Light-emitting control method, controller and light-emitting control system
By acquiring light-emitting control information from a mixed LED string and outputting a composite control signal to a pair of signal lines, the driver chip and the first LED emit light based on the composite control signal. This solves the problem that complex dynamic effects cannot be achieved in the prior art, and simplifies wiring and reduces costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CR TECH PINGTAN CO LTD
- Filing Date
- 2026-01-27
- Publication Date
- 2026-04-28
AI Technical Summary
Existing LED strings can only achieve synchronization effects, not complex dynamic effects, or require additional independent signal lines to achieve complex dynamic effects, resulting in complex wiring and increased costs.
By acquiring light-emitting control information from a mixed LED string, and outputting a composite control signal to a pair of signal lines based on this information, the driver chip and the first LED light emit light based on the composite control signal, achieving asynchronous light-emitting effects. Complex dynamic effects are achieved by outputting a composite control signal through a pair of signal lines.
Complex dynamic effects of hybrid LED light strings are achieved without adding independent signal lines, simplifying wiring and reducing costs.
Smart Images
Figure CN121940907A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of lighting control, and in particular to a light emission control method, controller and light emission control system. Background Technology
[0002] For ordinary electrodeless lamp strings, only a synchronized effect can be achieved at present. It is not possible to achieve complex dynamic effects where some lights are synchronized and others flash in other ways.
[0003] Meanwhile, existing string lights typically require additional signal lines to achieve complex dynamic effects (such as gradient or random flashing effects), which leads to complex wiring and increased costs. Summary of the Invention
[0004] In view of this, embodiments of this application provide a light emission control method, controller, and light emission control system to solve the problem that in the prior art, light strings can only achieve synchronous effects but cannot achieve complex dynamic effects, or that additional independent signal lines are required to achieve complex dynamic effects.
[0005] A first aspect of this application provides a light emission control method applied to a hybrid LED light string. The hybrid LED light string includes at least one first LED and at least one light-emitting unit. Each second LED in the light-emitting unit is electrically connected to a driver chip, and both the first LED and the driver chip are electrically connected to a pair of signal lines. The method includes:
[0006] Obtain light emission control information; the light emission control information is generated based on the dynamic effects that the hybrid LED light string needs to achieve. Based on the light emission control information, a composite control signal is output to a pair of signal lines so that the driver chip controls the second LED to emit light based on the composite control signal, and the first LED emits light based on the composite control signal.
[0007] In one possible implementation, the light emission control information includes polarity change information; Based on the light emission control information, a composite control signal is output to a pair of signal lines, including: Based on polarity change information, one signal line is grounded, and a composite control signal is output to the other signal line.
[0008] In one possible implementation, the light emission control information includes light emission mode information; Based on the light emission control information, a composite control signal is output to a pair of signal lines, so that the driver chip controls the second LED to emit light based on the composite control signal, including: Based on the light emission mode information, a pulse code sequence is inserted into the composite control signal, and the composite control signal with the inserted pulse code sequence is output to a pair of signal lines so that the driver chip can determine the light emission control mode based on the pulse code sequence and control the second LED to emit light based on the light emission control mode.
[0009] In one possible implementation, a pulse-coded sequence is inserted into the composite control signal based on the emission mode information, including: Based on the light emission mode information, determine multiple control codes corresponding to the light emission mode information; Each control code is inserted into the composite control signal according to the predetermined level duration corresponding to each control code, thereby inserting a pulse code sequence.
[0010] In one possible implementation, the light emission control information includes dimming information; Based on the light emission control information, a composite control signal is output to a pair of signal lines, including: Based on the dimming information, the output DC signal is superimposed with the pulse width modulation (PWM) signal corresponding to the dimming information to generate a composite control signal, which is then output to a pair of signal lines.
