CN111586917B - LED lamp string system and control method thereof - Google Patents
LED lamp string system and control method thereof Download PDFInfo
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- CN111586917B CN111586917B CN202010581737.2A CN202010581737A CN111586917B CN 111586917 B CN111586917 B CN 111586917B CN 202010581737 A CN202010581737 A CN 202010581737A CN 111586917 B CN111586917 B CN 111586917B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/155—Coordinated control of two or more light sources
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/165—Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/19—Controlling the light source by remote control via wireless transmission
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention provides an LED lamp string system and a control method thereof, belonging to the technical field of photoelectricity. The LED lamp string cooperative control system solves the problems of efficiency and stability of the conventional LED lamp string cooperative control. The LED lamp string system comprises a plurality of power controllers, each power controller is connected with a group of LED lamp strings, each power controller is provided with a wireless transceiver module and a unique physical address, and the method comprises the following steps: the method comprises the steps of information source broadcasting, rebroadcasting, broadcast packet transmission and addressing cooperative control, wherein in the rebroadcasting step, each power controller receiving a broadcast packet retransmits the broadcast packet once again in a broadcast mode within set time; in the broadcast packet transmission step, all power controllers which forward the broadcast packet are used as new information sources, and the information source broadcasting step and the rebroadcasting step are repeated, so that the broadcast packet is transmitted region by region until the broadcast packet is received. The control method of the LED lamp string system improves the control efficiency and ensures the stability.
Description
Technical Field
The invention belongs to the field of photoelectric technology, relates to a decorative LED lamp string, and particularly relates to an LED lamp string system for controlling a plurality of LED lamp strings by using a multi-power controller and a control method thereof.
Background
The LED lamp string is generally used for street view, buildings or indoor decoration, LED lamp beads of the LED lamp string on the market are generally connected in series or in parallel to form the LED lamp string, the LED lamp string is connected to a power supply controller, and the power supply controller controls the LED lamp string to carry out on-off control. The LED lamp string can realize dynamic flashing display of flowing water, patterns and the like, can realize point control on a single lamp bead, is structurally characterized in that address codes are arranged on the LED lamp beads, the addressable programming function is added in the power supply controller, and various dynamic effects are controlled through programming, so that the LED lamp string is convenient to use.
However, the dynamic display effect of the existing LED light strings is realized by one controller, that is, when the LED light string decoration scene is performed at a large distance, each LED light string realizes dynamic control according to the respective set programming, the dynamic connection between the LED light strings needs manual setting, and the programming in the power controllers of the two LED light strings is generally adjusted through field observation and experience, so that a passerby cannot obviously perceive the dynamic effect connection of the two LED light strings.
Aiming at the problem, a MESH control method is proposed to solve the problem, and a scheme worth referencing is a configuration method of network configuration parameters of a MESH network node with Chinese patent publication No. CN108260147A, wherein a handshake connection is established between a mobile terminal APP and one LED lamp, then the LED lamp sends a broadcast message carrying the MAC address of the LED lamp to other LED lamps in a MESH network area, and the MAC address of the LED lamp with a characteristic value is determined from the MAC address of the LED lamp and the received MAC address according to rules; judging whether the MAC address of the current LED lamp is consistent with the MAC address of the LED lamp with the characteristic value or not, and if so, judging that the current LED lamp is a master proxy node; and under the condition that the current LED lamp is the master proxy node, sending the configuration message which is received by the current LED lamp and carries the network configuration parameter information to the slave nodes in the mesh network area. According to the method, as long as one LED lamp is successfully connected with the mobile terminal APP, the rest LED lamps are quickly and accurately added into the mesh network.
The MESH control method is relatively stable and reliable, and the reason is that a point-to-point handshake connection needs to be established before the network configuration parameter message is transmitted, that is, a relatively time-consuming handshake connection needs to be established before the message is transmitted, and the handshake connection between the master proxy node and the slave proxy node is reestablished after the point-to-point handshake connection is released.
Disclosure of Invention
The invention aims to provide an LED lamp string system with a multi-power controller and a control method thereof aiming at the problems in the prior art, and the technical problems are solved as follows: how to ensure stability while improving control efficiency.
