Light source dynamic synchronization method and LED lighting system

Abstract

The present invention provides a light source dynamic synchronization method and an LED lamp system using the light source dynamic synchronization method. The light source dynamic synchronization method includes a color adjustment control step S0, in which the same color adjustment control signal is output to a first light source and a second light source at the same time to adjust the color output of the first light source and the second light source; a signal transmission step S1, in which an RGB sensor connected to the first light source in communication detects the luminous color of the second light source and outputs the color signal of the second light source; a signal analysis step S2, in which a color control signal associated with the color signal is analyzed and generated according to the color signal of the second light source; a signal comparison step S3, in which the color control signal generated by the analysis of the signal analysis step S2 is compared with the color control signal of the first light source to determine whether the difference between the two exceeds a threshold; and a synchronization adjustment step S4, in which, if the threshold is exceeded, the color control signal of the first light source is adjusted to be synchronized with the color control signal of the second light source.

Description

Technical Field

[0001] The present invention relates to the technical field of electronics and electrical appliances, and in particular to a light source dynamic synchronization method and an LED lamp system using the light source dynamic synchronization method. Background Art

[0002] With the rapid development of modern technology and the diversification of application scenarios, the role of LED lamps in life and work is no longer limited to simple lighting effects. The color of lamps is not just a single color, but can be changed according to the requirements of lighting effects.

[0003] Among them, the color of the LED lamp can be adjusted by the control circuit of the LED lamp, that is, different color control signals in the control circuit will result in different colors of the LED lamp. If the LED lamp needs to achieve color adjustment, it can be achieved by setting different color control signals in the control circuit. In the actual application of two or more LED lamps in the same scene, in order to achieve a better color adjustment effect, it is often necessary for the colors of the lights of two or more LED lamps to be adjusted and changed synchronously. However, even if multiple color-adjustable LED lamps controlled by different control circuits are powered by the same power supply and receive the same control command for color adjustment at the same time, as the use time goes by, the color adjustment between different LED lamps will be out of sync, and the color adjustment of a certain LED lamp will lag behind other LED lamps, which will change the color adjustment effect of the LED lamp and affect the expectations and user experience of the LED color adjustment scene application.

[0004] Therefore, for multiple LED lamps controlled by different control sources, how to avoid the occurrence of color adjustment asynchrony between different LED lamps, and how to correct the color adjustment asynchrony in a timely manner when it occurs, are problems that need to be urgently solved in this field. Summary of the invention

[0005] The purpose of the present invention is to provide a light source dynamic synchronization method, which can correct the light color adjustment error between different light sources and achieve color adjustment synchronization between light sources.

[0006] The light source dynamic synchronization method provided by the present invention is used to synchronize the color adjustment of a first light source and a second light source controlled by different control sources, comprising:

[0007] A color adjustment control step S0, outputting the same color adjustment control signal to the first light source and the second light source at the same time, adjusting the color output of the first light source and the second light source;

[0008] Signal transmission step S1, the RGB sensor connected to the first light source for communication detects the luminous color of the second light source and outputs a color signal of the second light source;

[0009] Signal analysis step S2, analyzing and generating a color control signal of the second light source associated with the color signal according to the color signal of the second light source;

[0010] A signal comparison step S3, comparing the color control signal of the second light source generated by the signal analysis step S2 with the color control signal of the first light source to determine whether the difference between the two exceeds a threshold;

[0011] In the synchronization adjustment step S4, if the threshold is exceeded, the color control signal of the first light source is adjusted to be synchronized with the color control signal of the second light source.

[0012] In the above technical scheme, the dynamic light source synchronization method provided by the present invention collects and detects the luminous color of the second light source through an RGB sensor, and generates a color signal of the second light source based on the detected luminous color of the second light source, and then further analyzes the color signal of the second light source to obtain its color control signal, and then compares it with the color control signal of the first light source. When it is determined that the difference between the color control signal of the first light source and the color control signal of the second light source exceeds a threshold, the color control signal of the first light source is adjusted to synchronize it with the color change of the second light source, thereby synchronizing the color adjustment of the first light source with the color adjustment of the second light source.

