WO2021143884A1 - Method for controlling string of lamps by means of power line carrier, and electronic billboard and apparatus - Google Patents

Abstract

Disclosed are a method for controlling a string of lamps by means of a power carrier, and an electronic billboard and an apparatus. The method is used for controlling a string of serially connected lamps by means of a power line, in which the string of lamps is provided with a plurality of lamp sources, and each lamp source comprises a main control unit and at least one lamp bead. The method comprises the following steps: obtaining lamp source addresses, lamp bead addresses, and display modes to be controlled by means of received randomly sampled data or specified data, so as to form a control string; combining a header string, the control string, and an end string into a control instruction; and loading the control instruction into a power line, and issuing the control instruction to the lamp sources for execution. A control string and a control instruction are formed by means of randomly sampled data or specified data, such that lamp beads of a string of lamps can be controlled one by one according to specific requirements, and the operation of the lamp beads of the string of lamps can also be randomly controlled by means of the randomly sampled data, thereby meeting diverse needs and bringing about a better functionality thereof. Meanwhile, the transmission of the control instruction by means of a power line carrier requires no additional wire harness, and same thus simplifies the transmission structure.

Description

Method for controlling light string by power carrier, electronic billboard and device Technical field

The present invention relates to a light string control technology, in particular to a method, an electronic billboard and a device for controlling the light string by a power carrier.

Background technique

The light string is actually connected in series with several lamp beads through wires to form a light strip. In actual use, the light string can be straightened and used, or it can be used in various shapes (such as star, square, triangle waiting). In the prior art, the light string has a controller, and the controller directly controls all the lights of the entire light string to work synchronously. When users use light strings, in order to achieve more diversified effects, they sometimes need to make the light beads of the light string work asynchronously. The existing light string still cannot meet the requirements and needs to be improved.

Summary of the invention

The purpose of the present invention is to overcome the shortcomings of the prior art by providing a method, an electronic billboard and a device for controlling a light string by a power carrier, which can individually control the operation of the light beads in the light string, and at the same time reduce the use of wire harnesses. Only two wires of power supply and ground are needed, no additional dedicated wire harness for address positioning is needed, which simplifies the transmission structure and is easy to mass produce.

In order to achieve the above objective, the present invention adopts the following technical solutions: a method for controlling a light string by a power carrier, which is used to control a light string connected in series via a power line. The light string is provided with several light sources, and the light source includes a main control unit and at least A lamp bead, the method includes the following steps:

Obtain the lamp source address, lamp bead address and display mode to be controlled from the received random sampling data or specified data to form a control string;

Combine the head character string, control character string, and end character string to form a control instruction;

Load the control command into the power line and send it to the light source for execution.

Random sampling data is obtained by successively sampling the data stream at a set frequency. Each time the data stream is sampled, 4 bytes of hexadecimal data are collected, of which two bytes are used to determine the address of the lamp source, and the remaining one byte is used to determine the lamp beads in the lamp source, and finally One byte is used to determine the working mode of the light source.

Or, each time the data stream is sampled, 4 bytes of hexadecimal data are collected, two of which are combined into a four-digit hexadecimal number, and three of the hexadecimal numbers are intercepted to determine The address of the light source; the two hexadecimal digits of the remaining one byte are used to intercept one of the two hexadecimal digits to determine the lamp bead in the light source; To determine the working mode of the light source.

Or, each time the data stream is sampled, 4 bytes of hexadecimal data are collected, and the two bytes are combined into a four-digit hexadecimal number to calculate the remainder of the number of light sources to obtain the light source’s Address; the two hexadecimal numbers of the remaining one byte calculate the remainder of the number of lamp beads in the lamp source to determine the lamp bead; the two hexadecimal numbers of the last byte have a working mode of the lamp source The remainder of the quantity is calculated to determine the working mode of the light source.

If the specified data is received and the specified content to be displayed is included in the specified data, the lamp source address collection corresponding to the specified content is queried, and the specified data and the queried lamp source address collection are combined into a control string.

Or, if the specified data is received and the specified data is the set default command string, the specified data will be directly used as the control string.

When more than one control character string is composed, a separator character string is inserted between the control character strings.

The invention also discloses an electronic billboard, which adopts a method of controlling the light string by a power carrier. The electronic billboard is a light string matrix composed of at least one light string. The electronic billboard is equipped with a font module. If the designated data is received and the designated data includes the designated content to be displayed, the font module will be queried and retrieved the collection of lamp source addresses corresponding to the designated content.

