LED spatial positioning control system and control method therefor

Abstract

The present invention relates to an LED spatial positioning control method and a control apparatus therefor. The method is implemented as an LED spatial positioning control system, and the method comprises the following steps: S10, making an LED lamp string comprise L electrically connected LED lamps, and configuring an identification address code for each LED lamp, wherein the identification address code is sequentially arranged according to a certain mathematical sequence, and the LED lamp string is arranged at a fixed position in a spatial environment; S20, a control apparatus receiving an image sequence control signal, which is sent by an image processing apparatus to a corresponding LED lamp in the LED lamp string, such that the LED lamp string controls S operating states of each LED lamp on the basis of each image sequence control signal; and S30, by means of the image processing apparatus, obtaining an image sequence state diagram of N LED lamp strings arranged in the environment, and on the basis of known conditions such as the logic sequence of the identification address codes, performing analytical calculation on an image sequence, and determining the identification address code corresponding to each LED lamp, wherein parameters N, L and S satisfy the following formula: SN<L.

Description

LED spatial positioning control system and control method thereof Technical Field

[0001] The present invention relates to the technical field of LED light string control, and in particular to an LED spatial positioning control system and a control method thereof. Background Art

[0002] With the entry of smart LED Christmas lights into the retail market, the demand for smart LED spatial positioning technology is growing. Currently, there are two main methods for LED spatial positioning in the Christmas light retail market: one is the method disclosed in Chinese patent CN101485233A, and the other is the method used in U.S. patent No. US10231318B2.

[0003] The first method is based on the premise that the LED to be spatially located does not have an identification address. Therefore, in the method disclosed in CN101485233A, the positioning system needs to both burn the address into the LED and spatially locate the LED. This method is very complex, requires many shots, and is time-consuming.

[0004] The second method relies on the LEDs that require spatial location already having identification addresses. This eliminates the need for the positioning system to reprogram these addresses. Instead, the system simply illuminates and photographs each LED individually according to a binary encoding scheme to perform spatial location. This method is relatively simpler than the first and requires fewer photographs, but there is still room for improvement. Summary of the Invention

[0005] The present invention provides an LED space positioning control system and a control method thereof, which can complete the space positioning of the LED using a relatively small number of shots.

[0006] The technical solution of the present invention is an LED space positioning control system, which includes: an LED light string installed in a certain space, the LED light string includes L electrically connected LED lights, each of the LED lights is configured with an identification address code, the identification address codes are arranged in sequence according to a certain mathematical sequence, and each LED light has a fixed position in the space environment; a control device: the control device is electrically connected to the LED light string, the control device receives the wireless positioning signal sent by the image processing device, converts the positioning signal into a control instruction to drive the LED lights to work, and presents S working states; an image processing device: the image processing device sends a wireless positioning signal according to the identification address codes built in the LED light string and the mathematical arrangement sequence of the identification address codes, after the control device receives the wireless positioning signal, it converts the positioning signal into a control instruction to drive the LED lights to work, the LED lights present S working states according to the control instruction, the image processing device uses a camera to capture and collect the working state images presented by the LED lights, and performs analysis and calculation based on the collected image data, so as to determine the identification address codes of the LED lights at each position installed in the space environment, and then generate a position map of the LED light string in this space environment; wherein, the number of times of shooting and collection required by the image processing device conforms to the following formula: S^N < L; where the parameter N is the number of shooting and collection times, the parameter L is the number of LED lights, and the parameter S is the working state of the LED lights; and wherein, the working state includes the on / off state, color and gray scale state of the LED lights.

[0007] Further, during the collection process, the image processing device can also collect the connection lines between the control device and the LED lights and other position information as auxiliary analysis information.

[0008] Further, the LED lights in the LED light string are electrically connected by wires, and the connection method is series connection, parallel connection or a combination of series and parallel connection.

[0009] Further, the image processing device is a smart phone or other device with a camera lens, which can collect the working state of the LED lights through the camera lens and send out corresponding wireless positioning signals.