[0013] Through the above-mentioned dynamic synchronization method of light sources, the RGB sensor set on the first light source detects the luminous color of the second light source, and analyzes and generates a color control signal of the second light source accordingly. When the color adjustment of the first light source and the second light source is out of sync, the color control signal of the first light source is adjusted and corrected in a way that the color control signal of the first light source is synchronized with the color control signal of the second light source, so that the color adjustment of the first light source and the second light source is synchronized when the first light source and the second light source are adjusted next time, the synchronous color adjustment effect of the two light sources is maintained, and it is ensured that the application scenarios of the first light source and the second light source meet the user's expectations and experience.

[0014] According to the light source dynamic synchronization method of the present invention, the color information of the second light source is collected by the RGB sensor connected to the first light source in communication, and the color control signal of the second light source is generated based on the analysis, so that even if two light sources are independently controlled by their own power supplies and control circuits, they can be synchronized and adjusted by comparing their own color control signals to achieve color synchronization. Furthermore, because the color control signal is an electrical signal, it can be synchronized and adjusted more accurately compared with directly comparing the color signal.

[0015] In the preferred technical solution of the present invention, the first light source and the second light source are controlled by different control sources, but the control sources used by the first light source and the second light source are exactly the same type of drive circuit and control chip. According to the preferred technical solution, the first light source and the second light source use exactly the same type of drive circuit and control chip, which can ensure that when the same color control signal is applied to the first light source and the second light source, the influence of the circuit structure of the light source itself on the output of the color control signal is reduced. At the same time, because the same control chip is used, in the signal analysis step, according to the corresponding relationship between the luminous color of the first light source and the color control signal, the color control signal of the second light source associated with the luminous color can be reversely analyzed and generated without excessive redundant data and calculations.

[0016] In the light source dynamic synchronization method provided in the technical solution of the present invention, the color control signal of the first light source or the second light source includes at least one of the duty cycle and frequency of the pulse width modulation wave. According to this preferred technical solution, the color change of the LED lamp as the first light source or the second light source is adjusted according to the pulse width modulation wave in its control circuit. That is to say, the properties of the pulse width modulation wave including the duty cycle and frequency determine the luminous color of the first light source and the second light source, that is, the output waveform of the pulse modulation wave is associated with the color of the LED light according to the preset color adjustment curve. Therefore, the color of the LED light can be reversely analyzed, for example, according to the color signal of the detected second light source, to obtain the corresponding duty cycle and frequency of the pulse modulation wave of the second light source corresponding to the color.

[0017] In the preferred technical solution of the present invention, the RGB sensor used in the light source dynamic synchronization method is connected to the control chip of the first light source. According to the preferred technical solution, through the wired or wireless communication connection between the RGB sensor and the control chip of the first light source, the control chip of the first light source can receive the color signal of the second light source transmitted by the RGB sensor, and analyze it in the control chip of the first light source to generate a color control signal of the second light source corresponding to the color signal of the second light source, and directly compare and make necessary corrections with the color control signal of the first light source generated by the control chip of the first light source to achieve synchronous color adjustment of the first light source and the second light source. At this time, when the first light source and the second light source use exactly the same driving circuit and control chip, because the corresponding relationship between the color control signals of the first light source and the second light source and the luminous color is the same, the step of the control chip of the first light source analyzing the color signal of the second light source is simpler, faster and more accurate.