The present invention also discloses an electronic device including a processor and a memory, and computer readable instructions are stored in the memory, and the computer readable instructions are executed by the processor to realize a method for controlling a light string by a power carrier.

The present invention also discloses a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, a method for controlling a light string by a power carrier is realized.

Compared with the prior art, the present invention has the beneficial effects that the control string and control instructions are formed by randomly sampling data or designated data, and the lamp beads of the light string can be controlled one by one according to specific needs, and the random sampling data can also be controlled randomly. The work of the lamp string lamp beads not only meets the diversified needs, but also can follow the random sampling data to produce more random effects, and the functionality is better. At the same time, it also uses the power line carrier transmission control command, only the power supply and the ground are required. No additional special wire harness for address positioning is required, which simplifies the transmission structure and is easy to mass produce.

Description of the drawings

Fig. 1 is a simplified flowchart of a method for controlling a light string by a power carrier of the present invention.

2 is a schematic diagram of the connection structure of the light string of the present invention.

Fig. 3 is a schematic diagram of the structure of the connection of more than one light string according to the present invention.

It should be noted that the products shown in the above view are all adapted to the size of the drawing and the view is clear and appropriately reduced/enlarged, and there is no restriction on the size of the product shown in the view.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of them.的实施例。 Example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

In addition, the described features, structures, or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to give a sufficient understanding of the embodiments of the present disclosure. However, those skilled in the art will realize that the technical solutions of the present disclosure can be practiced without one or more of the specific details, or other methods, components, materials, devices, steps, etc. can be used. In other cases, well-known structures, methods, devices, implementations, materials, or operations are not shown or described in detail to avoid obscuring aspects of the present disclosure.

The block diagrams shown in the drawings are merely functional entities, and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in the form of software, or implemented in one or more software-hardened modules, or part of these functional entities, or in different networks and/or processor devices and/or microcontroller devices. Realize these functional entities.

The method of power line carrier control light string is used to control the light string connected in series through the power line. As shown in Fig. 1, the method for controlling a light string by a power carrier in this embodiment includes the following steps: Step S1: Obtain the address of the light source, the address of the light bead and the display mode to be controlled through the received random sampling data or designated data. Compose a control string; step S2, compose the head string, control string, and end string to form a control instruction; step S3, load the control instruction into the power line and send it to the light source for execution. As shown in Figure 2, a light string is provided with several light sources and a carrier modulator, and the carrier modulator mainly controls the light sources and lamp beads of the string of lights. The light source includes a main control unit and four lamp beads of different colors (for example, red, green, blue, and white). The main control unit is used to read control instructions and control the work of the lamp beads. In other embodiments, the number of lamp beads that can be set in the lamp source can be adjusted. As shown in Fig. 3, when there is more than one light string, all light strings are directly connected in parallel physically or connected to the main processor through a sub-processor, and the main processor respectively regulates the corresponding light strings.

In step S1, random sampling data is obtained by sampling the data stream successively at a set frequency. Setting the frequency means sampling every few seconds, for example, collecting several bytes of data in the data stream every two seconds. The set frequency can be determined at the factory or can be freely modified by the product user. The sampled data stream can be a wired data stream. For example, during data port transmission, the data stream of the data port is directly read, regardless of whether the data stream is encrypted or not. The sampled data stream can also be a data stream transmitted wirelessly, for example, the data stream can be directly read on a wireless network card. Random sampling data has a high degree of randomness, so the subsequent control strings obtained will also have extremely high randomness, so that the lighting effect of the control light string will not be easily repeated.

In this embodiment, 4 bytes of hexadecimal data are collected each time the data stream is sampled. Two of the bytes are used to determine the address of the lamp source. Generally, the first two consecutive bytes can be used as the lamp source address. For example, two consecutive bytes are 006A, which is 106 when converted to decimal, which is the 106th light source. When the number of light sources in a single light string is not many (less than 4096), a four-digit hexadecimal number can be intercepted from three hexadecimal numbers to determine the address of the light source, such as random sampling data The two bytes are C10F, and the lower three digits 10F are intercepted, which is 271 in decimal, as the lamp source address. Of course, the upper three digits C10 can also be intercepted as the lamp source address. In other embodiments, when the number of light sources in a single light string is not large (less than 4096), a four-digit hexadecimal number can also be used to calculate the remainder of the number of light sources of the light string to obtain The remainder must not be greater than the number of light sources in the light string, which can be used as the address of the light source, and if the remainder is zero, the address of the light source is 000.