[0010] An LED space positioning control method, characterized in that the method is implemented as the above-mentioned LED space positioning control system, and the method includes the following steps:

[0011] S10. The LED light string includes L electrically connected LED lights, each of the LED lights is configured with an identification address code, the identification address codes are arranged in sequence according to a certain mathematical sequence, and the LED light string is arranged at a fixed position in the space environment;

[0012] S20. The control device sends an image sequence control signal to the corresponding LED in the LED string upon receiving it from the image processing device, and each LED in the LED string is controlled by each image sequence control signal to be in S states.

[0013] S30. Obtain an image sequence state map of N LED strings arranged in the environment through the image processing device; and based on known conditions such as the logical sequence of the identification address codes, perform analysis and calculation on the image sequence to determine the spatial position of the identification address code corresponding to each LED.

[0014] Among them, the parameters N, L, and S satisfy the following formula: S^N < L. The beneficial effects of the present invention are as follows.

[0015] Under the following conditions: the LEDs in the LED string are configured with identification address codes, the identification address codes of the LEDs are arranged in the order of natural numbers, and the LED pitch is fixed. Using the above method for LED spatial positioning, compared with the existing methods, it is possible to reduce the number of times of collecting images for spatial positioning and effectively locate the LED string.

[0016] In addition, some of the additional aspects and advantages of the present invention will be given in the following description, some will become obvious from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG. 1 is a schematic diagram of an LED spatial positioning control system according to an embodiment of the present invention.

[0018] FIG. 2 is a schematic diagram of the layout of an LED string in a spatial environment in the first embodiment of an LED spatial positioning control method according to an embodiment of the present invention.

[0019] FIG. 3 is an image sequence state map collected by an LED string in the first embodiment of an LED spatial positioning control method according to an embodiment of the present invention.

[0020] FIG. 4 is a control position map of each LED in an LED string in a spatial environment in the first embodiment of an LED spatial positioning control method according to an embodiment of the present invention.

[0021] FIG. 5 is a schematic diagram of the layout of an LED string in a spatial environment in the second embodiment of an LED spatial positioning control method according to an embodiment of the present invention.

[0022] FIG. 6 is a first type of image sequence state map of an LED string in the second embodiment of an LED spatial positioning control method according to an embodiment of the present invention.

[0023] FIG. 7 is a second type of image sequence state map of an LED string in the second embodiment of an LED spatial positioning control method according to an embodiment of the present invention.

[0024] FIG8 is a schematic diagram of an LED light string arranged in a spatial environment according to a third embodiment of the LED spatial positioning control method according to an embodiment of the present invention.

[0025] FIG. 9 is a diagram illustrating a first image sequence state in an LED light string according to a third embodiment of the LED spatial positioning control method according to an embodiment of the present invention.

[0026] FIG10 is a diagram showing a first control position of each LED lamp of an LED lamp string in a spatial environment according to a third embodiment of the LED spatial positioning control method of an embodiment of the present invention.

[0027] FIG. 11 is a diagram illustrating a second control position of each LED lamp of an LED lamp string in a spatial environment according to a third embodiment of the LED spatial positioning control method according to an embodiment of the present invention.

[0028] FIG. 12 is a diagram illustrating a second image sequence state in an LED light string according to a third embodiment of the LED spatial positioning control method according to an embodiment of the present invention.

[0029] FIG13 is a schematic diagram of an LED light string arranged in a spatial environment according to a fourth embodiment of an LED spatial positioning control method according to an embodiment of the present invention.

[0030] FIG. 14 is a diagram showing a first image sequence state in an LED light string according to a fourth embodiment of the LED spatial positioning control method according to an embodiment of the present invention.

[0031] FIG. 15 is a diagram illustrating a second image sequence state in an LED light string according to a fourth embodiment of the LED spatial positioning control method according to an embodiment of the present invention.

[0032] FIG16 is a diagram showing a first control position of each LED lamp in a spatial environment of an LED lamp string according to a fourth embodiment of the LED spatial positioning control method according to an embodiment of the present invention.

[0033] 17 is a diagram illustrating a second control position of each LED lamp in a spatial environment of an LED lamp string according to a fourth embodiment of the LED spatial positioning control method according to an embodiment of the present invention.

[0034] FIG. 18 is a diagram showing a third image sequence state in an LED light string according to a fourth embodiment of the LED spatial positioning control method according to an embodiment of the present invention.