[0011] A second aspect of this application provides a controller applied to a hybrid LED light string, the hybrid LED light string including: at least one first LED and at least one light-emitting unit, each second LED in the light-emitting unit being electrically connected to a driver chip, and both the first LED and the driver chip being electrically connected to a pair of signal lines, the controller including: The control unit is used to acquire light emission control information; the light emission control information is generated based on the dynamic effects that the hybrid LED light string needs to achieve. The signal generation unit is electrically connected to the control unit. Under the control of the control unit, it generates a composite control signal based on the light emission control information and outputs the composite control signal to a pair of signal lines so that the driver chip controls the second LED to emit light based on the composite control signal, and the first LED emits light based on the composite control signal.
[0012] A third aspect of the present application provides a light-emitting control system, including: a controller and at least one driver chip; The controller is used to execute the first aspect of the light emission control method; The driver chip, electrically connected to the controller, is used to control the second LED to emit light based on a composite control signal.
[0013] In one possible implementation, the driver chip includes a timing circuit; The driver chip is used to decode the pulse code sequence in the composite control signal through the timing circuit, determine the light emission control mode, and control the second LED to emit light based on the light emission control mode.
[0014] In one possible implementation, the light-emitting control system further includes: a hybrid LED light string; The hybrid LED light string includes at least one first LED and at least one light-emitting unit. The second LED in each light-emitting unit is electrically connected to a driver chip. The first LED and the driver chip are electrically connected to a pair of signal lines. The driver chip is packaged in the light-emitting unit.
[0015] In one possible implementation, two second LEDs form a group, and each group of second LEDs is used to emit light of a different color. In a group of second LEDs, the positive and negative terminals of one second LED are electrically connected to the driver chip and a signal line, respectively, and the positive and negative terminals of the other second LED are electrically connected to the driver chip and another signal line, respectively.
[0016] Compared with the prior art, the embodiments of this application have at least the following technical effects: The light emission control method of the first aspect of this application can be applied to a hybrid LED light string, which includes at least one first LED and at least one light-emitting unit. Each second LED in the light-emitting unit is electrically connected to a driver chip, and both the first LED and the driver chip are electrically connected to a pair of signal lines. Furthermore, the light emission control method of this application can acquire light emission control information; this information is generated based on the dynamic effects that the hybrid LED light string needs to achieve; then, based on the light emission control information, a composite control signal is output to the pair of signal lines, so that the driver chip controls the second LED to emit light based on the composite control signal, and the first LED emits light based on the composite control signal.
[0017] Since the light-emitting control method of this application embodiment is applicable to mixed LED light strings, the driver chip can control the second LED to emit light in a asynchronous manner with the first LED. Furthermore, the method of the first LED emitting light based on a composite control signal and the driver chip controlling the second LED to emit light based on the composite control signal allows for the achievement of complex dynamic effects through the composite control signal. Moreover, the light-emitting control method of this application embodiment outputs a composite control signal through a pair of signal lines, enabling the achievement of complex dynamic effects without adding other independent signal lines.
[0018] It is understood that the beneficial effects of the second and third aspects mentioned above can be found in the relevant descriptions in the first aspect mentioned above, and will not be repeated here. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of a light-emitting control system provided in an embodiment of this application; Figure 2 This is a flowchart of a light emission control method provided in an embodiment of this application; Figure 3 This is a schematic diagram of a structure in which a light-emitting unit is electrically connected to a pair of signal lines, according to an embodiment of this application. Figure 4 This is a schematic diagram of the input signals of a pair of signal lines provided in an embodiment of this application; Figure 5 This is a schematic diagram of a pulse-coded sequence provided in an embodiment of this application; Figure 6 This is a schematic diagram of the structure of a controller provided in an embodiment of this application. Detailed Implementation
[0021] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.
[0022] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.
[0023] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.
[0024] In the description of this application, unless otherwise stated, the " / " used in this specification and appended claims indicates that the related objects are in an "or" relationship. For example, A / B can mean A or B. The "and / or" in this application merely describes the relationship between the related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, a and b, a and c, b and c, or a, b, and c. Here, a, b, and c can be single or multiple.
