Full-spectrum light source multipath adjustable driving method and system

Abstract

The invention discloses a full-spectrum light source multipath adjustable driving method and system, and relates to the technical field of light source control, and the method comprises the steps: collecting light emitting data of a light emitting unit under each color temperature in a specified color temperature interval, and storing the light emitting data in a data storage unit; the light emitting data comprises the duty ratio of energy output of each LED lamp under the same light emitting unit; setting target color temperature values for a plurality of time nodes in one day; setting the stepping length of color temperature adjustment; calculating a time difference value and a variable quantity of a target color temperature value for two adjacent time nodes; calculating an adjustment step number according to the variable quantity and the step length; calculating the interval time of color temperature adjustment according to the time difference value and the adjustment step number; acquiring a real-time color temperature value at two adjacent time nodes according to the initial target color temperature value, the interval time and the stepping length; matching light emitting data according to the real-time color temperature value; the driving unit adjusts the output of the light-emitting unit according to the light-emitting data. And finally, finer, more natural and smoother color temperature adjustment is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of light source control, and particularly to a multi-channel adjustable driving method and system for a full-spectrum light source. Background Art

[0002] With the increasing attention paid to the health attributes of the light environment by people, traditional static lighting solutions are difficult to meet the needs of human biological rhythm regulation in complex scenarios. Especially in environments with scarce natural light such as enclosed spaces, high-altitude areas, and underground working places, long-term single artificial lighting is likely to cause problems such as circadian rhythm disorders and abnormal melatonin secretion, significantly increasing health risks such as visual fatigue, sleep disorders, and depressive tendencies.

[0003] A full-spectrum light source is an artificial light source that can simulate the spectral characteristics of the sun. It can dynamically adjust the color temperature and brightness according to time changes. Its spectral range covers ultraviolet, visible, and infrared light, and the spectral distribution in the visible light part is similar to natural sunlight, which can provide an ideal lighting solution for indoor spaces with insufficient long-term lighting, high-altitude areas, and underground working environments. For example, the patent document with the publication number CN105848339B records a multi-primary-color LED lighting source intelligent dimming and color mixing method and device, which relates to an LED lighting source. The multi-primary-color LED intelligent lighting source is provided with a power supply module, a drive control module, and an LED lighting module; the power supply module is provided with an AC-DC unit and a DC-DC unit, and the power supply module is connected to the power supply port of the drive control module; the drive control module is provided with a broadband antenna, a multi-mode radio frequency processing unit, a data storage unit, a single-chip microcomputer, a constant current drive unit, a power supply port, a feedback port, and a drive bus port; the LED lighting module is provided with a distributed temperature sensor, a red LED, a green LED, a blue LED, and a white LED. It can achieve compatibility and support for multi-mode wireless networking technology. Based on the white LED, by matching three colors of LEDs, namely red, green, and blue, the color temperature of the final mixed light can be precisely adjusted, and it has a high color rendering property. It can achieve a high color rendering index of not less than 95. Its defect lies in that only four groups of fixed-wavelength LED light sources are configured, resulting in a significant discontinuity in the spectral continuity - blank areas are formed in the transition bands such as cyan, yellow, and magenta, making it difficult to construct a uniform full-spectrum distribution. During the dynamic adjustment process, due to the lack of intermediate spectral fulcrums, the computational complexity of the spectral fitting algorithm increases exponentially, the amount of computation is relatively large, and the color temperature and color rendering property are often difficult to optimize independently. Specifically, in the simulation of the day-night changes of natural light, the performance of the light source is not natural or smooth enough, affecting the use experience. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the present invention provides a multi-channel adjustable driving method and system for a full-spectrum light source, which can achieve more precise and natural and smooth color temperature adjustment, and obtain a spectral simulation effect closer to natural sunlight.

[0005] The technical solution of the present invention is implemented as follows:

[0006] A multi-channel adjustable driving method for a full-spectrum light source is applied to a driving unit to adjust the output of a light-emitting unit; the light-emitting unit includes 9 LED lights with different wavelengths; the method includes the following steps:

[0007] S1. Within a specified color temperature range, collect the light-emitting data of the light-emitting unit at each color temperature; the light-emitting data includes, under the same light-emitting unit, the duty cycle of the energy output of each LED light; save the light-emitting data to a data storage unit; the duty cycle is the ratio of the high-level time in a periodic signal to the entire cycle time.