[0035] FIG. 19 is a diagram showing an image sequence state in an LED light string according to a fifth embodiment of the LED spatial positioning control method according to an embodiment of the present invention.

[0036] FIG20 is a diagram showing the control position of each LED lamp of an LED lamp string in a spatial environment according to a fifth embodiment of the LED spatial positioning control method of an embodiment of the present invention.

[0037] FIG21 is a schematic diagram of an LED module in a spatial environment according to a sixth embodiment of the LED spatial positioning control method according to an embodiment of the present invention.

[0038] FIG. 22 is a diagram showing an image sequence state in an LED module according to a sixth embodiment of the LED spatial positioning control method according to an embodiment of the present invention.

[0039] 23 is a diagram showing the control positions of each LED lamp of an LED module in a spatial environment according to a sixth embodiment of the LED spatial positioning control method according to an embodiment of the present invention.

[0040] FIG. 24 is a schematic diagram of an LED module assembly in a spatial environment according to a sixth embodiment of the LED spatial positioning control method according to an embodiment of the present invention.

[0041] FIG. 25 is a flow chart of a method for controlling LED spatial positioning according to an embodiment of the present invention. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this technical field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0043] 2 to 24 , in some embodiments, the present invention discloses an LED spatial positioning control system, which includes:

[0044] An LED light string installed in a space, as shown in Figures 2, 5, 8, and 13, comprises L electrically connected LED lights. The LED light string itself is flexible and can be arranged into various configurations as shown in Figures 2, 5, 8, and 13 in environments such as Christmas trees and fences. The LED lights are connected to each other by wires of the same length. Each LED light is assigned an identification address code, which is arranged sequentially according to a mathematical sequence. Each LED light has a fixed position in the space. The LED lights in the LED light string are electrically connected by wires, and the connection method is series, parallel, or a combination of parallel and series.

[0045] Control device: The control device is electrically connected to the LED light string. The control device receives the wireless positioning signal sent by the image processing device, converts the positioning signal into a control instruction to drive the LED light to work, and presents S working states.

[0046] Image processing device. The image processing device can be simply taken with a mobile phone camera: the image processing device sends a wireless positioning signal based on the identification address code built into the LED light string and the mathematical arrangement sequence of the identification address code. After receiving the wireless positioning signal, the control device converts the positioning signal into a control instruction to drive the LED light to work. The LED light presents S working states according to the control instruction. The image processing device uses a camera to capture the working state image presented by the LED light, and performs analysis and calculation based on the collected image data to determine the identification address code of the LED light installed at each position in the spatial environment, and then generates a position map of the LED light string in the spatial environment. The image processing device is a smart phone or other device with a camera lens, which can capture the working state of the LED light through the camera lens and send a corresponding wireless positioning signal. During the acquisition process, the image processing device can also collect information including the connection line between the control device and the LED light and other position information as auxiliary analysis information.

[0047] The number of times the image processing device needs to capture and collect data complies with the following formula: S^N <L。

[0048] Among them, parameter N is the number of shooting and collection times, parameter L is the number of LED lights, and parameter S is the working status of the LED lights.

[0049] The working state includes the on / off state, color and grayscale state of the LED light. In the following multiple embodiments, the codes A and B are used to represent two different working states of the LED light.

[0050] The present invention also discloses a method for controlling LED spatial positioning, wherein the method implements the above-mentioned LED spatial positioning control system and comprises the following steps:

[0051] S10. The LED light string includes L electrically connected LED lights, each of which is configured with an identification address code, and the identification address codes are arranged in sequence according to a certain mathematical sequence. The LED light string is arranged in a fixed position in a spatial environment.

[0052] S20 , the control device receives an image sequence control signal sent by the image processing device to the corresponding LED light in the LED light string, so that the LED light string controls S states of each LED light according to the image sequence control signal each time.

[0053] S30. Obtain, by means of the image processing device, an image sequence state diagram of the arrangement of the N LED light strings in the environment. Analyze and calculate the image sequence based on known conditions such as the logical sequence of the identification address codes to determine the spatial location of the identification address code corresponding to each LED light.