[0018] Preferably, in the light source dynamic synchronization method provided by the technical solution of the present invention, the RGB sensor detects the luminous color of the second light source once at a certain time interval. For example, the time interval is 1 second or 1 day or 1 week, that is, after 1 second or 1 day or 1 week from the last detection time, when the first light source and the second light source are adjusted for the first time, the RGB sensor detects the luminous color of the second light source once, and outputs the color signal of the second light source according to the detected luminous color, and then synchronizes the color adjustment of the first light source with the second light source through the signal analysis step, the signal comparison step and the synchronization adjustment step, so as to automatically perform synchronization detection and correction adjustment in real time and regularly. Moreover, the shorter the time interval, the lower the probability of a color adjustment difference between the first light source and the second light source, and the shorter the time interval, the more adaptable it is to the situation of high-frequency color adjustment changes of the first light source and the second light source.

[0019] Of course, the RGB sensor can also be set to detect the luminous color of the second light source every time the first light source and the second light source are adjusted, regardless of whether the adjustment of the first light source and the second light source is performed regularly or randomly. The color signal of the second light source can be output according to the detected luminous color, and then the color adjustment of the first light source is synchronized with the second light source through the signal analysis step, the signal comparison step and the synchronization adjustment step, so as to perform synchronous detection and correction adjustment on the first light source and the second light source. Similarly, in the light source dynamic synchronization method in the preferred technical solution of the present invention, the RGB sensor can detect the luminous color of the second light source in a manual triggering mode. The RGB sensor can be set to manually trigger the detection of the luminous color of the second light source when the user finds that the color adjustment of the first light source and the second light source is not synchronized. The RGB sensor can be manually triggered immediately, and then the RGB sensor can be manually triggered by performing dimming operations on the first light source and the second light source to detect the luminous color of the second light source, and the second light source color signal can be output to achieve synchronization of the color adjustment of the first light source with the second light source, so that synchronization detection and correction adjustment can be performed at any time according to actual conditions, without waiting for the next regular detection cycle to synchronize.

[0020] The above-mentioned periodic and manual triggering detection methods can be used alone or together in the LED lighting system.

[0021] Preferably, in the light source dynamic synchronization method in the technical solution of the present invention, the first light source can be more than two. That is, when color dynamic synchronization is required among multiple light sources, only one of the light sources (for example, the second light source) needs to be used as a comparison reference, and the other light sources, whether one or more, only need to be compared and adjusted with the color signal of this one light source, so that color dynamic synchronization among multiple light sources can be achieved.

[0022] Preferably, in the technical solution of the present invention, when the RGB sensor detects the luminous color of the second light source, the light of the first light source is shielded or the light-receiving surface of the RGB sensor is set toward the second light source. Through the above structure, the RGB sensor can focus on capturing the color signal of the second light source, avoiding the color of the first light source itself affecting the RGB sensor's capture of the luminous color of the second light source, thereby ensuring that the RGB sensor can accurately output the color signal of the second light source.

[0023] In a preferred technical solution of the present invention, there is also provided an LED lamp system, comprising

[0024] at least two first light sources and second light sources controlled by different control sources;

[0025] The control terminal controls the dimming of the first light source and the second light source simultaneously;

[0026] an RGB sensor, communicatively connected to one of the first light source or the second light source, and capable of detecting a color of light emitted by the other of the first light source or the second light source;

[0027] The LED lamp system of the present invention can run any one of the above-mentioned light source dynamic synchronization methods. Through the above-mentioned light source dynamic synchronization method, the occurrence of color adjustment asynchronism between the first light source and the second light source is avoided, and color adjustment asynchronism is corrected in time when it occurs.

[0028] Preferably, in the technical solution of the present invention, the communication connection mode between the RGB sensor used in the LED lamp system and the first light source or the second light source is a wired connection and / or a wireless connection. Both the wired and wireless connection modes can timely and effectively transmit the relevant information of the first light source or the second light source detected by the RGB sensor. In practical applications, users can select the connection mode according to their needs and the circuit structure itself, and no further restrictions are made here. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a flow chart of a light source dynamic synchronization method provided in the first embodiment of the present invention;

[0030] Figure 2 is a schematic diagram of the structure of an LED lamp system provided in the first embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of an LED lamp system provided in Embodiment 3 of the present invention;

[0032] Figure 4 This is a schematic diagram of another LED lamp system structure provided in the third embodiment of the present invention.

