sensor, and send the voltage value and real-time current data to the data stream analysis unit.

[0009] The data flow analysis unit uses voltage values ​​as reference data and real-time current data to establish a current difference ratio model. It sorts each RGB LED bead according to the setting order on the directional installation strip and numbers it as i, where i is a natural positive integer. It obtains the discontinuity coefficient through the current difference ratio model and sends the discontinuity coefficient to the segmented monitoring unit.

[0010] The segmented monitoring unit performs a monitoring process on the current difference ratio model based on the fault coefficient. The monitoring process includes integrated path analysis, inter-level circuit breaker analysis, and overall level splitting, and generates decision information for multiple numbered RGB LEDs through the monitoring process.

[0011] Further configuration: the directional slot is provided with a pin slot corresponding to the RGB LED bead, one end of the movable buckle is rotatably connected to the directional mounting strip, and the other end of the movable buckle is provided with a hidden buckle.

[0012] Further settings include: During use, the operation and maintenance control system is configured with the following operating procedures:

[0013] Operation process 1: A closed-loop circuit is formed by a mains power connector, a unidirectional diode, RGB LED beads and a current sensor. The mains power connector is used as the direct power source to provide power to each RGB LED bead, and the current sensor records the current value in the closed-loop circuit in real time, which is the real-time current data.

[0014] Operation Process 2: In the data flow analysis unit, the theoretical current value in the closed-loop circuit is calculated by the voltage value output to the RGB LED and the resistance value of multiple RGB LEDs. The theoretical current value and real-time current data are then sent to the current difference model to calculate the discontinuity coefficient.

[0015] Further settings: with These represent the voltage value, real-time current data, theoretical current value, and discontinuity coefficient in the closed-loop circuit, respectively. The calculation formula is: and preset The upper limit coefficient is , ,like The regulatory process is carried out; if If not, the regulatory process will not be carried out.

[0016] Further details are provided: The regulatory process includes the following steps:

[0017] Integrated path analysis action: Adjust the voltage value in the closed-loop circuit to increase based on the discontinuity coefficient. and with Recalculate the theoretical current value , , among them Used to represent a single RGB LED bead The current fraction generated by the voltage, and in At this value, the real-time current increase in the current sensor is recorded again. The loss of the RGB LED beads is calculated as follows: ,and Take the integer part;

[0018] Inter-level circuit breaker analysis action: Taking 10 RGB LEDs arranged in sequence as a self-test level N, voltage values ​​are provided to the RGB LEDs in one of the self-test levels N. Then, the discontinuity coefficient is applied again. If the self-test level has... In If so, proceed to the next self-check level N; if in self-check level N... In When this happens, the overall splitting process begins;

[0019] Overall split action: Power on each of the 10 RGB LEDs in the self-test level N one by one, and record the real-time current value of each RGB LED when it is powered on one by one. Use the real-time current value in the overall split action as the data for generating decision information. The decision information is used to indicate the operating status of the RGB LEDs.

[0020] Further settings include the following actions when generating decision information:

[0021] Action 1: Mark the ID information of the RGB LEDs that generate decision information and record it in the information integration unit. If the number of RGB LEDs generating decision information is equal to... If the number of RGB LEDs generating decision information is less than [a certain number], then the monitoring process will stop; If so, the regulatory process will continue;

[0022] Action 2: In Action 1, the numbers of the RGB LEDs that generate decision information are extracted, and the number of the RGB LED at that position is optimized to k. Then, the RGB LEDs at positions K+1 and K-1 are powered on one by one to indicate and mark the positions of the RGB LEDs that generate decision information.

[0023] The present invention has the following beneficial effects:

[0024] 1. Based on the basic structure of existing RGB ceiling lights, the installation method of the overall RGB LED beads is optimized and improved. Specifically, multiple RGB LED beads are assembled in a separate and parallel manner. The assembly process of a single RGB LED bead is completed by simply using a movable snap-fit. In order to ensure stable connection, the directional slots are specifically designed with pin slots corresponding to the pins on the RGB LED beads. The purpose is to complete the replacement of RGB LED beads in a simple way without the need for professional personnel and professional equipment, and to improve the stability of the pin position during the replacement of RGB LED beads.