[0054] Among them, the parameters N, L and S conform to the following formula, S^N <L。

[0055] Continuing to refer to the accompanying drawings in this manual, let's take the spatial positioning of a string of 16 LEDs as an example. This string has two known conditions:

[0056] In the first embodiment, the identification address codes of the LED lights in the light string are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, and 16, and are arranged in order from small to large; the LEDs are electrically connected to each other in a string with a 10 cm long wire.

[0057] In the first embodiment, the light string is installed in a certain space in a straight line, as shown in FIG2 :

[0058] The image processing device sends a wireless positioning data to the control device (i.e., the control mode corresponding to the image sequence control signal), wherein the identification address codes 1 to 8 are in state A, and the identification address codes 9 to 16 are in state B, as shown in the following table:

[0059] After receiving the wireless positioning data from the image processing device (i.e., the control method corresponding to the image sequence control signal), the control device drives the LEDs to operate and causes the 16 LEDs to present two working states, A and B, where A can be red and B can be blue. The image processing device uses a lens to capture data of the light string, obtains image data as shown in Figure 2, and analyzes it:

[0060] In FIG3 , the order of the LED lights is very clear. Combined with the known conditions, the control position diagram of the light string can be determined based on the image data of FIG3 alone, as shown in FIG4 :

[0061] Here, S=2, N=1, L=16, 2 1 <16, i.e. S N <L。

[0062] In the second embodiment, the light string is installed in a certain space in a curved shape, as shown in FIG5 :

[0063] In this embodiment, although the positions of the LED lights are irregular, the distances between the LED lights and the order of the LED lights are very clear, so the spatial position (structure) diagram of the LED light string can still be photographed and located according to the method in Figure 1, as shown in Figures 6 and 7.

[0064] In the third embodiment, the LED lights are arranged in a circle, as shown in FIG8 .

[0065] The image processing device sends the first wireless positioning data to the control device (i.e., the control mode corresponding to the image sequence control signal), wherein the identification address codes 1 to 8 are in state A, and the identification address codes 9 to 16 are in state B, as shown in the following table:

[0066] After receiving the wireless positioning data from the image processing device (i.e., the control mode corresponding to the image sequence control signal), the control device drives the LEDs, causing the 16 LEDs to assume two states, A and B. A is red, and B is blue. The image processing device uses a lens to capture the light string for the first time, generating and analyzing the image data shown in Figure 9.

[0067] As can be seen from Figure 9, the A status LED and the B status LED are connected in area 1 and area 2. Area 1 and area 2 may both have identification address codes 1 and 16 or identification address codes 8 and 9.

[0068] Based on the above conditions, there are two possible arrangements of the LEDs in FIG9 , as shown in FIG10 and FIG11 .

[0069] Here, the image processing device sends the second positioning data (i.e., the control mode corresponding to the image sequence control signal) to the control device, as shown in the following table:

[0070] The image processing device thus collects image data as shown in FIG12 .

[0071] Combining the first and second shots, we can get the following LED status, see the table below:

[0072] The result is very clear: the AA state can only be the identification address code 1, the AB state can only be the identification address code 8, the BA state can only be the identification address code 9, and the BB state can only be the identification address code 16. In other words, the identification address codes 1 and 16 can only be located in area 1 in Figure 9.

[0073] The image processing device can thus obtain the position (structure) diagram of the LED lamp, which is shown in FIG10 .

[0074] Here, S=2, N=2, L=16, 2 2 <16, i.e. S N <L。

[0075] In this embodiment, if the image processing device can determine the specific position of the control device and further determine the area where the identification address code 1 is located, the second acquisition and shooting can be omitted.

[0076] The spatial installation position of the LED lamp of the fourth embodiment is shown in FIG13 .

[0077] The image processing device sends the first wireless positioning data to the control device (i.e., the control mode corresponding to the image sequence control signal), wherein the identification address codes 1 to 8 are in state A, and the identification address codes 9 to 16 are in state B, as shown in the following table;

[0078] After receiving the wireless positioning data from the image processing device (i.e., the control mode corresponding to the image sequence control signal), the control device drives the LEDs to operate and causes the 16 LEDs to present two states, A and B, where A can be red and B can be blue. The image processing device uses the lens to perform the first data acquisition and capture of the light string, obtaining the image data shown in Figure 14:

[0079] From the image data in FIG. 14 , it can only be confirmed that the identification address codes 1 to 8 and 9 to 16 are located in the left and right areas respectively, but the relationship between the identification address codes in the same area is unclear and no judgment can be made.