Among the remaining two bytes, one byte is used to determine the lamp beads in the lamp source, and the last byte is used to determine the working mode of the lamp source. If the number of lamp beads in the lamp source is small, for example, there are four lamp beads in the lamp source of this embodiment, one of the bytes for determining the lamp beads can be intercepted to determine the lamp bead combination in the lamp source. For example, the four lamp beads of the lamp source are white, red, green, and basket respectively. The corresponding mapping table of the combination of the four lamp beads is shown in Table 1:

Table 1

Numerical value	combination
00	All lamp beads
01	Red
02	green
03	blue
04	White
05	Red green
06	Red and blue
07	Red and white
08	Green blue
09	Green and white
10	Blue and white
11	RGB

12	Red, green and white
13	Red blue white
14	Green blue white
15	Red blue white

If the byte is 1F, intercept the low-order F. If the total number of combinations is less than F, then F and the total number will be the remainder, and the obtained remainder will be found in the mapping table for the corresponding lamp bead. Of course, in other embodiments, the bytes used to determine the lamp bead may not be intercepted, and the remainder is directly calculated with the number of lamp bead combinations, and the corresponding lamp bead combination is found in the mapping table after the remainder is obtained. In addition, it should be noted that if there is only one lamp bead in the light source, there is only one combination. No matter what the value of the byte is, the final result will only be 00.

The last byte of the remaining two bytes is used to determine the working mode of the light source. The mapping table of the working mode of this embodiment is listed in Table 2.

Table 2

If the byte is 7C, the low-order C is intercepted, and C exceeds 5, then the remainder of C and the total number 5 is 2, which is 02 in hexadecimal, which corresponds to the flash working mode. Of course, in other embodiments, it is not necessary to perform interception for determining the working mode, but directly calculate the remainder with the number of working modes, and then query the mapping table to determine the working mode after obtaining the remainder. Therefore, if the four bytes of randomly sampled data are C10F1F7C, after the above operation, the control string is "10F0502", which represents the fast flashing of the traffic light bead of the 271st light source.

In step S1, if the received data is designated data, the control character string needs to be determined from the designated data. The designated data is generally input by the user on the man-machine interface. For example, if the input is used: the designated content displayed is a five-pointed star, red, and constant light, then the designated data includes a five-pointed star, red, and constant light. The specified data contains the specified content, you need to find the lamp source address collection corresponding to the specified content in the stored specific pattern mapping table. The specific pattern mapping table can contain, for example, all English letters, daily language fonts, common patterns, etc., to meet the regular use needs of users. The "red" in the specified data is queried in Table 1 and the corresponding is "01", and the constant light is queried in Table 2 and the corresponding is "01", so the multiple control strings obtained are "light source address X +01+01", the lamp source address X needs to traverse the collection of lamp source addresses. When there are multiple control strings, a separator string (such as EEFF) should be inserted between the control strings. When executing, the light source knows that the subsequent control strings also need to be executed, so as to avoid control interruption.

In other embodiments, the designated data received in step S1 is a set default command string, and the designated data is directly used as the control string. Table 3 is an example of a mapping table between default command strings and control functions.

table 3

Numerical value	Lamp beads	Function	Numerical value	Lamp beads	Function
CD00	All lamp beads	Extinguish	CD40	Green blue	Extinguish
CD01	All lamp beads	Chang Liang	CD41	Green blue	Chang Liang
CD02	All lamp beads	Flash	CD42	Green blue	Flash
CD03	All lamp beads	Slow flashing	CD43	Green blue	Slow flashing
CD04	All lamp beads	Intermittent light and dark (breathing mode)	CD44	Green blue	Intermittent light and dark (breathing mode)
CD05	Red	Extinguish	CD45	Green and white	Extinguish
CD06	Red	Chang Liang	CD46	Green and white	Chang Liang
CD07	Red	Flash	CD47	Green and white	Flash