[0033] Explanation of the reference numerals: 1-first light source, 11-control chip, 2-second light source, 3-RGB sensor, 31-light receiving surface, 4-LED lighting system. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0035] It should be noted that, in the description of the present invention, terms indicating positional relationships such as "outside", "inside", "upper", "lower", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings. This is only to facilitate those skilled in the art to understand the present invention more vividly, and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0036] Embodiment 1

[0037] like Figure 1 As shown, the first embodiment of the present invention provides a light source dynamic synchronization method for synchronizing the color adjustment of a first light source and a second light source controlled by different control sources, comprising:

[0038] A color adjustment control step S0, outputting the same color adjustment control signal to the first light source and the second light source at the same time, adjusting the color output of the first light source and the second light source;

[0039] Signal transmission step S1, the RGB sensor connected to the first light source for communication detects the luminous color of the second light source and outputs a color signal of the second light source;

[0040] Signal analysis step S2, analyzing and generating a color control signal of the second light source associated with the color signal according to the color signal of the second light source;

[0041] A signal comparison step S3, comparing the color control signal of the second light source generated by the signal analysis step S2 with the color control signal of the first light source to determine whether the difference between the two exceeds a threshold;

[0042] In the synchronization adjustment step S4, if the threshold is exceeded, the color control signal of the first light source is adjusted to be synchronized with the color control signal of the second light source.

[0043] like Figure 2As shown, the hardware structure for executing the light source dynamic synchronization method of this embodiment includes a first light source 1 and a second light source 2 which are independent of each other, and an RGB sensor 3 which is communicatively connected to the first light source 1 .

[0044] For example, first, in the color adjustment step S0, the same color adjustment control signal is output to the first light source and the second light source at the same time, so that the color output of the first light source and the second light source is a mode of "red light for 3 seconds, green light for 4 seconds, blue light for 5 seconds" in which the three colors of light are continuously cycled in sequence, and the first light source and the second light source are lit at the same time. In addition, the power supply of the first light source and the second light source can be a lithium battery, a dry cell, a rectifier power supply, or other power sources that can provide power to the light source.

[0045] Furthermore, in the signal transmission step S1, the RGB sensor is used as a color sensor to compare the collected light emitted by the second light source with a preset reference color to make a judgment and output a color signal of the second light source.

[0046] There is no special restriction on the form of the RGB sensor. The red, green and blue colors can be filtered separately by installing a color filter, and then the color information is transmitted to a microcontroller or other type of digital processor through an amplifier and an A / D converter to output a color signal. It is also possible to use an integrated light-to-voltage converter, without separating the three colors, and directly transmit the color information to a microcontroller or other type of digital processor for digital processing through a color filter, an amplifier, and an A / D converter to output a color signal. It is also possible to use an integrated light-to-frequency conversion to directly convert the luminous color intensity of the second light source into a pulse sequence.

[0047] Then, in the signal analysis step S2, the color signal output by the RGB color sensor is converted into a color control signal. Compared with the light signal, the color control signal is an electrical signal, which can be more conveniently and accurately compared and analyzed. In the signal analysis step S2, it is only necessary to be able to convert the color signal into a color control signal for further analysis, and no conversion method is limited. For example, according to the received color signal, it can be searched with a preset color signal-color control signal association table, and then the color control signal corresponding to the color signal can be analyzed and determined.

[0048] Finally, in the signal comparison step S3, the color control signal of the second light source determined by the analysis is compared with the color control signal of the first light source to determine whether the difference between the two exceeds the threshold; if it does not exceed the threshold, it is considered that the color adjustment of the first light source and the second light source is synchronized, and no further action is required; in the synchronization adjustment step S4, if it exceeds the threshold, the color control signal of the first light source is adjusted to synchronize with the color control signal of the second light source. So that the color changes of the first light source and the second light source can be synchronized when the first light source and the second light source are adjusted next time. In addition, in the signal comparison step S3, the color control signal of the second light source obtained by the luminous analysis of the second light source received by the RGB sensor is always used as a reference to adjust the color control signal of the first light source connected to the RGB sensor so that the two are synchronized. It is ensured that the application scenarios of the first light source and the second light source meet the user's expectations and experience.