[0025] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."
[0026] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0027] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.
[0028] The technical solution of this application and how it solves the above-mentioned technical problems will be described in detail below with specific embodiments. It should be noted that the following embodiments can be referenced, learned from or combined with each other, and the same terms, similar features and similar implementation steps in different embodiments will not be described again.
[0029] See Figure 1 As shown, this application provides a schematic diagram of the structure of a light-emitting control system 10. Figure 1 As shown, the light-emitting control system 10 includes a controller 11 and at least one driver chip 12. The controller 11 is used to execute the light-emitting control method of the embodiments of this application; the driver chip 12 is electrically connected to the controller 11, and the driver chip 12 is used to control the second LED to emit light based on a composite control signal.
[0030] In some embodiments, the light-emitting control system 10 further includes a hybrid LED string. The hybrid LED string includes at least one first LED and at least one light-emitting unit, wherein a second LED in each light-emitting unit is electrically connected to a driver chip 12, and both the first LED and the driver chip 12 are electrically connected to a pair of signal lines, and the driver chip 12 is packaged in the light-emitting unit.
[0031] Optionally, the hybrid LED light string can adopt a series structure, for example, a first LED or a light-emitting unit can be connected in series with another first LED or another light-emitting unit to form a power supply series configuration.
[0032] The hybrid LED light string in this embodiment includes a regular first LED and a second LED controlled by a driver chip 12. Through the control of the controller 11 and the driver chip 12, some complex dynamic effects (e.g., gradient, random flashing effects) can be achieved by the hybrid LED light string. See Figure 2 The flowchart illustrates a light-emitting control method provided in this application embodiment. This light-emitting control method is applied to a hybrid LED light string, which includes at least one first LED and at least one light-emitting unit. Each second LED in the light-emitting unit is electrically connected to a driver chip 12, and both the first LED and the driver chip 12 are electrically connected to a pair of signal lines. Figure 2 As shown, the light emission control method of this application embodiment can be executed by the controller 11, and the light emission control method includes steps S201 to S202.
[0033] S201. Obtain light emission control information; the light emission control information is generated based on the dynamic effects that the hybrid LED light string needs to achieve.
[0034] Optionally, the light-emitting control information can be obtained from a preset control program, or it can be obtained from a control command in response to an external device. The external device can be a remote control with various light-emitting control buttons, and corresponding control commands can be issued by touching the light-emitting control buttons.
[0035] One pair of signal lines is a pair of power lines.
[0036] S202. Based on the light emission control information, a composite control signal is output to a pair of signal lines so that the driver chip 12 controls the second LED to emit light based on the composite control signal, and the first LED emits light based on the composite control signal.
[0037] Optionally, the composite control signal is a composite voltage signal that controls the first LED to emit light by changing the voltage waveform, and controls the second LED by the driver chip 12 based on the change in the voltage waveform.
[0038] Specifically, the first LED is an electrodeless lamp, and the light-emitting unit is equivalent to an electrodeless lamp with a built-in driver chip 12.
[0039] The light emission control method of this application embodiment can be applied to a hybrid LED light string, which includes at least one first LED and at least one light-emitting unit. Each second LED in the light-emitting unit is electrically connected to a driver chip 12, and both the first LED and the driver chip 12 are electrically connected to a pair of signal lines. Furthermore, the light emission control method of this application embodiment can acquire light emission control information; this information is generated based on the dynamic effects that the hybrid LED light string needs to achieve; then, based on the light emission control information, a composite control signal is output to the pair of signal lines, so that the driver chip 12 controls the second LED to emit light based on the composite control signal, and the first LED emits light based on the composite control signal.