The purpose of the invention can be realized by the following technical scheme: a control method of an LED light string system comprises a plurality of power controllers, each power controller is connected with a group of LED light strings, each power controller is provided with a wireless transceiver module and a unique physical address, and the method is characterized by comprising the following steps:
and an information source broadcasting step: all power controllers in the source broadcasting range receive the broadcasting packets sent by the source and store the broadcasting packets in respective buffers;
and a re-broadcasting step: each power controller receiving the broadcast packet forwards the broadcast packet once again in a broadcast form within a set time;
a broadcast packet transmission step: repeating the source broadcasting step and the rebroadcasting step by taking all power controllers for forwarding the broadcasting packet as new information sources, so that the broadcasting packet is transmitted region by region until all the power controllers in the LED lamp string system receive the broadcasting packet;
and an addressing cooperative control step: and all the power controllers receiving the broadcast packets read the broadcast packets in the respective buffer for addressing operation, and the power controllers with the target addresses matched with the physical addresses in all the broadcast packets analyze the broadcast packets and control the on and off of the LED lamp strings according to the configuration parameter messages in the broadcast packets.
The information source can be a mobile terminal with a wireless transmitting function such as a mobile phone, a broadcasting packet is sent from the information source, the broadcasting packet contains configuration parameter information for controlling the LED lamp string to be on or off, and in the process of transmitting the broadcasting packet to each power controller, the method adopts connectionless transmission of the broadcasting packet, saves the process of establishing connection before transmission, and judges whether to forward the received broadcasting packet or not by taking time as a condition after receiving the broadcasting packet. In the forwarding process, all power controllers which receive the broadcast packet for the first time meet the time setting requirement and become new information sources, and the forwarding is performed once, so that the broadcast packet is repeated for multiple times in a very short time, and the coverage range is the broadcast coverage range of all the new information sources. Because the broadcast packet transmission is repeated in the area range for many times, the power controller which does not receive the broadcast packet due to interference in the previous coverage area can also receive the broadcast packet for many times in the same coverage area or receive the broadcast packet for many times in the next coverage area, stable transmission can be ensured under the condition that connection does not need to be established, and the connectionless transmission efficiency is high.
In the control method of the LED lamp string system, in the rebroadcasting step, each power controller receiving the broadcast packet takes the broadcast packet in the buffer and the broadcast packet which receives the broadcast packet last time as the latest two broadcast packets, the receiving time interval value of the two broadcast packets is firstly calculated, and when the receiving time interval value is smaller than the preset time value and the two broadcast packets are the same, the power controller stops processing; when the receiving time interval value is larger than or equal to the preset time value, or when the receiving time interval value is smaller than the preset time value and the two broadcast packets are different, the power supply controller forwards the broadcast packet again in a broadcast mode, wherein the preset time value is 0.4-0.6 second. The power controller only forwards the same broadcast packet once through the operation of whether the time is the same as the broadcast packet, different identical broadcast packets only take the time as a forwarding condition, and the preset time of the two broadcast packets is set to be 0.4-0.6 second, so that the receiving efficiency can be improved, and any two different commands can be received without waiting.
In the control method of the LED light string system, the physical address of the power controller is a multi-layer nested address, part of high section addresses of the multi-layer nested address are used for addressing of the power controller group, and the complete multi-layer nested address is used for addressing of a single power controller. Through addressing of the power controller group, the power controller meeting the requirements can realize the cooperative control of the multiple LED lamp strings through the configuration parameter message in one broadcast packet, and realize the overall display effect of the multiple LED lamp strings, such as the running water effect. The complete multilayer nested address is used for addressing of a single power controller to realize point control of the LED lamp strings in a single string, so that point control of the single LED lamp string is contained in the broadcast packet configuration parameter message on the basis of addressing of the power controller group, and various dynamic patterns can be realized. Compared with the existing scheme, the method has higher expandability.