[0025] 2. Based on the above, a maintenance and control system that links the operating status of multiple RGB LEDs is proposed. Its essence is to utilize the changes in voltage and current in the parallel circuit to preliminarily determine whether the overall ceiling light has problems such as missing colors or damage that affect the use effect. Based on this, a monitoring process is proposed, which essentially adopts three methods: continuous circuit, inter-level circuit breaking, and overall circuit splitting to mark the location of RGB LEDs with problems such as missing colors or damage. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a structural schematic diagram of an RGB smart dimming ceiling light that is easy to assemble according to the present invention;

[0028] Figure 2 This is a cross-sectional view of the lampshade in an RGB smart dimming ceiling light that is easy to assemble according to the present invention.

[0029] Figure 3 This is a schematic diagram of the mounting chassis in an RGB smart dimming ceiling light that is easy to assemble according to the present invention.

[0030] Figure 4 This is a schematic diagram of the directional mounting strip in an RGB smart dimming ceiling light that is easy to assemble according to the present invention;

[0031] Figure 5 This is a simplified diagram of the closed-loop circuit in an RGB smart dimming ceiling light that is easy to assemble according to the present invention.

[0032] Figure 6 This is a block diagram of the operation and maintenance control system in an RGB smart dimming ceiling light that is easy to assemble according to the present invention.

[0033] In the diagram: 1. Mounting chassis; 2. Lampshade; 3. Dust cover; 4. Oriented mounting strip; 5. Power supply box assembly; 6. RGB LED beads; 7. Movable snap-fit; 8. Oriented mounting slot. Detailed Implementation

[0034] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1

[0036] For existing RGB ceiling lights, when the internal RGB LEDs are damaged or have missing colors, professional personnel and specialized equipment are required to remove and resolder the soldered RGB LEDs. This process is time-consuming and complex, and requires the corresponding wires and pins within the LEDs to be aligned and connected. If non-professionals attempt to perform this reassembly, it may be difficult to complete the entire process, or it may lead to poor connections in the reassembled RGB LEDs. The following technical solution is proposed to address this issue:

[0037] Reference Figures 1-4 This embodiment of an RGB smart dimming ceiling light that is easy to assemble quickly includes a mounting base 1, a lampshade 2 and a dust cover 3. The mounting base 1 and the dust cover 3 are respectively set on the upper side and the lower side of the lampshade 2. A power box assembly 5 is installed on the center point of the mounting base 1 near the outer wall of the lampshade 2, and multiple directional mounting strips 4 are installed on the outer wall of the mounting base 1.

[0038] The directional mounting strip 4 is provided with multiple movable buckles 7, and the directional mounting strip 4 is provided with directional slots 8 at the positions corresponding to the movable buckles 7. The directional slots 8 are used to place RGB LED beads 6. The power box assembly 5 includes a controller, a mains connector, a unidirectional diode, an integrated circuit board and a current sensor. The multiple RGB LED beads 6 are connected in parallel with the mains connector through the integrated circuit board, and the unidirectional diode is connected in series with the RGB LED beads 6. The controller establishes an operation and maintenance control system corresponding to the multiple RGB LED beads. The operation and maintenance control system includes an information integration unit, a data flow analysis unit and a terminal monitoring unit. The directional slots 8 are provided with pin slots corresponding to the RGB LED beads 6. One end of the movable buckle 7 is rotatably connected to the directional mounting strip 4, and the other end of the movable buckle 7 is provided with a hidden buckle.

[0039] Basic principle: The technical solution proposed in this plan is basically the same as that of existing RGB ceiling lights, with the difference being that the RGB LEDs are installed in a movable manner, combined with... Figure 4 The following instructions apply: When assembling the RGB LED bead 6, the movable snap 7 needs to be opened, the RGB LED bead 6 needs to be placed into the directional slot 8, and it is also necessary to ensure that the pins of the RGB LED bead 6 are aligned with the pin slots in the directional slot 8. Then, the movable snap 7 is pressed into the directional mounting strip 4 to complete the assembly process.

[0040] Similarly, when it is necessary to replace the RGB LED 6, the replacement process can be completed by opening the movable clip 7, removing the RGB LED 6, and inserting the new RGB LED 6. The whole process does not require professional personnel or special equipment, and the process is extremely simple, and the overall structure is relatively simple.