[0040] Since the light-emitting control method of this application embodiment is applicable to mixed LED light strings, the driver chip 12 can control the second LED to emit light in a way that is asynchronous with the first LED. Simultaneously, the method of the first LED emitting light based on a composite control signal and the driver chip 12 controlling the second LED to emit light based on a composite control signal allows for the achievement of complex dynamic effects through the composite control signal. Furthermore, the light-emitting control method of this application embodiment outputs a composite control signal through a pair of signal lines, enabling the achievement of complex dynamic effects without adding other independent signal lines.
[0041] Optionally, the hybrid LED light string can adopt a series structure, for example, a first LED or a light-emitting unit can be connected in series with another first LED or another light-emitting unit to form a power supply series configuration.
[0042] In some embodiments, two second LEDs form a group, and the group of second LEDs is used to emit light of different colors.
[0043] In a group of second LEDs, the positive and negative terminals of one second LED are electrically connected to the driver chip 12 and a signal line, respectively, and the positive and negative terminals of the other second LED are electrically connected to the driver chip 12 and another signal line, respectively.
[0044] See Figure 3 As shown in the diagram, this application provides a schematic diagram of a structure in which a light-emitting unit is electrically connected to a pair of signal lines. Figure 3 As shown, the light-emitting unit includes a driver chip 12 and two second LEDs. The two second LEDs are LED1 and LED2. The two input terminals A1 and A2 of the driver chip 12 are electrically connected to the first signal terminal V1 and the second signal terminal V2, respectively. The first signal terminal V1 and the second signal terminal V2 are electrically connected to the first signal line and the second signal line, respectively. The first signal line and the second signal line form a pair of signal lines.
[0045] The two output terminals L1 and L2 of the driver chip 12 are electrically connected to the positive terminals of LED1 and LED2, respectively, and the negative terminals of LED1 and LED2 are electrically connected to the first signal line and the second signal line, respectively.
[0046] The light-emitting unit can be a built-in IC flash bulb.
[0047] It is conceivable that one driver chip 12 can control multiple second LEDs individually, or it can control multiple groups of second LEDs.
[0048] The light emission control method of this application embodiment is a two-wire driving control method for hybrid LED light strings. It can synchronously control the driving scheme of a hybrid light string containing ordinary LEDs, electrodeless bicolor LEDs and built-in IC flash bulbs through two power lines.
[0049] In some embodiments, the light emission control information includes polarity change information; based on the light emission control information, outputting a composite control signal to a pair of signal lines includes: grounding one signal line and outputting a composite control signal to the other signal line based on the polarity change information.
[0050] Optionally, the composite control signal is a pulse sequence with polarity reversal. In this embodiment, the polarity change information can be used to control the grounding of one signal line and another, achieving alternating polarity changes and thus different dynamic effects.
[0051] For example: one signal line is the first signal line, and the other signal line is the second signal line. The first signal line is grounded, and the second signal line outputs a composite control signal. The positive and negative terminals of the first LED are connected to the second signal line and the first signal line, respectively, and it can light up under the drive of the composite control signal. Conversely, if the positive and negative terminals of the first LED are connected to the first signal line and the second signal line, respectively, the first LED can be controlled not to light up.
[0052] As an example, combined Figure 3 As shown, the basic conduction path can be determined by the DC polarity. The first signal line is grounded, and the second signal line outputs a composite control signal, which will cause the driver chip 12 to control the LED1 to conduct and emit light, emitting light of the color of LED1. The polarity change information can be selected to control the light emission color.
[0053] In some embodiments, the light emission control information includes light emission mode information; based on the light emission control information, a composite control signal is output to a pair of signal lines so that the driver chip 12 controls the second LED to emit light based on the composite control signal, including: Based on the light emission mode information, a pulse code sequence is inserted into the composite control signal, and the composite control signal with the inserted pulse code sequence is output to a pair of signal lines so that the driver chip 12 determines the light emission control mode based on the pulse code sequence and controls the second LED to emit light based on the light emission control mode.