In the control method of the LED light string system, the broadcast packet comprises an identification flag bit, a target address, a function instruction and an LED light string control instruction, in the step of addressing cooperative control, the target address in the broadcast packet is a partial high-section address of a multilayer nested address or a complete multilayer nested address, and when the target address in the broadcast packet is the partial high-section address of the multilayer nested address, all power controllers meeting the address matching requirement form a virtual group power controller. The power controllers meet the address addressing requirement and execute the same broadcast packet, a virtual group power controller is formed by the power controllers, and the LED lamp strings on the virtual group power controller are cooperatively controlled by the virtual group power controller.
In the control method of the LED lamp string system, in the addressing cooperative control step, each power controller in the virtual group power controller respectively executes a function instruction and an LED lamp string control instruction in a broadcast packet, and each power controller executes counting cycle operation within a set time, the power controller which firstly completes the counting cycle operation in the virtual group power controller is reset to zero and restarts the cycle operation, and simultaneously, a zero clearing synchronous configuration parameter message is sent, and the remaining power controllers of the virtual group power controller receive the zero clearing synchronous configuration parameter message and execute zero clearing reset to restart the cycle operation. In this way, each power controller in the virtual group controller keeps synchronous, and the stability of the LED string light display is improved.
An LED light string system with multiple power controllers comprises multiple power controllers, each power controller is connected with a group of LED light strings, each power controller is provided with a wireless transceiver module and a unique physical address,
the single power controller is used for receiving the broadcast packet, storing the broadcast packet in respective buffers, and forwarding the broadcast packet once again in a broadcast form within a set time;
the power controllers are used for broadcasting packet region transmission and addressing cooperative control, and when broadcasting is transmitted, all the power controllers which forward the broadcasting packet are used as new information sources for re-broadcasting, so that the broadcasting packet is transmitted region by region until all the power controllers in the LED lamp string system receive the broadcasting packet; and when addressing cooperative control is carried out, all power controllers receiving the broadcast packets read the broadcast packets in respective buffers to carry out addressing operation, the power controllers with the target addresses matched with the physical addresses in all the broadcast packets analyze the broadcast packets, and the LED lamp strings are controlled to be turned on or turned off according to configuration parameter messages in the broadcast packets.
The broadcast packet is transmitted without connection, so that different broadcast packets can be received quickly, the efficiency is improved, a plurality of power controllers are adopted to form a regional transmission broadcast packet, the broadcast packet is repeatedly received in a region for many times, each power controller can receive the broadcast packet, the stability is improved, all the power controllers meeting the addressing requirement process the same broadcast packet, cooperative control is formed, and the extension is facilitated.
In the LED light string system with multiple power controllers, the physical addresses are multiple layers of nested addresses, and the power controllers with the same partial physical addresses form a virtual group controller, and the virtual group controller has a zero clearing synchronization unit for each power controller to perform counting cycle operation within a set time, and the zero clearing synchronization unit includes a timer for timing and a counter for calculating cycle number.
In the LED light string system with the multiple power controllers, the power controller includes a power management unit and a main control unit, the power management unit is connected with the LED light string, and the power management unit, the wireless transceiver module, the buffer and the memory are all connected with the main control unit.
In the LED light string system with the multiple power controllers, the wireless transceiver module transmits and receives 2.4G frequency band signals.
Compared with the prior art, the LED lamp string system and the control method thereof have the following advantages:
1. the method adopts connectionless transmission of the broadcast packet, saves the process of establishing connection before transmission, improves the efficiency, ensures that any two different control commands can be received without omission, ensures that a user has smooth experience during operation, realizes repeated transmission of the broadcast packet for many times through a regional transmission mode, ensures that a power supply controller which does not receive the broadcast packet due to interference in the previous coverage area can receive the broadcast packet for many times in the same coverage area or receive the broadcast packet for many times in the next coverage area, and can also ensure stable transmission without establishing connection.
2. The physical address of the power supply controller is a multilayer nested address, can realize the addressing of a plurality of power supply control groups, can also realize the addressing of a single power supply controller, and has better expandability and the combined programming design of new dynamic patterns.