[0080] Here, the image processing device sends the second positioning data (i.e., the control mode corresponding to the image sequence control signal) to the control device, as shown in the following table:

[0081] The image processing device thereby collects the second image data, as shown in FIG15 .

[0082] Combining the first shot and the second shot, the following identification address code status table can be obtained.

[0083] Therefore, we can conclude that in Figure 15, identification address codes 1, 2, 3, and 4 are located in area 1, identification address codes 5, 6, 7, and 8 are located in area 2, identification address codes 9, 10, 11, and 12 are located in area 3, and identification address codes 13, 14, 15, and 16 are located in area 4. Based on the known conditions, there are two possible spatial locations (architectures) for this light string: Possibility 1 is shown in Figure 16, and Possibility 2 is shown in Figure 17.

[0084] Here, the image processing device sends the third positioning data (i.e., the control mode corresponding to the image sequence control signal) to the control device (see Figure 18), as shown in the following table:

[0085] Combining the first shot and the second shot, the following identification address code status table can be obtained.

[0086] This state table shows that the identification address codes 1 and 2 are located above 3 and 4, which ultimately determines that FIG16 is the spatial position of the light string (architecture diagram).

[0087] Here, S=2, N=3, L=16, 2 3 <16, i.e. S N <L。

[0088] In the fourth embodiment, the following shooting and collecting method can also be adopted. Combined with the known conditions, it can still be determined that FIG16 is the spatial position (architecture diagram) of the light string.

[0089] The spatial installation position of the LED light string in the fifth embodiment is the same as that of the LED light string in the fourth embodiment, as shown in FIG13 for details.

[0090] Based on the known conditions, in general, it is only necessary to accurately position and photograph some LED lights, while blurring the positions of other LEDs to obtain a relatively accurate spatial position (structure) diagram. For example, for the LED lights in Figure 13, the following shooting method can be used.

[0091] Through this icon, the identification address codes 1, 3, 5, 7, 9, 11, 13, and 15 can be determined, while 2, 4, 6, 8, 19, 12, 14, and 16 are in a fuzzy state, as shown in Figure 19.

[0092] However, based on the known conditions, we can infer that the LED lights located between identification address codes 1 and 3 are identified as identification address code 2, and the LED lights located between identification address codes 3 and 5 are identified as identification address code 4. By analogy, we can obtain a complete spatial location (architecture) diagram, as shown in Figure 20.

[0093] Here, S=2, N=3, L=16, 2 3 <16, i.e. S N <L。

[0094] In the sixth embodiment, the LED lamps are fixed on a fixed frame according to a certain fixed mathematical sequence and a certain fixed distance. The position of each LED lamp with a different address code in the fixed frame is unique, thus becoming a certain LED display module, such as the triangular module with 15 LEDs embedded in Figure 21.

[0095] Take the triangle module in Figure 21 as an example. If the triangle module is placed randomly, as long as the address of the three LEDs in the triangle module is located and photographed, the address of the other LEDs can be calculated based on the known mathematical sequence and distance.

[0096] For example, Figure 22 shows the LED arrangement of the triangle module.

[0097] Through this icon, the identification address codes 1, 11, and 15 can be determined, while 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, and 14 are in a fuzzy state, as shown in Figure 22.

[0098] However, based on the known conditions, we can deduce that the LED lights between identification address codes 1 and 11 are identification address codes 2, 3, 4, 5, 6, 7, 8, 9, 10, and the LED lights between identification address codes 11 and 15 are identification address codes 12, 13, 14. And so on, a complete spatial position (architecture) diagram can be obtained, as shown in Figure 23 of the attached drawings.

[0099] Here, S = 2, N = 3, L = 15, 2 3 <15, that is, S N <L. In the sixth embodiment, when triangular modules with different addresses are connected together (as shown in Figure 24 of the attached drawings), each triangular module only captures a fixed three LEDs. For example, there are a total of 9 LEDs at the top of the triangle. The address space distribution of all LEDs in these triangular modules can be deduced and confirmed.