[0054] In practical applications, by inserting a pulse code sequence into the composite control signal, the driver chip 12 can decode the pulse code sequence to determine the light emission control mode, thereby controlling the second LED to emit light based on the light emission control mode.
[0055] Optionally, the light emission control modes include constant light, gradually brightening, gradually dimming, and flashing modes to achieve complex effects such as gradual changes and random flashing.
[0056] In some embodiments, inserting a pulse-coded sequence into a composite control signal based on emission mode information includes: determining multiple control codes corresponding to the emission mode information based on the emission mode information; and inserting each control code into the composite control signal according to a predetermined level duration corresponding to each control code to insert a pulse-coded sequence.
[0057] Optionally, the predetermined level duration can be the high level duration after power is cut off and then powered on again.
[0058] In practical applications, the light emission mode information can correspond to multiple sets of control codes, and each set of control codes corresponds to a light emission control mode. Different light emission control modes can be switched according to the dynamic effects to be achieved.
[0059] See Figure 4 As shown in the figure, this application embodiment provides a schematic diagram of the input signals of a pair of signal lines. (As...) Figure 4 As shown, the first signal line is electrically connected to the first signal terminal V1, which receives the composite control signal, and the second signal line is electrically connected to the second signal terminal V1, which is grounded. Three pulse-coded sequences 13 are inserted into the composite control signal; each pulse-coded sequence 13 is a pulse sequence composed of a set of high and low levels.
[0060] See Figure 5 As shown, this application provides a schematic diagram of a pulse-coded sequence. Figure 5 As shown, the control code includes a start code, a 0 code, a 1 code, and a stop code. The high-level duration TL corresponds to the start code, the high-level duration T0 corresponds to the 0 code, the high-level duration T1 corresponds to the 1 code, and the high-level duration TR corresponds to the stop code.
[0061] In some embodiments, the driver chip 12 includes a timing circuit. The driver chip 12 is used to decode the pulse code sequence in the composite control signal through the timing circuit, determine the light emission control mode, and control the second LED to emit light based on the light emission control mode.
[0062] The driver chip 12 in this embodiment can determine the predetermined level duration in the pulse code sequence through a timing circuit, thereby determining the corresponding control code and then determining the light emission control mode.
[0063] Optionally, a control address can also be inserted into the composite control signal in this application embodiment. The control address is generated by a principle similar to that of pulse code sequence, so that the driver chip 12 can control the corresponding second LED to emit light based on the control address.
[0064] Furthermore, the driver chip 12 is packaged together with the second LED to form a light-emitting unit, which can operate even when the power supply and ground are switched, and can distinguish the control code by judging the duration of the power-on after the power is turned off.
[0065] This application embodiment can apply voltage to a pair of power lines of a hybrid LED string, and control the emission color or on / off state of at least some LEDs in the hybrid LED string by changing the voltage polarity of the pair of power lines; control codes are sent to at least one driver chip 12 in the hybrid LED string by superimposing a pulse-coded sequence with a specific time width on the pair of power lines. Furthermore, the pulse-coded sequence and the polarity change information of the voltage polarity change are generated by the same controller 11 and can be synchronously responded to by the driver chip 12 and at least one other type of LED device.
[0066] In some embodiments, the light emission control information includes dimming information; based on the light emission control information, outputting a composite control signal to a pair of signal lines includes: based on the dimming information, superimposing an output DC signal with a pulse width modulation (PWM) signal corresponding to the dimming information to generate a composite control signal, and outputting the composite control signal to a pair of signal lines.
[0067] The controller 11 in this embodiment can perform PWM modulation. When dimming is required, a low-frequency PWM is superimposed on the DC signal to achieve dimming.
[0068] Optionally, the controller 11 is connected to the driver chip 12 and other LED devices via only one pair of power lines. The controller 11 is configured to generate a composite control signal that can simultaneously represent the following through a single voltage waveform: polarity change information for selecting the LED emission color, a pulse code sequence for triggering a specific emission control mode of the driver chip 12, and dimming information for adjusting the duty cycle of the brightness.