3. The virtual group controller formed by group addressing keeps each power controller in the virtual group power controllers synchronous in a zero clearing synchronous mode, and improves the stability of LED lamp string display.
Drawings
FIG. 1 is a schematic diagram of a single LED light string.
FIG. 2 is an LED light string system with a multiple power controller.
Fig. 3-6 are dynamic diagrams of the regional delivery of broadcast packets in an LED light string system.
Fig. 7 is a control flow diagram of the present method.
In the figure, 1, a power supply controller; 11. a main control unit; 12. a wireless transceiver module; 13. a buffer; 14. a memory; 15. a power management unit; 2. an LED light string.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1, the single LED light string includes a power supply controller 1 and an LED light string 2, a main control unit 11 is disposed in the power supply controller 1, a wireless transceiver module 12 connected to the main control unit 11, a buffer 13 and a memory 14, and the memory 14 is used for storing a unique physical address of the power supply controller 1. The circuit connected with the control unit is also provided with a power supply management unit 15, the LED lamp string 2 is connected to the output end of the power supply management unit 15, and the main control unit 11 controls the power supply management unit 15 to realize the flicker control of the LED lamp string 2. The LED lamp string 2 can be LED lamp beads connected in series or LED lamp beads connected in parallel. The wireless transceiver module 12 is configured to receive broadcast packets with the same identification code, store the broadcast packets in the buffer 13 under the control of the main control unit 11, read the physical address code in the memory 14 into the buffer 13, and compare the target address of the broadcast packet with the physical address code to determine whether the broadcast packet is the same address. Meanwhile, the program in the memory 14 includes a timer and a counter, and timing control and counting control can be performed.
As shown in fig. 2, the LED light strings are arranged at certain intervals to form an LED light string system with a multi-power controller 1, for example, a plurality of LED light strings are arranged on trees at two sides of a street, or arranged on four vertical faces of a building. The single LED lamp string of the LED lamp string system can be expanded and combined at will according to the use requirement, and can also be arranged at will. After the space arrangement is completed, a unique physical address is input into each power supply controller 1, and for convenience of input, the physical address can be input through the wireless transceiver module 12 by using a handheld device, or an input interface can be set in the power supply controller 1 or input according to a built-in program through a button.
The control method of the LED lamp string system comprises the following steps:
as shown in fig. 3 and 7, a handheld device such as a mobile phone is used as a signal source 3, a broadcast packet is transmitted through a wireless transmission module of the signal source, and a part of a power supply controller 1 in an LED light string system is within a broadcast range of the signal source; the broadcast packet comprises an identification flag bit, a target address, a function instruction and an LED lamp string control instruction.
And information source broadcasting step: the wireless transceiving modules 12 of all the power controllers 1 in the source broadcasting range receive the broadcasting packets which are sent by the source and accord with the identification flag bits, and store the broadcasting packets in respective buffers 13; the power controller 1 outside the source broadcasting range is in a standby state. Under the extremely small working condition, because of the existence of factors such as interference, the power controller 1 which can not correctly receive the broadcast packet of all the power controller 1 parts is also in the standby state;
and a broadcasting step again: each power controller 1 receiving the broadcast packet retransmits the broadcast packet once again in a broadcast form within a set time; specifically, each power controller 1 receiving the broadcast packet takes the broadcast packet in the buffer 13 and the previous broadcast packet receiving the broadcast packet as the latest two broadcast packets, and when the power controller 1 receiving the broadcast packet receives the broadcast packet for the first time, the interval time is greater than or equal to the preset time value of 0.5 second, and the power controller 1 retransmits the broadcast packet in a broadcast mode again. As shown in fig. 4, because there are a plurality of power controllers 1 covered by the source broadcast range, for example, there are 4 power controllers 1 in the figure, these power controllers 1 all forward broadcast packets to form new source, and these power controllers 1 are distributed in a dispersed manner, so that the broadcast coverage formed by these new sources is enlarged, and can cover the original power controllers 1 and also cover part of the standby power controllers 1, and at the same time, the power controllers 1 in the coverage are all forwarded, so that the broadcast packets are repeatedly sent many times, the original power controllers 1 that have received the broadcast packets receive the broadcast packets again, but the original power controllers 1 will take the broadcast packets in the buffer 13 and the broadcast packets that have received the broadcast packets before as the latest two broadcast packets, calculate the receiving time interval values of the two broadcast packets first, and when the receiving time interval value is less than the preset time value of 0.5 seconds and the two broadcast packets are the same, the power controllers 1 stop processing, so that 4 original power controllers 1 in fig. 4 are not forwarding broadcast packets, but the standby power controllers 1 in the new source coverage become new source; a broadcast packet transmission step: as shown in fig. 5 and fig. 6, all the power controllers 1 forwarding the broadcast packet are used as new information sources, and the above-mentioned information source broadcasting step and re-broadcasting step are repeated, so that the broadcast packet is transmitted region by region until all the power controllers 1 in the LED light string system receive the broadcast packet.