[0041] Example 2

[0042] This embodiment describes the operation and maintenance control system in Embodiment 1:

[0043] Reference Figure 6 The information integration unit is used to record the voltage value of the mains connector and the real-time current data in the current sensor, and send the voltage value and real-time current data to the data flow analysis unit.

[0044] The data flow analysis unit uses voltage values ​​as reference data and real-time current data to establish a current difference ratio model. It sorts each RGB LED bead 6 according to the setting order of the directional installation strip 4 and numbers it as i, where i is a natural positive integer. The current difference ratio model is used to obtain the discontinuity coefficient, and the discontinuity coefficient is sent to the segmented monitoring unit.

[0045] The segmented monitoring unit performs a monitoring process on the current difference ratio model based on the fault coefficient. The monitoring process includes integrated path analysis, inter-level circuit breaker analysis, and overall level splitting. The monitoring process generates decision information for multiple numbered RGB LEDs.

[0046] During use, the operation and maintenance control system is configured with the following operating procedures:

[0047] Operation process 1: A closed-loop circuit is formed by the mains connector, unidirectional diode, RGB LED beads 6 and current sensor. The mains connector is used as the direct power source to provide power to each RGB LED bead 6. The current sensor records the current value in the closed-loop circuit in real time, which is the real-time current data.

[0048] Operation Process 2: In the data flow analysis unit, the theoretical current value in the closed-loop circuit is calculated by the voltage value output to the RGB LED 6 and the resistance value of multiple RGB LED 6, and the theoretical current value and real-time current data are sent to the current difference model to calculate the discontinuity coefficient.

[0049] by These represent the voltage value, real-time current data, theoretical current value, and discontinuity coefficient in the closed-loop circuit, respectively. The calculation formula is: and preset The upper limit coefficient is , ,like The regulatory process is carried out; if If not, the regulatory process will not be carried out.

[0050] Solution Description: This explanation is based on the content of Implementation Example 1, and refers to... Figure 5 Each unidirectional diode is connected in series with the RGB LED 6, forming a unique unit. Multiple unique units are then connected in parallel, forming a closed-loop circuit with the AC connector and current sensor. Based on the voltage and current relationship in the parallel circuit, it can be seen that the voltage in each unique unit is always equal, and the current in the overall closed-loop circuit is the sum of the currents in each unique unit. Therefore, it can be further understood that if each RGB LED 6 is in a lossless state and each RGB LED 6 has the same specifications, when a constant voltage is input, the current generated from the unique unit is a relatively constant value, and the current generated in the overall closed-loop circuit should be the sum of the currents of each unique unit.

[0051] Following the explanation above: If one of the RGB LEDs 6 has abnormal problems such as missing color or damage, it can be understood that there is no voltage passing through that unit, or the resistance value in that unit has increased, which ultimately leads to problems such as no current or reduced current, and thus the sum of the currents obtained becomes smaller.

[0052] Therefore, in this embodiment, The discontinuity coefficient, more specifically, indicates whether the overall closed-loop circuit experiences any abnormal state due to the operating status of the RGB LEDs 6. To represent, for example, to If we set it to 0.11, then in the most ideal state, Therefore, among them It equals 0, but in reality, assuming no RGB LEDs are damaged, However, the difference between the two is small, until it increases with... The continuous decrease led to Gradually increase, in which Greater than Then, the regulatory process begins; otherwise, the regulatory process is not required. This part is the key technical point of this embodiment.

[0053] Example 3

[0054] This embodiment is a supplementary explanation of Embodiment 2:

[0055] The regulatory process includes the following steps:

[0056] Integrated path analysis action: Adjust the voltage value in the closed-loop circuit to increase based on the discontinuity coefficient. and with Recalculate the theoretical current value , , among them Used to represent a single RGB LED bead 6 The current fraction generated by the voltage, and in At this value, the real-time current increase in the current sensor is recorded again. Calculate the loss of RGB LED 6. ,and Take the integer part;

[0057] Inter-level circuit breaker analysis action: Taking 10 RGB LEDs arranged in sequence as a self-test level N, provide voltage values ​​to the 10 RGB LEDs in one of the self-test levels N. Then, the discontinuity coefficient is applied again. If the self-test level has... In If so, proceed to the next self-check level N; if in self-check level N... In When this happens, the overall splitting process begins;

[0058] Overall split action: Power on each of the 10 RGB LEDs 6 in the self-test level N one by one, and record the real-time current value of each RGB LED 10 when it is powered on one by one. Use the real-time current value in the overall split action as the data for generating decision information. The decision information is used to indicate the operating status of the RGB LEDs 6.