CD08	Red	Slow flashing	CD48	Green and white	Slow flashing
CD09	Red	Intermittent light and dark (breathing mode)	CD49	Green and white	Intermittent light and dark (breathing mode)
CD10	green	Extinguish	CD50	Blue and white	Extinguish
CD11	green	Chang Liang	CD51	Blue and white	Chang Liang
CD12	green	Flash	CD52	Blue and white	Flash
CD13	green	Slow flashing	CD53	Blue and white	Slow flashing
CD14	green	Intermittent light and dark (breathing mode)	CD54	Blue and white	Intermittent light and dark (breathing mode)
CD15	blue	Extinguish	CD55	RGB	Extinguish
CD16	blue	Chang Liang	CD56	RGB	Chang Liang
CD17	blue	Flash	CD57	RGB	Flash
CD18	blue	Slow flashing	CD58	RGB	Slow flashing
CD19	blue	Intermittent light and dark (breathing mode)	CD59	RGB	Intermittent light and dark (breathing mode)
CD20	White	Extinguish	CD60	Red, green and white	Extinguish
CD21	White	Chang Liang	CD61	Red, green and white	Chang Liang
CD22	White	Flash	CD62	Red, green and white	Flash
CD23	White	Slow flashing	CD63	Red, green and white	Slow flashing
CD24	White	Intermittent light and dark (breathing mode)	CD64	Red, green and white	Intermittent light and dark (breathing mode)
CD25	Red green	Extinguish	CD65	Red blue white	Extinguish
CD26	Red green	Chang Liang	CD66	Red blue white	Chang Liang
CD27	Red green	Flash	CD67	Red blue white	Flash
CD28	Red green	Slow flashing	CD68	Red blue white	Slow flashing
CD29	Red green	Intermittent light and dark (breathing mode)	CD69	Red blue white	Intermittent light and dark (breathing mode)
CD30	Red and blue	Extinguish	CD70	Green blue white	Extinguish

CD31	Red and blue	Chang Liang	CD71	Green blue white	Chang Liang
CD32	Red and blue	Flash	CD72	Green blue white	Flash
CD33	Red and blue	Slow flashing	CD73	Green blue white	Slow flashing
CD34	Red and blue	Intermittent light and dark (breathing mode)	CD74	Green blue white	Intermittent light and dark (breathing mode)
CD35	Red and white	Extinguish	CD75	Red blue white	Extinguish
CD36	Red and white	Chang Liang	CD76	Red blue white	Chang Liang
CD37	Red and white	Flash	CD77	Red blue white	Flash
CD38	Red and white	Slow flashing	CD78	Red blue white	Slow flashing
CD39	Red and white	Intermittent light and dark (breathing mode)	CD79	Red blue white	Intermittent light and dark (breathing mode)

In step S2, the head character string, the control character string, and the end character string are required to form a complete control instruction. The head character string plays a role in identification. When the light source main control unit reads the head character string, it indicates that the control instruction is started, and the main control unit needs to start to control according to the control character string. If the light source main control unit does not read the head string, it does not start to work, so as to avoid false triggering. The end character string indicates that the control instruction is received. When the light source main control unit reads the end character string, it will keep the working mode contained in the previous control instruction and wait for the arrival of the next head character string.

As an example, the head string is "AF68CE07", the end string is "5E5F", the control string is "010F0502", and the control command is "AF68CE07010F05025E5F". The realized control function is to enable the 271st light source The traffic light bead flashes quickly. If the blue light bead of the 3088th light source is also required to be constantly on, the control string "0C100301" and the separator string "EEFF" should also be added, and the control command becomes "AF68CE07010F0502EEFF0C1003015E5F".

As another example, the control string is "006A+02+01" and "0FA8+10+02", the lamp bead bytes are 02 and 10, the working mode bytes are 01 and 02, and the delimiting string is " EEFF", the control command obtained is "AF68CE07006A0201EEFF0FA810025E5F", the realized control function is to make the green lamp bead in the 106th light source always on, and then the blue and white lamp bead in the 4008th light source flashes quickly.

Step S3 is to load the obtained control command into the power line through the carrier modulator and send it to the lamp source for execution. When faced with the situation of controlling multiple light strings, there are multiple ways to obtain control instructions. If the same main processor controls multiple light strings at the same time, different light strings can be assigned to different corresponding head strings, so that the control commands issued by the main processor can be received by all light strings, but only the correct correspondence The string of lights will execute the control command. In addition, the main processor and the sub-processors can also work together. The main processor first allocates random sampled data or specified data to the sub-processors on the light string, and the sub-processors are combined to control the corresponding light string. The control instruction is issued and executed.