When the handheld device sends the second broadcast packet, the previous broadcast packet is still transmitted, and the power controller 1 receiving the second broadcast packet forwards the second broadcast packet when the receiving time interval value of the two broadcast packets before and after is greater than or equal to the preset time value of 0.5 second or when the receiving time interval value is less than the preset time value of 0.5 second and the two broadcast packets are different, so that the efficiency is improved and the user has better operation experience. The preset time value may be set to 0.4 seconds or 0.6 seconds as necessary.
And an addressing cooperative control step: all the power controllers 1 receiving the broadcast packets read the broadcast packets in the respective buffers 13 for addressing operation, and the power controllers 1 with the target addresses matched with the physical addresses in all the broadcast packets analyze the broadcast packets and control the on and off of the LED lamp strings according to the configuration parameter messages in the broadcast packets.
As shown in fig. 2, the physical address of the power controller 1 is a multi-layer nested address, part of the high segment address of the multi-layer nested address is used for addressing the group of the power controllers 1, and the complete multi-layer nested address is used for addressing a single power controller 1. For example, in the figure, the numerical value in the power controller 1 represents a physical address code, 01 represents a partial high-segment address of a multilayer nested address, and addresses the partial high-segment address 01, four power controllers 1 of 0101, 0102, 0103, and 0104 may meet requirements, and through addressing of the power controller 1 group, the power controller 1 meeting the requirements can realize the multi-LED light string cooperative control through configuration parameter messages in one broadcast packet, so as to realize the overall display effect of the multi-LED light string, such as the flow effect. Addressing the complete multi-layer nested address 0902 enables accurate selection of the power controller 1 for which the address corresponds. Therefore, on the basis of addressing of the power controller 1 group, the point control on the single LED lamp string is contained in the broadcast packet configuration parameter message, various dynamic patterns can be realized, and the expandability is higher.
The four power controllers 1 meeting the addressing requirement are treated as a whole to form a virtual group power controller 1, each power controller 1 in the virtual group power controller 1 respectively executes a function instruction and an LED lamp string control instruction in a broadcast packet, each power controller 1 executes counting cycle operation within set time, the power controller 1 which firstly completes the counting cycle operation in the virtual group power controller 1 is cleared and reset and restarts the cycle operation, meanwhile, a clear synchronization configuration parameter message is sent, and the rest power controllers 1 of the virtual group power controller 1 receive the clear synchronization configuration parameter message and execute clear reset and restart the cycle operation. In this way, each power controller 1 in the virtual group controller keeps synchronization, and the stability of the LED string light display is improved.