[0049] In the signal comparison step S3, the color control signal of the second light source is compared with the color control signal of the first light source, and it is determined whether the difference between the two exceeds a threshold. The threshold here is usually a preset frequency and / or duty cycle difference of the color control signal of the second light source, which can be appropriately preset according to the application scenarios of the first light source and the second light source, and there is no special limitation.

[0050] When the light source is a single-chip color adjustment, the color control signal of the single chip is compared in the signal comparison step S3. According to whether the difference in the waveform of the color control signal of the single chip exceeds the threshold, the frequency difference is, for example, 10Hz, that is, when the frequency difference between the color control signal of the second light source and the color control signal of the first light source exceeds 10Hz, correction is performed. When the light source is an RGB three-color light adjustment, the signal comparison step S3 needs to compare the difference in the waveform of the color control signal corresponding to the red, green, and blue colors respectively, and the difference exceeds the threshold. Still with the frequency difference being, for example, 10Hz, it is necessary to determine whether the frequency difference between the color control signal of the second light source corresponding to the red, green, and blue colors and the color control signal of the first light source exceeds 10Hz, and the color control signal corresponding to the color with a frequency difference exceeding 10Hz is corrected.

[0051] The light source dynamic synchronization method in this embodiment executes the color adjustment control step S0, the signal transmission step S1, the signal analysis step S2, the signal comparison step S3, and the synchronization adjustment step S4. When the first light source and the second light source are adjusted in color, the color signal of the second light source is detected and transmitted by the RGB sensor, and the color signal of the second light source is further analyzed to obtain the color control signal of the second light source, which is then compared with the color control signal of the first light source. According to the result of the threshold judgment, the color control signal of the first light source is synchronized with the color control signal of the second light source.

[0052] According to the above-mentioned light source dynamic synchronization method, it is possible to avoid the occurrence of asynchronous color changes between the first light source and the second light source when adjusting the color, and it is also possible to make corrections after the color changes are asynchronous. In addition, the signals for comparison and synchronization are color control signals analyzed from color signals, and the color control signals are electrical signals. Compared with direct comparison of color signals, they can be more accurate and intuitive, and also facilitate subsequent synchronization adjustments.

[0053] Preferably, in the first embodiment of the present invention, the first light source and the second light source are controlled by different power supplies, but the power supplies of the first light source and the second light source use exactly the same driving circuit and control chip. Because the same control chip is used, in the signal analysis step S2, according to the correspondence between the luminous color and the color control signal preset in the control chip of the first light source, the color control signal of the second light source associated with the luminous color can be reversely analyzed and generated without excessive redundant data and calculations. Moreover, the same driving circuit and control chip can make almost exactly the same response to the same color adjustment control signal and color control signal, and output almost exactly the same light. Not only can the light emitted by the first light source and the second light source be kept highly consistent when they start, and the color difference between the two light sources can be avoided as much as possible; it can also keep the color consistency of the corrected color of the first light source and the color of the second light source when synchronous correction is performed according to the color control signal of the second light source.