In an exemplary embodiment of the present invention, an electronic billboard is provided. This electronic billboard is a light string matrix composed of at least one light string. In implementation, the larger the size of the electronic billboard, the more light strings will be required. The light string matrix of the electronic billboard adopts the aforementioned method of controlling the light string. There is a font library module in the electronic billboard. The font library module is a data mapping library that can contain a collection of lamp source addresses corresponding to English letters, daily language fonts, common patterns, etc., that is, as long as you know the content you want to query You can know the collection of corresponding lamp source addresses. For example, when using an electronic billboard, if you want to display the flashing "S", then search for the collection of light source addresses corresponding to the letter S in the font module, and then use the aforementioned steps S1-S3 to make all the lights in the collection The sources are all lit and flashing, and the electronic billboard can display a flashing "S". In the same way, other words or symbols or even pictures are displayed on the electronic billboard in this way. The content of the font module can be set at the factory, and the user can add more new mappings to the font module during subsequent use, so that it can display more diversified contents.

In addition, in an exemplary embodiment of the present invention, there is also provided an electronic device capable of implementing the above method for controlling a light string by a power carrier. Those skilled in the art can understand that various aspects of the present invention can be implemented as a system, a method, or a program product. Therefore, various aspects of the present invention can be specifically implemented in the following forms, that is, an embodiment of a combination of hardware and software aspects, which can be collectively referred to herein as "circuits", "modules" or "systems." The components of the electronic device may include, but are not limited to: at least one processor, the aforementioned at least one memory, a bus connecting different system components (including a memory and a processor), and a display unit.

Wherein, the memory stores program code, and the program code can be executed by the processor, so that the processor executes the steps according to various exemplary embodiments of the present invention described in the foregoing specific implementation section of this specification. The memory may include a readable medium in the form of a volatile storage unit, such as a random access storage unit (RAM) and/or a cache storage unit, and may further include a read-only storage unit (ROM).

The memory may also include a program/utility tool having a set of (at least one) program modules. Such program modules include but are not limited to: an operating system, one or more application programs, other program modules, and program data. Each of these examples One or some combination may include the realization of the network environment.

The bus may represent one or more of several types of bus structures, including a memory bus or a storage controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any bus structure among multiple bus structures.

The electronic device can also communicate with one or more external devices (such as keyboards, pointing devices, Bluetooth devices, etc.), and can also communicate with one or more devices that enable the user to interact with the electronic device, and/or communicate with the electronic device. A device can communicate with any device (such as a router, modem, etc.) that can communicate with one or more other computing devices. This communication can be carried out through an input/output (I/O) interface. In addition, the electronic device can also communicate with one or more networks (for example, a local area network (LAN), a wide area network (WAN), and/or a public network, such as the Internet) through a network adapter. As shown in the figure, the network adapter communicates with other modules of the electronic device through the bus. Other hardware and/or software modules can be used in conjunction with electronic devices, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

Through the description of the above embodiments, those skilled in the art can easily understand that the exemplary embodiments described here can be implemented by software, or can be implemented by combining software with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, U disk, mobile hard disk, etc.) or on the network , Including several instructions to make a computing device (which may be a personal computer, a server, a terminal device, or a network device, etc.) execute the method according to the embodiment of the present disclosure.

In addition, in an exemplary embodiment of the present invention, a computer-readable storage medium is also provided, on which is stored a program product capable of realizing the above-mentioned power carrier control light string method in this specification. In some possible embodiments, various aspects of the present invention can also be implemented in the form of a program product, which includes program code. When the program product runs on a terminal device, the program code is used to make the terminal device execute the above-mentioned instructions in this specification. The steps according to various exemplary embodiments of the present invention are described in the detailed description section.

A program product for implementing the above method according to an embodiment of the present invention is described, which can adopt a portable compact disk read-only memory (CD-ROM) and include program code, and can run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited to this. In this document, the readable storage medium can be any tangible medium that contains or stores a program, and the program can be used by or combined with an instruction execution system, device, or device.

The program product can adopt any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or a combination of any of the above. More specific examples (non-exhaustive list) of readable storage media include: electrical connections with one or more wires, portable disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable Type programmable read only memory (EPROM or flash memory), optical fiber, portable compact disk read only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above.

The computer-readable signal medium may include a data signal propagated in baseband or as a part of a carrier wave, and readable program code is carried therein. This propagated data signal can take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing. The readable signal medium may also be any readable medium other than a readable storage medium, and the readable medium may send, propagate, or transmit a program for use by or in combination with the instruction execution system, apparatus, or device.

The program code contained on the readable medium can be transmitted by any suitable medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination of the above.