For example, the pipeline control is performed, the requirement on the synchronization is higher, parameter configuration is performed in a broadcast packet, the pipeline control is performed on four power controllers 1 of 0101, 0102, 0103 and 0104, the four power controllers 1 form a virtual group power controller 1, and the four power controllers 1 respectively execute a function instruction and an LED light string control instruction in the broadcast packet, that is, timers of the four power controllers 1 respectively perform timing for 5 minutes, meanwhile, a counter in the power controller 1 performs counting, the count value is compared with a low-order value of a physical address, that is, when the count value is 1, the low-order bits of the address of the 0101 power controller 1 are the same, the 0101 power controller 1 emits light, the rest power controllers 1 do not emit light, and by analogy, when the count value is 2, the 0101 power controller 1 emits light, and the rest power controllers 1 do not emit light. Within 5 minutes of the four timers respectively counting, because the crystal oscillator frequency has deviation, the four timers have deviation in speed, each counter has deviation, and the sequential light-emitting control is difficult to realize, but when each counter respectively counts to the maximum value, when the running water cycle is completed, the power controller 1 which firstly completes the counting cycle operation is reset to zero and restarts the cycle operation, and simultaneously, the zero-clearing synchronous configuration parameter message is sent, and the rest power controllers 1 of the virtual group power controller 1 receive the zero-clearing synchronous configuration parameter message and execute the zero-clearing reset to restart the cycle operation. In this way, the virtual group power controller 1 can normally implement the pipeline mode.
An LED lamp string system with a multi-power controller 1 comprises the multi-power controller 1, wherein each power controller 1 is connected with a group of LED lamp strings, each power controller 1 comprises a power management unit 15 and a main control unit 11, the power management unit 15 is connected with the LED lamp strings, the power management unit 15, a wireless receiving and transmitting module 12 capable of sending and receiving 2.4G frequency band signals, a buffer 13 and a memory 14 are connected with the main control unit 11, the memory 14 stores a multilayer nested unique physical address, and the power controllers 1 are used for receiving broadcast packets, storing the broadcast packets in the respective buffers 13 and transmitting the broadcast packets once again in a broadcast mode within set time.
The power controllers 1 are used for area transmission and addressing cooperative control of a broadcast packet, and during broadcast transmission, all the power controllers 1 which forward the broadcast packet are used as new information sources for re-broadcasting so that the broadcast packet is transmitted area by area until all the power controllers 1 in the LED lamp string system receive the broadcast packet; during the addressing cooperative control, all the power controllers 1 receiving the broadcast packet read the broadcast packet in the respective buffer 13 to perform the addressing operation, and the power controllers 1 with the target addresses matched with the physical addresses in all the broadcast packets analyze the broadcast packet and perform the on-off control on the LED lamp string according to the configuration parameter information in the broadcast packet.
The power supply controllers 1 with the same part of physical addresses form a virtual group controller, a zero clearing synchronization unit for executing counting cycle operation by each power supply controller 1 in a set time is arranged in the virtual group controller, and the zero clearing synchronization unit comprises a timer for timing and a counter for calculating cycle number.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (9)
1. A control method of an LED light string system comprises a plurality of power controllers (1), each power controller (1) is connected with a group of LED light strings (2), each power controller (1) is provided with a wireless transceiving module (12) and a unique physical address, and the method is characterized by comprising the following steps:
and information source broadcasting step: before the information source transmits the broadcast packet, the information source does not establish connection with the power source controller (1), the information source directly sends out the broadcast packet, and all the power source controllers (1) in the information source broadcast range receive the broadcast packet sent out by the information source and store the broadcast packet in respective buffers (13);
and a broadcasting step again: each power controller (1) receiving the broadcast packet retransmits the broadcast packet once again in a broadcast form within a set time;
a broadcast packet transmission step: repeating the source broadcasting step and the rebroadcasting step by taking all the power controllers (1) which forward the broadcasting packet as new sources, so that the broadcasting packet is transmitted region by region until all the power controllers (1) in the LED lamp string system receive the broadcasting packet;
and an addressing cooperative control step: and all the power controllers (1) receiving the broadcast packets read the broadcast packets in respective buffers (13) to perform addressing operation, and the power controllers (1) with the target addresses matched with the physical addresses in all the broadcast packets analyze the broadcast packets and perform on-off control on the LED lamp strings according to configuration parameter messages in the broadcast packets.