[0069] The embodiments of this application aim to provide a simplified solution that can achieve unified power supply, color switching, dynamic light emission mode control and brightness adjustment for hybrid light strings (electrodeless lamps, electrodeless lamps with built-in driver chips) using only two power lines.
[0070] The core of this application's embodiment lies in the coordinated operation of the controller 11, the driver chip 12, and the hybrid LED light string. The content of the coordinated control process includes: 1. Controller 11 generates a composite control signal based on a preset dynamic effect and applies it to the corresponding signal lines. The composite control signal is a composite waveform, including: (1) DC polarity: determines the basic conduction path and color (e.g., when V1+ V2-, the electrodeless LED lights up a specific color and the built-in IC flashing bulb lights up a specific color).
[0071] (2) Protocol pulse: When it is necessary to switch the light emission control mode, a high-level pulse sequence with a specific time width is inserted to control the driver chip 12.
[0072] (3) PWM modulation: When dimming is required, a low-frequency PWM is superimposed on the DC signal.
[0073] 2. The driver chip 12 acts as the "intelligent node" of the light-emitting control system 10, processing the signals input from the first and second signal lines in parallel. First, it identifies the DC polarity to determine whether to drive LED1 or LED2. Simultaneously, it detects the presence of protocol pulses, decodes them through a timing circuit, and switches to the corresponding light-emitting control mode (such as constant light or built-in flashing waveform mode). The output stage is jointly controlled by polarity selection and mode selection.
[0074] Components in a hybrid LED string: (1) Electrodeless dual-color LED: responds to the DC polarity of a pair of signal lines (the polarity determines which color is emitted).
[0075] (2) Built-in IC flashing: may respond to the periodic switching of the power supply (such as polarity reversal or PWM).
[0076] Through the above design, each set of composite waveform signals issued by the controller 11 can enable the two types of devices (electrodeless lamp and built-in IC flash bulb) mixed in the same circuit to take what they need and work together, ultimately presenting the overall dynamic effect expected by the designer.
[0077] This application embodiment solves the problem of unified, synchronized, and simplified control of hybrid LED light strings. The controller 1111 uses a three-in-one signal of power polarity, protocol pulse, and PWM dimming to synthesize a unified waveform so that each device can respond in parallel.
[0078] The following technical effects can be achieved by applying the embodiments of this application: (1) Extremely simple wiring: Only two wires are needed to complete power supply, control and dimming at the same time; (2) True hybrid drive: It is the first practical solution that can use the same pair of signal lines to synchronously control the electrodeless LED and the intelligent driver chip 12; (3) Cost and reliability: The protocol is extremely simple and the decoding circuit can be implemented at low cost; (4) Flexible control granularity: It can finely control the intelligent drive node through the protocol, or control the lamp as a whole through polarity / PWM to meet the needs of complex scenarios.
[0079] See Figure 6 As shown in the diagram, this application provides a schematic diagram of the structure of a controller 11. Figure 6 As shown, the controller 11 is applied to a hybrid LED light string, which includes at least one first LED and at least one light-emitting unit. Each second LED in the light-emitting unit is electrically connected to a driver chip 12. The first LED and the driver chip 12 are electrically connected to a pair of signal lines. The controller 11 includes a control unit 111 and a signal generation unit 112.
[0080] The control unit 111 is used to acquire light emission control information; the light emission control information is generated based on the dynamic effects that the hybrid LED light string needs to achieve; The signal generation unit 112 is electrically connected to the control unit 111. Under the control of the control unit, the signal generation unit 112 generates a composite control signal based on the light emission control information and outputs the composite control signal to a pair of signal lines so that the driver chip 12 controls the second LED to emit light based on the composite control signal, and the first LED emits light based on the composite control signal.