[0054] In the first embodiment of the present invention, the color control signal of the first light source or the second light source includes at least one of the duty cycle and frequency of the pulse width modulation wave (PWM). As the first light source and the second light source of the LED lamp, the pulse width modulation wave in the control circuit is used as the color adjustment signal to adjust the color of the first light source and the second light source. That is to say, the properties of the pulse width modulation wave including the duty cycle and the frequency determine the luminous color of the first light source and the second light source, that is, the output waveform of the pulse modulation wave and the color of the LED light are associated with the preset color adjustment curve. Therefore, the waveform of the pulse width modulation wave corresponding to the color can be reversely analyzed by the color signal of the detected second light source to obtain the corresponding duty cycle and frequency of the pulse modulation wave of the second light source corresponding to the color. Usually, the duty cycle and frequency of the pulse modulation wave need to be adjusted at the same time to achieve synchronization, and when one of the duty cycle and frequency of the pulse modulation waves of the two light sources is the same, only the other one needs to be adjusted accordingly to achieve color synchronization of the two light sources.

[0055] Moreover, in the signal comparison step S3, after the difference in duty cycle and / or frequency between the color control signal of the first light source and the color control signal of the second light source is compared as a threshold, the duty cycle or frequency of the color control signal of the first light source is adjusted to achieve color synchronization of the first light source and the second light source, which can also achieve the technical effect of the present invention.

[0056] like Figure 2 As shown, preferably, in the first embodiment of the present invention, the RGB sensor 3 is connected to the control chip 11 of the first light source 1 for communication, and the RGB sensor 3 transmits the color control signal of the second light source 2 to the control chip 11 of the first light source 1. Here, the data transmission between the RGB sensor 3 and the control chip 11 of the first light source 1 can be realized by direct external interface, lead wires and other electrical components, or can be transmitted by wireless means such as Bluetooth.

[0057] Furthermore, in the first embodiment, the light receiving surface 31 of the RGB sensor 3 faces the second light source 2 and faces away from the first light source 1. This structure can avoid the influence of the light emitted by the first light source 1 on the RGB sensor 3, so that the color signal received by the RGB sensor 3 only includes the color signal emitted by the second light source 2. In addition, the light emitted by the first light source 1 to the RGB sensor 3 can be blocked by other means, or the light emitted by the first light source 1 can be directly shielded by the RGB sensor 3 to reduce the error caused by interference factors.

[0058] Embodiment 2

[0059] In the second embodiment of the present invention, the RGB sensor 3 detects the luminous color of the second light source 2 once at regular intervals, and other component structures and operating modes are the same as those in the first embodiment, which will not be described again.

[0060] For example, the color output of the first light source 1 and the second light source 2 is a mode in which the three colors of light are continuously cycled in sequence, namely, "red light for 3 seconds, green light for 4 seconds, and blue light for 5 seconds". It can be set that the RGB sensor 3 detects the luminous color of the second light source 2 once every 1 second. In this way, if a color change lag occurs in the cyclic color adjustment process of red light-green light-blue light, it only takes 1 second at most to detect and correct it. It can be deduced from this that the shorter the interval, the shorter the color change lag may occur and last. Accordingly, if the time interval is shortened to the millisecond level or real-time detection is performed without a time interval, even if a color change lag occurs, it will be corrected within a few milliseconds or in real time, and the human eye can hardly detect it. From the user's point of view, there will be no color change lag between the light sources during color adjustment, and it can also adapt to the high-frequency color adjustment changes of the first light source 1 and the second light source 2. In addition, the time interval here is not necessarily an absolutely identical time, and can be a flexible time interval such as 5 seconds for the first time, 3 seconds for the second time, and 10 seconds for the third time.

[0061] Preferably, in the second embodiment of the present invention, the RGB sensor 3 detects the luminous color of the second light source 2 in a manually triggered manner. In the case where the first light source 1 and the second light source 2 do not need to be synchronized in real time, there is no need to set the above-mentioned time interval for detection. It is only necessary to send a manual trigger signal to start the RGB sensor 3 when the user finds that the color adjustment of the first light source 1 and the second light source 2 is not synchronized, and then dim the first light source 1 and the second light source 2 to detect the luminous color of the second light source 2, and output the color signal of the second light source 2 to achieve synchronization between the color adjustment of the first light source 1 and the color adjustment of the second light source 2. According to this preferred embodiment, the first light source 1 and the second light source 2 can be synchronized at any time when needed, without the need for the RGB sensor 3 to frequently perform detection and signal transmission, thereby reducing the power consumption of the RGB sensor 3 and achieving economic savings.