[0059] The following actions are included when generating decision information:

[0060] Action 1: Mark the number information of the RGB LED 6 that generates the decision information and record it in the information integration unit. If the number of RGB LED 6 that generates the decision information is equal to... If the number of RGB LEDs generating decision information is less than 6, then the monitoring process will stop; If so, the regulatory process will continue;

[0061] Action 2: In Action 1, the number of the RGB LED 6 that generates the decision information is extracted, and the number of the RGB LED 6 at that position is optimized to k. Then, the RGB LEDs 6 at positions K+1 and K-1 are powered on one by one to indicate and mark the position of the RGB LED 6 that generates the decision information.

[0062] Solution Description: First, it should be noted that an RGB ceiling light contains multiple RGB LEDs. In order to simplify the self-test process, a constant is selected to divide the multiple RGB LEDs 6. In this embodiment, 10 RGB LEDs 6 are used as a self-test level N to avoid the time-consuming process of screening RGB LEDs 6 one by one.

[0063] Furthermore, the overall supervision process mainly adopts the "amplify first, then reduce" approach. Specifically, in the integrated path analysis, the voltage value in the closed-loop circuit is increased for further calculation. The purpose is to avoid the problem that the voltage value provided by the RGB ceiling light under normal operation cannot accurately determine whether the RGB LED beads 6 are damaged. Therefore, the current value and real-time current increment are calculated by amplification to roughly calculate the number of RGB LED beads 6 that have been damaged.

[0064] During the scaling down process, the self-test process for each self-test level N is the same as the normal operation of an RGB ceiling light, which still involves providing voltage values. Then, the discontinuity coefficient is applied again, and the result is determined based on the current state. The process then proceeds to the overall splitting action, which involves powering on each self-test level N that is experiencing an abnormal operating state to generate decision information.

[0065] It should also be noted that after identifying the positions of the RGB LED beads 6 that may be damaged, they need to be renumbered as K. In order to accurately locate the positions during the replacement process, it is necessary to ensure that the RGB LED beads 6 at positions K+1 and K-1 are in a powered-on state and to carry out the replacement process in Example 1.

[0066] In response, the controller proposed in the RGB ceiling light of this invention can simultaneously utilize existing wireless transmission technology, and can send overall decision information to software such as APP for remote control and monitoring.

[0067] In summary: Regarding the basic structure of an RGB ceiling light, the RGB LEDs are assembled in a separated and parallel manner. When an RGB LED is damaged, a snap-fit ​​assembly method allows for quick reassembly. The overall operation is extremely simple and requires minimal technical expertise. Furthermore, the overall structure incorporates a maintenance and control system. This system utilizes the voltage and current changes in the parallel connection to initially determine if the ceiling light has issues such as missing colors or damage affecting its performance. Based on this, a monitoring process is proposed, employing three methods: continuous circuit breaking, inter-level circuit breaking, and overall circuit splitting, to mark the location of RGB LEDs with missing colors or damage, facilitating the replacement process and further reducing the technical requirements for replacing RGB LEDs.