[0081] Optionally, the light emission control information includes polarity change information; the control unit 111 is used to ground one signal line and output a composite control signal to another signal line based on the polarity change information.
[0082] Optionally, the light emission control information includes light emission mode information; the control unit 111 is used to insert a pulse code sequence into the composite control signal through the signal generation unit 112 based on the light emission mode information, and output the composite control signal with the inserted pulse code sequence to a pair of signal lines, so that the driver chip determines the light emission control mode based on the pulse code sequence, and controls the second LED to emit light based on the light emission control mode.
[0083] Optionally, the control unit 111 is used to determine multiple control codes corresponding to the light emission mode information based on the light emission mode information; and to insert each control code into the composite control signal by the signal generation unit 112 according to the predetermined level duration corresponding to each control code, so as to insert a pulse code sequence.
[0084] Optionally, the light emission control information includes dimming information; the control unit 111 is used to generate a composite control signal by superimposing the output DC signal with the pulse width modulation (PWM) signal corresponding to the dimming information through the signal generation unit 112 based on the dimming information, and output the composite control signal to a pair of signal lines.
[0085] In applications, each unit in controller 11 can be a software program module, or it can be implemented through different logic circuits integrated in the processor, or it can be implemented through multiple distributed processors.
[0086] The controller 11 in this application embodiment can execute the method provided in this application embodiment. The implementation principle is similar. The actions performed by each unit in the controller 11 in each embodiment of this application correspond to the steps in the method of each embodiment of this application. For detailed functional descriptions of each unit of the controller 11, please refer to the descriptions in the corresponding methods shown above, which will not be repeated here.
[0087] The controller 11, which applies the embodiments of this application, can achieve at least the following beneficial effects: The controller 11 of this embodiment can be applied to a hybrid LED light string, which includes at least one first LED and at least one light-emitting unit. Each second LED in the light-emitting unit is electrically connected to a driver chip 12, and both the first LED and the driver chip 12 are electrically connected to a pair of signal lines. Furthermore, the controller 11 of this embodiment can acquire light emission control information; this information is generated based on the dynamic effects that the hybrid LED light string needs to achieve; then, based on the light emission control information, a composite control signal is output to the pair of signal lines, so that the driver chip 12 controls the second LED to emit light based on the composite control signal, and the first LED emits light based on the composite control signal.
[0088] Since the controller 11 in this embodiment is applicable to mixed LED light strings, the driver chip 12 can control the second LED to emit light in a way that is asynchronous with the first LED. Simultaneously, the method of the first LED emitting light based on a composite control signal and the driver chip 12 controlling the second LED to emit light based on a composite control signal allows for the realization of complex dynamic effects through the composite control signal. Furthermore, the controller 11 in this embodiment outputs a composite control signal through a pair of signal lines, enabling the realization of complex dynamic effects without adding any other independent signal lines.
[0089] It should be noted that the information interaction and execution process between the above-mentioned devices / units are based on the same concept as the method embodiments of this application. For details on their specific functions and technical effects, please refer to the method embodiments section, and they will not be repeated here.
[0090] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.
[0091] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps in the above-described method embodiments.
[0092] If the integrated units described above are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include at least: any entity or device capable of carrying computer program code to a device / terminal equipment, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium. Examples include USB flash drives, portable hard drives, magnetic disks, or optical disks.
[0093] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk drive (HDD), or solid-state drive (SSD), etc. The storage medium can also include combinations of the above types of memory.
[0094] This application provides a computer program product that, when run on a processor, enables the processor to execute the steps described in the various method embodiments above.
[0095] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.
[0096] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.
[0097] In the embodiments provided in this application, it should be understood that the disclosed apparatus / network devices and methods can be implemented in other ways. For example, the apparatus / network device embodiments described above are merely illustrative. For instance, the division of modules or units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.
[0098] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0099] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.