The program code used to perform the operations of the present invention can be written in any combination of one or more programming languages. Programming languages include object-oriented programming languages—such as Java, C++, etc., as well as conventional procedural programming. Language-such as "C" language or similar programming language. The program code can be executed entirely on the user's computing device, partly on the user's device, executed as an independent software package, partly on the user's computing device and partly executed on the remote computing device, or entirely on the remote computing device or server Executed on. In the case of a remote computing device, the remote computing device can be connected to a user computing device through any kind of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computing device (for example, using Internet service providers). Business to connect via the Internet).

Those skilled in the art will easily think of other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptive changes of the present disclosure. These variations, uses, or adaptive changes follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field that are not disclosed in the present disclosure. . The description and the embodiments are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the claims.

It should be understood that the present disclosure is not limited to the precise structure that has been described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Industrial applicability:

Compared with the prior art, the present invention has the beneficial effects that the control string and control instructions are formed by randomly sampling data or designated data, and the lamp beads of the light string can be controlled one by one according to specific needs, and the random sampling data can also be controlled randomly. The work of the lamp string lamp beads not only meets the diversified needs, but also can follow the random sampling data to produce more random effects, and the functionality is better. At the same time, it also uses the power line carrier transmission control command, only the power supply and the ground are required. No additional special wire harness for address positioning is required, which simplifies the transmission structure and is easy to mass produce.

Claims (12)

1. A method for controlling a light string by a power carrier, characterized in that it is used to control a light string connected in series via a power line, the light string is provided with a plurality of light sources, and the light source includes a main control unit and at least one lamp bead, The method includes the following steps:

   Obtain the lamp source address, lamp beads and display mode to be controlled through the received random sampling data or specified data to form a control string;

   Combine the head character string, control character string, and end character string to form a control instruction;

   Load the control command into the power line and send it to the light source for execution.
2. The method for controlling a light string by a power carrier as claimed in claim 1, wherein the random sampling data is obtained by sequentially sampling the data stream at a set frequency.
3. The method of power carrier control light string according to claim 2, characterized in that 4 bytes of hexadecimal data are collected every time the data stream is sampled, two of which are used to determine the light source Address, one of the remaining bytes is used to determine the lamp bead in the light source, and the last byte is used to determine the working mode of the light source.
4. The method of power carrier control light string according to claim 2, characterized in that 4 bytes of hexadecimal data are collected every time the data stream is sampled, and the two bytes are combined into a four-digit decimal. The hexadecimal number and three hexadecimal digits are used to determine the address of the lamp source; the two hexadecimal digits of the remaining one byte are intercepted to determine the lamp beads in the lamp source The two-digit hexadecimal number of the last byte is intercepted from one of them to determine the working mode of the light source.
5. The method of power carrier control light string according to claim 2, characterized in that 4 bytes of hexadecimal data are collected every time the data stream is sampled, and the two bytes are combined into a four-digit decimal. The hexadecimal number calculates the remainder of the number of light sources to obtain the address of the light source; the remaining one byte of the two hexadecimal number calculates the remainder of the number of lamp beads in the light source to determine the lamp beads; finally A byte of two hexadecimal numbers calculates the remainder of the number of working modes of the light source to determine the working mode of the light source.
6. The method of power carrier control light string according to claim 1, characterized in that, if designated data is received and the designated data includes designated content to be displayed, then a collection of lamp source addresses corresponding to the designated content is queried , Combine the specified data and the queried lamp source address into a control string.
7. The method for controlling a light string by a power carrier according to claim 1, wherein if the designated data is received and the designated data is a set default command string, the designated data is directly used as the control string.
8. The method for controlling a light string by a power carrier according to claim 1, wherein when the control string is composed of more than one control string, a separator string is inserted between the control strings.
9. An electronic billboard, characterized in that it adopts the power carrier control method of light strings according to any one of claims 1-8, and the electronic billboard is a light string matrix composed of at least one light string.
10. The electronic billboard according to claim 9, characterized in that the electronic billboard is provided with a font library module, if the designated data is received and the designated data includes the designated content to be displayed, then the font module is Query and retrieve a collection of lamp source addresses corresponding to the specified content.
11. An electronic device, characterized in that it comprises:

    Processor; and

    A memory on which computer-readable instructions are stored, and when the computer-readable instructions are executed by the processor, the method according to any one of claims 1 to 8 is implemented.
12. A computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the method according to any one of claims 1 to 8 is realized.

Images