[0068] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An RGB smart dimming ceiling light that is easy to assemble quickly, comprising a mounting base (1), a lampshade (2), and a dust cover (3), characterized in that, The mounting chassis (1) and dust cover (3) are respectively located on the upper and lower sides of the lamp cover (2). The power box assembly (5) is installed on the center point of the mounting chassis (1) near the outer wall of the lamp cover (2), and multiple directional mounting strips (4) are installed on the outer wall of the mounting chassis (1). The directional mounting strip (4) is provided with multiple movable buckles (7), and the directional mounting strip (4) is provided with a directional groove (8) at the position corresponding to the movable buckle (7). The directional groove (8) is used to place RGB LED beads (6). The power box assembly (5) includes a controller, a mains connector, a unidirectional diode, an integrated circuit board and a current sensor. The multiple RGB LED beads (6) are connected in parallel with the mains connector through the integrated circuit board. The unidirectional diode is connected in series with the RGB LED beads (6). The controller has an operation and maintenance control system corresponding to the multiple RGB LED beads. The operation and maintenance control system includes an information integration unit, a data flow analysis unit, and a terminal monitoring unit. The information integration unit is used to record the voltage value of the mains connector and the real-time current data in the current sensor, and send the voltage value and real-time current data to the data flow analysis unit. The data flow analysis unit uses voltage values ​​as reference data and real-time current data to establish a current difference ratio model. It sorts each RGB LED bead (6) along the setting order of the directional installation strip (4) and numbers it as i, where i is a natural positive integer. It obtains the discontinuity coefficient through the current difference ratio model and sends the discontinuity coefficient to the segmented monitoring unit. The segmented monitoring unit performs a monitoring process on the current difference ratio model according to the fault coefficient. The monitoring process includes integrated path analysis action, inter-level circuit breaker analysis action and total level splitting action. The monitoring process generates decision information for multiple numbered RGB LED beads (6). During use, the operation and maintenance control system is configured with the following operating procedures: Operation process 1: A closed-loop circuit is formed by the mains connector, unidirectional diode, RGB LED (6) and current sensor. The mains connector is used as the direct power source to provide power to each RGB LED (6). The current sensor records the current value in the closed-loop circuit in real time, which is the real-time current data. Operation process 2: In the data flow analysis unit, the theoretical current value in the closed loop circuit is calculated by the voltage value output to the RGB LED (6) and the resistance value of multiple RGB LEDs (6), and the theoretical current value and real-time current data are sent to the current difference model to calculate the discontinuity coefficient. by These represent the voltage value, real-time current data, theoretical current value, and discontinuity coefficient in the closed-loop circuit, respectively. The calculation formula is: and preset The upper limit coefficient is , ,like The regulatory process is carried out; if If the monitoring process is not executed, the differential coefficient is used to indicate whether the overall closed-loop circuit is in an abnormal state due to the operating state of the RGB LED (6); The regulatory process includes the following steps: Integrated path analysis action: Adjust the voltage value in the closed-loop circuit to increase based on the discontinuity coefficient. and with Recalculate the theoretical current value , , among them Used to represent a single RGB LED (6) The current fraction generated by the voltage, and in At this value, the real-time current increase in the current sensor is recorded again. The loss of the RGB LED beads (6) is calculated as follows: ,and Take the integer part; Inter-level circuit breaker analysis action: Taking 10 RGB LEDs (6) arranged in sequence as a self-test level N, provide voltage values ​​to the 10 RGB LEDs (6) in one of the self-test levels N. Then, the discontinuity coefficient is executed again. If the self-test level has... In If so, proceed to the next self-check level N; If the self-check level N is In When this happens, the overall splitting process begins; Overall split action: Power on each of the 10 RGB LEDs (6) in the self-test level N one by one, and record the real-time current value when each RGB LED (10) is powered on one by one. Use the real-time current value in the overall split action as the data for generating decision information. The decision information is used to indicate the operating status of the RGB LEDs (6).

2. The RGB smart dimming ceiling light that is easy to assemble quickly according to claim 1, characterized in that, The directional slot (8) is provided with a pin slot corresponding to the RGB LED bead (6). One end of the movable buckle (7) is rotatably connected to the directional mounting strip (4), and the other end of the movable buckle (7) is provided with a hidden buckle.

3. The RGB intelligent dimming ceiling light that is easy to assemble quickly according to claim 1, characterized in that, The following actions are included when generating decision information: Action 1: Mark the number information of the RGB LED beads (6) that generate decision information and record it in the information integration unit. If the number of RGB LED beads (6) that generate decision information is equal to... If the number of RGB LED beads (6) generating decision information is less than 1, then the monitoring process will stop; If so, the regulatory process will continue; Action 2: In Action 1, the number of the RGB LED bead (6) that generates decision information is extracted, and the number of the RGB LED bead (6) at that position is optimized to k, so that the RGB LED bead (6) at the number K+1 and number K-1 are powered on one by one to indicate and mark the position of the RGB LED bead (6) that generates decision information.

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