2. The method for controlling the LED lamp string system according to claim 1, wherein in the rebroadcasting step, each power controller (1) receiving the broadcast packet takes the broadcast packet in the buffer (13) and the previous broadcast packet of the received broadcast packet as the latest two broadcast packets, the receiving time interval value of the two broadcast packets is calculated first, and when the receiving time interval value is smaller than the preset time value and the two broadcast packets are the same, the power controller (1) stops processing; when the receiving time interval value is larger than or equal to a preset time value, or when the receiving time interval value is smaller than the preset time value and the two broadcast packets are different, the power supply controller (1) forwards the broadcast packet again in a broadcast mode, wherein the preset time value is 0.4-0.6 second.
3. The method for controlling the LED light string system according to claim 1 or 2, wherein the physical address of the power controllers (1) is a multi-layer nested address, a part of high-segment addresses of the multi-layer nested address are used for addressing the power controllers (1) in a group, and the complete multi-layer nested address is used for addressing a single power controller (1).
4. The method for controlling the LED lamp string system according to claim 3, wherein the broadcast packet includes an identification flag bit, a target address, a function command, and an LED lamp string control command, in the step of coordinated addressing control, the target address in the broadcast packet is a partial high-order address of a multi-layer nested address or a complete multi-layer nested address, and when the target address included in the broadcast packet is a partial high-order address of a multi-layer nested address, all power controllers (1) meeting the requirement of address matching constitute a virtual group power controller (1).
5. The LED lamp string system control method according to claim 4, wherein in the addressing cooperative control step, each power controller (1) in the virtual group power controllers (1) respectively executes the function instruction and the LED lamp string control instruction in the broadcast packet, and each power controller (1) executes the counting cycle operation within a set time, the power controller (1) which firstly completes the counting cycle operation in the virtual group power controllers (1) clears and resets the cycle operation and restarts the cycle operation, and simultaneously sends the clear synchronous configuration parameter message, and the remaining power controllers (1) of the virtual group power controllers (1) receive the clear synchronous configuration parameter message and execute the clear reset and restart the cycle operation.
6. An LED lamp string system with multiple power controllers comprises multiple power controllers (1), each power controller (1) is connected with a group of LED lamp strings (2), each power controller (1) is provided with a wireless receiving and transmitting module (12) and a unique physical address, and the LED lamp string system is characterized in that a connection is not established with the power controllers (1) before a broadcast packet is transmitted by an information source, and the information source directly sends out the broadcast packet;
the single power controller (1) is used for receiving the broadcast packets within the range of the source, storing the broadcast packets in the respective buffer (13), and forwarding the broadcast packets once again in a broadcast mode within a set time;
the power controllers (1) are used for broadcast packet regional transmission and addressing cooperative control, and during broadcast transmission, all the power controllers (1) which forward the broadcast packets are used as new information sources for re-broadcasting, so that the broadcast packets are transmitted region by region until all the power controllers (1) in the LED lamp string system receive the broadcast packets; and during addressing cooperative control, all power controllers (1) receiving the broadcast packets read the broadcast packets in respective buffers (13) to perform addressing operation, the power controllers (1) with the target addresses matched with the physical addresses in all the broadcast packets analyze the broadcast packets, and the LED lamp strings are controlled to be on or off according to configuration parameter messages in the broadcast packets.
7. The LED lamp string system with multiple power controllers according to claim 6, wherein the physical addresses are multiple layers of nested addresses, the power controllers (1) with the same part of the physical addresses form a virtual group controller, a zero clearing synchronization unit is arranged in the virtual group controller and used for executing counting cycle operation of each power controller (1) in a set time, and the zero clearing synchronization unit comprises a timer used for timing and a counter used for counting cycle number.
8. The LED lamp string system with multiple power controllers according to claim 6 or 7, wherein the power controller comprises a power management unit and a main control unit, the power management unit is connected with the LED lamp string, and the power management unit, the wireless transceiver module (12), the buffer (13) and the memory are all connected with the main control unit.
9. The LED light string system with multiple power controllers as set forth in claim 8, wherein the wireless transceiver module (12) transmits and receives signals in 2.4G frequency band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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Inventor after: Wang An Inventor after: Mo Rongji Inventor after: Chen Xiaoyong Inventor before: Wang An Inventor before: Mo Rongji Inventor before: Chen Xiaoyong |