[0062] In addition, the above two trigger synchronization methods are not contradictory, and can be used either or both. For example, if the time interval of the timing trigger mechanism is 5 seconds, the RGB sensor 3 is triggered for detection at the 5th, 10th, 15th, and 20th seconds after the first light source 1 and the second light source 2 are turned on, and the user can also manually trigger the RGB sensor 3 for synchronization during this period, such as at the 8th second.

[0063] Embodiment 3

[0064] Embodiment 3 of the present invention is an implementation method further optimized on the basis of Embodiment 1 and Embodiment 2. Figure 3 As shown, in this embodiment, the first light source 1 can be more than two, and the control chips 11 of the multiple first light sources 1 are connected to the RGB sensor 3 via wireless communication (or wired). The structures and operating methods of other components are the same as those in Example 1 and will not be repeated here.

[0065] When dynamic color synchronization is required among multiple light sources, only one of the light sources (the second light source 2) needs to be used as a comparison basis. The second light source 2 does not need to be color corrected and adjusted. The other first light sources 1, no matter how many there are, only need to be compared with the color signal of the second light source 2. By synchronizing the color signal of the second light source 2, dynamic color synchronization among multiple light sources can be achieved.

[0066] Furthermore, because each RGB sensor 3 has a transmission limit, it is not possible to synchronously and stably transmit signals to each first light source 1 when there are many light sources that need dynamic color synchronization. Figure 4As shown, the control chip 11 of each first light source 1 can be connected to a separate RGB sensor 3, so that each first light source 1 can accurately and timely receive the color control signal of the second light source 2. In addition, the control chips 11 of the three first light sources 1 communicate with each other to compare and adjust the color control signals of the second light sources 2 received by each of them, that is, when the color control signals of the second light sources 2 received by each of them are different, a compromise adjustment is made to further ensure the accuracy of color dynamic synchronization. Figure 4 When the duty cycle differences found by the control chip 11 of the three first light sources are 8%, 10%, and 12% respectively, a compromise correction scheme is adopted, that is, the duty cycle difference is 10% for correction adjustment.

[0067] In addition, the connection structure between the RGB sensor 3 and the first light source 1 only needs to enable each first light source 1 to accurately and timely receive the color control signal of the second light source 2 transmitted by the RGB sensor 3, and there are no other requirements. In practical applications, the cost and the requirements of dynamic color synchronization can be considered, such as each RGB sensor 3 is connected to two first light sources 1, each RGB sensor 3 is connected to three first light sources 1, etc.

[0068] Embodiment 4

[0069] like Figure 2 , Figure 3 , Figure 4 As shown, in the fourth embodiment of the present invention, there is also provided an LED lamp system 4, comprising

[0070] At least two first light sources 1 and second light sources 2 controlled by different control sources;

[0071] The control chip 11 of the first light source executes a signal analysis step S2 to analyze and generate a color control signal of the second light source 2 associated with the color signal of the second light source 2; a signal comparison step S3 to compare with the color control signal of the first light source 1 to determine whether the difference between the two exceeds a threshold; a synchronization adjustment step S4 to adjust the color control signal of the first light source 1 to synchronize with the color control signal of the second light source 2 if the threshold is exceeded;

[0072] The control terminal (not shown) performs the color adjustment control step S0 and simultaneously outputs the same dimming control signal to the first light source 1 and the second light source 2. The form of the control terminal (not shown) is not limited, and the color adjustment can be controlled by a switch, a remote controller, a control program, a terminal APP, etc.

[0073] an RGB sensor 3, which is connected to one of the first light source 1 or the second light source 2 for communication and can detect the light color of the other of the first light source 1 or the second light source 2;

[0074] The LED lamp system 4 can run any one of the light source dynamic synchronization methods in the above embodiments. Through the above light source dynamic synchronization method, the occurrence of color adjustment asynchrony between light sources is avoided, and correction is performed when color asynchrony occurs.