Claims
1. A method for controlling light emission, characterized in that, An application to a hybrid LED light string, the hybrid LED light string comprising: at least one first LED and at least one light-emitting unit, each second LED in the light-emitting unit being electrically connected to a driver chip, and the first LED and the driver chip being electrically connected to a pair of signal lines, the method comprising: Obtain light emission control information; the light emission control information is generated based on the dynamic effects that the hybrid LED string needs to achieve. Based on the light emission control information, a composite control signal is output to a pair of signal lines, so that the driver chip controls the second LED to emit light based on the composite control signal, and the first LED emits light based on the composite control signal.
2. The light emission control method according to claim 1, characterized in that, The light emission control information includes polarity change information; The step of outputting a composite control signal to a pair of signal lines based on the light emission control information includes: Based on the polarity change information, one of the signal lines is grounded, and the composite control signal is output to the other signal line.
3. The light emission control method according to claim 1, characterized in that, The light emission control information includes light emission mode information; The step of outputting a composite control signal to a pair of signal lines based on the light emission control information, so that the driver chip controls the second LED to emit light based on the composite control signal, includes: Based on the light emission mode information, a pulse code sequence is inserted into the composite control signal, and the composite control signal with the inserted pulse code sequence is output to a pair of signal lines, so that the driver chip determines the light emission control mode based on the pulse code sequence and controls the second LED to emit light based on the light emission control mode.
4. The light emission control method according to claim 3, characterized in that, The step of inserting a pulse-coded sequence into the composite control signal based on the emission mode information includes: Based on the light emission mode information, multiple control codes corresponding to the light emission mode information are determined; Each control code is inserted into the composite control signal according to a predetermined level duration corresponding to each control code, thereby inserting the pulse-coded sequence.
5. The light emission control method according to any one of claims 1-4, characterized in that, The light emission control information includes dimming information; The step of outputting a composite control signal to a pair of signal lines based on the light emission control information includes: Based on the dimming information, the output DC signal is superimposed with the pulse width modulation (PWM) signal corresponding to the dimming information to generate a composite control signal, which is then output to a pair of signal lines.
6. A controller, characterized in that, An application is made to hybrid LED light strings, the hybrid LED light string comprising: at least one first LED and at least one light-emitting unit, each second LED in the light-emitting unit being electrically connected to a driver chip, the first LED and the driver chip being electrically connected to a pair of signal lines, the controller comprising: A control unit is used to acquire light emission control information; the light emission control information is generated based on the dynamic effects that the hybrid LED string needs to achieve. A signal generation unit, electrically connected to the control unit, is used to generate a composite control signal based on the light emission control information under the control of the control unit, and output the composite control signal to a pair of signal lines, so that the driver chip controls the second LED to emit light based on the composite control signal, and the first LED to emit light based on the composite control signal.
7. A light-emitting control system, characterized in that, include: Controller and at least one driver chip; The controller is used to perform the light emission control method as described in any one of claims 1-5; The driver chip is electrically connected to the controller and is used to control the second LED to emit light based on a composite control signal.
8. The light-emitting control system according to claim 7, characterized in that, The driver chip includes a timing circuit; The driver chip is used to decode the pulse code sequence in the composite control signal through a timing circuit, determine the light emission control mode, and control the second LED to emit light based on the light emission control mode.
9. The light-emitting control system according to claim 7, characterized in that, Also includes: Hybrid LED light strings; The hybrid LED string includes at least one first LED and at least one light-emitting unit. The second LED in each light-emitting unit is electrically connected to one of the driver chips. The first LED and the driver chip are electrically connected to a pair of signal lines. The driver chip is packaged in the light-emitting unit.
10. The light-emitting control system according to claim 9, characterized in that, Two second LEDs form a group, and each group of second LEDs is used to emit different colors of light. In a group of second LEDs, the positive and negative terminals of one second LED are electrically connected to the driver chip and one of the signal lines, respectively, and the positive and negative terminals of the other second LED are electrically connected to the driver chip and another of the signal lines, respectively.