[0100] Here, S = 2, N = 4, L = 45, 2 4 <45, that is, S N <L.

[0101] In all the above embodiments, if other position parameters such as control devices and connecting lines are added, the number of shootings can be further reduced.

[0102] Hereinafter, the concept, specific structure and technical effects of the present invention will be clearly and completely described in combination with the embodiments and the attached drawings to fully understand the purpose, scheme and effects of the present invention.

[0103] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to another feature, or indirectly fixed or connected to another feature. The singular forms of "a", "the" and "said" used herein are also intended to include the plural forms, unless the context clearly indicates otherwise. In addition, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art of this technical field. The terms used in the description of this specification are only for describing specific embodiments, rather than for limiting the present invention. The term "and / or" used herein includes any combination of one or more of the related listed items.

[0104] It should be understood that, although the terms first, second, third, etc. may be used to describe various elements in the present disclosure, these elements should not be limited to these terms. These terms are only used to distinguish elements of the same type from each other. For example, without departing from the scope of the present disclosure, the first element may also be referred to as the second element, and similarly, the second element may also be referred to as the first element. The use of any and all examples or exemplary language ("for example", "such as", etc.) provided herein is only intended to better illustrate embodiments of the present invention, and unless otherwise required, will not impose limitations on the scope of the present invention.

Claims

1. An LED spatial positioning control system, characterized in that: include: LED light strings installed in a certain space, The LED light string includes L electrically connected LED lights, each of which is configured with an identification address code, the identification address codes are arranged in sequence according to a certain mathematical sequence, and each LED light has a fixed position in the spatial environment; Control device: The control device is electrically connected to the LED light string, receives the wireless positioning signal sent by the image processing device, converts the positioning signal into a control instruction to drive the LED light to work, and presents S working states; Image processing device: The image processing device sends a wireless positioning signal based on the identification address code built into the LED light string and the mathematical arrangement sequence of the identification address code. After receiving the wireless positioning signal, the control device converts the positioning signal into a control instruction to drive the LED light to operate. The LED light presents S working states according to the control instruction. The image processing device uses a camera to capture images of the working states presented by the LED light, and analyzes and calculates based on the collected image data to determine the identification address code of the LED light installed at each position in the spatial environment, and then generates a position map of the LED light string in the spatial environment; The number of times the image processing device needs to capture and collect data complies with the following formula: S N <L; Among them, parameter N is the number of shooting acquisitions, parameter L is the number of LED lights, and parameter S is the working status of the LED lights; And wherein, the working status includes the on and off, color and grayscale status of the LED light.

2. The LED spatial positioning control system according to claim 1, wherein: During the acquisition process, the image processing device may also acquire information including the connection line between the control device and the LED lamp and other position information as auxiliary analysis information.

3. The LED spatial positioning control system according to claim 1, characterized in that: The LED lamps in the LED lamp string are electrically connected by wires, and the connection method is series connection, parallel connection or a combination of parallel and series connection.

4. The LED spatial positioning control system according to claim 1, wherein the image processing device is a smart phone or other device with a camera lens, which can capture the working status of the LED lamp through the camera lens and send a corresponding wireless positioning signal.

5. A method for controlling LED spatial positioning, characterized in that: The method implements the LED spatial positioning control system according to any one of claims 1 to 4, and the method comprises the following steps: S10, the LED light string includes L electrically connected LED lights, each of the LED lights is configured with an identification address code, the identification address codes are arranged in sequence according to a certain mathematical sequence, and the LED light string is arranged in a fixed position in a spatial environment; S20, the control device receives an image sequence control signal sent by the image processing device to the corresponding LED light in the LED light string, so that the LED light string controls S states of each LED light according to each image sequence control signal; S30, obtaining, by the image processing device, an image sequence state diagram of the arrangement of the N LED light strings in the environment; and analyzing and calculating the image sequence based on known conditions such as the logical sequence of the identification address codes to determine the spatial position of the identification address code corresponding to each LED light; Among them, the parameters N, L and S conform to the following formula, S N <L。

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