[0075] Preferably, in this embodiment, the communication connection mode between the RGB sensor 3 used in the LED lamp system 4 and the first light source 1 or the second light source 2 is a wired connection and / or a wireless connection. Both the wired and wireless connection modes can timely and effectively transmit the relevant information of the light source. In practical applications, users can freely choose according to needs and circuit structure. Furthermore, the signal analysis step S2 and the signal comparison step S3 can also be completed by a separate chip connected to the RGB sensor 3, which can be selected according to the circuit structure connection.

[0076] References to "an embodiment" throughout this specification indicate that a particular feature, structure, function, or characteristic described in conjunction with that embodiment is included in at least one embodiment of the present invention. Thus, the phrase "in an embodiment" that appears in multiple places in the specification does not necessarily all refer to the same embodiment of the present invention. Moreover, the particular features, structures, functions, or characteristics may be combined in any suitable manner into one or more embodiments. For example, the first embodiment may be combined with the second embodiment as long as the two embodiments are not mutually exclusive.

[0077] So far, the technical solutions of the present invention have been described in conjunction with the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A light source dynamic synchronization method, used to synchronize the color adjustment of a first light source and a second light source controlled by different control sources, characterized in that: include A color adjustment control step S0, outputting the same color adjustment control signal to the first light source and the second light source at the same time, adjusting the color outputs of the first light source and the second light source, so that the first light source and the second light source are lit at the same time; Signal transmission step S1, an RGB sensor connected to the first light source for communication detects the light color of the second light source and outputs a color signal of the second light source; A signal analysis step S2, analyzing and generating a color control signal of the second light source associated with the color signal of the second light source according to the color signal of the second light source; A signal comparison step S3, comparing the color control signal of the second light source generated by the signal analysis step S2 with the color control signal of the first light source to determine whether the difference between the two exceeds a threshold; Synchronous adjustment step S4: if the threshold is exceeded, the color control signal of the first light source is adjusted to be synchronized with the color control signal of the second light source, so that the color change timing of the second light source is synchronized with that of the first light source.

2. The light source dynamic synchronization method according to claim 1, characterized in that: The first light source and the second light source are controlled by different control sources, but the control sources used by the first light source and the second light source are driving circuits and control chips of exactly the same type.

3. The light source dynamic synchronization method according to claim 1, characterized in that: The color control signal of the first light source or the second light source includes at least one of a duty cycle and a frequency of a pulse width modulation wave.

4. The light source dynamic synchronization method according to claim 2, characterized in that: The RGB sensor is communicatively connected to a control chip of the first light source.

5. The light source dynamic synchronization method according to claim 4, characterized in that: The RGB sensor detects the light color of the second light source once at regular intervals.

6. The light source dynamic synchronization method according to claim 4, characterized in that: The RGB sensor detects the light color of the second light source in a manual triggering manner.

7. The method for dynamic synchronization of light sources according to any one of claims 1 to 6, characterized in that: The number of the first light sources may be more than two.

8. The light source dynamic synchronization method according to claim 7, characterized in that: When the RGB sensor detects the light color of the second light source, the light of the first light source is shielded or the light receiving surface of the RGB sensor is directed toward the second light source.

9. An LED lighting system, comprising at least two first light sources and second light sources controlled by different control sources; The control terminal controls the dimming of the first light source and the second light source simultaneously; an RGB sensor, which is communicatively connected to one of the first light source or the second light source and can detect the light color of the other of the first light source or the second light source, It is characterized in that the LED lamp system can run the light source dynamic synchronization method as described in any one of claims 1-8.

10. The LED lamp system according to claim 9, characterized in that: The communication connection mode between the RGB sensor and the first light source or the second light source is a wired connection and / or a wireless connection.

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