[0008] S2. For multiple time nodes in a day, respectively set the target color temperature values; set the step length of color temperature adjustment;

[0009] S3. For two adjacent time nodes, calculate the time difference and the change amount of the target color temperature value;

[0010] S4. Calculate the number of adjustment steps within the time difference according to the change amount and the step length; calculate the interval time for adjusting the color temperature according to the time difference and the number of adjustment steps;

[0011] S5. At two adjacent time nodes, obtain the real-time color temperature value according to the initial target color temperature value, the interval time and the step length;

[0012] S6. In the data storage unit, match the light-emitting data according to the real-time color temperature value; the driving unit adjusts the output of the light-emitting unit according to the light-emitting data.

[0013] By pre-calculating and storing the duty cycles of various LED lights at different color temperatures, it is possible to efficiently and accurately match the color temperature adjustment parameters without performing complex operations in real time, effectively improving the efficiency of color temperature adjustment and achieving a higher-precision, smoother, and more realistic full-spectrum lighting effect.

[0014] As a further optimization of the above solution, S1 includes the following specific steps:

[0015] S1-1. At a specified color temperature, for one light-emitting unit, use a spectrometer to measure the energy ratio corresponding to different LED lights when setting different duty cycles, and obtain N groups of data; the energy ratio refers to the proportion of different wavelengths or light sources in the total output energy, which directly affects the spectral power distribution and light efficiency.

[0016] S1-2. Construct the fitting relationship of the duty cycle and the energy ratio, i.e., L = ∝D + β; where L represents the energy ratio; D represents the duty cycle; ∝ is the scaling factor; represents the fixed offset;

[0017] Calculate ∝ and β according to the fitting relationship and the N groups of data, i.e.:

[0018]

[0019] where L i and D i respectively represent the energy ratio and the duty cycle of the i-th data in the N groups of data;

[0020] S1-3. At a specified color temperature, for one of the light-emitting units, collect the energy ratio of each type of LED lamp, and calculate the duty cycle of each LED lamp according to the energy ratio and the fitting relationship; obtain the light-emitting data; save the light-emitting data to the data storage unit;

[0021] S1-4. Repeat S1-1 to S1-3 until the light-emitting data corresponding to each color temperature in the specified color temperature range is collected.

[0022] By using the fitting relationship to inversely deduce the duty cycle in combination with the spectral energy ratio, the human-setting error can be reduced, and a more accurate basis for color temperature adjustment can be provided.

[0023] As a further optimization of the above solution, in S3, the two time nodes are respectively denoted as T start and T end , and the corresponding target color temperature values are respectively C start and C end ; then the time difference is ΔT = T end -T start ; the change amount is ΔC = C end -C start ;

[0024] The step length is denoted as SL, and the interval time is denoted as Δt; then

[0025] The value range of the step length is 0.8K - 1.2K.

[0026] The step length value is the change amount of each color temperature adjustment, and K is the unit of color temperature. Further, the value of the step length is 1K. By setting the step length of the color temperature, the change of the color temperature can be made smoother, and the sudden change phenomenon cannot be perceived by the naked eye. By adopting piecewise linear interpolation, the biological rhythm change law can be matched, which conforms to the human perception law, avoids discomfort caused by sudden color temperature changes, and makes the light source closer to the natural sunlight change.

[0027] As a further optimization of the above solution, the light-emitting unit includes LED lights of 9 different wavelengths;

[0028] Each of the LED lights includes 1 and is connected in series or in parallel to form an LDE light group;

[0029] Or each of the LED lights includes multiple, and the same kind of LED lights are connected in series or in parallel to form an LED light group, and the LED light groups are connected in series or in parallel combinations.

[0030] The present invention also provides a multi-channel adjustable driving system for a full-spectrum light source, which applies the above-mentioned multi-channel adjustable driving method for a full-spectrum light source; it includes a terminal control module, a non-isolated buck module, a driving control module, a constant-current driving module and an output module;

[0031] The terminal control module is bidirectionally connected to the driving control module; the output end of the non-isolated buck module is connected to the input end of the driving control module; the output end of the driving control module is also connected to the constant-current driving module; the output end of the constant-current driving module is connected to the output module;

[0032] The terminal control module is used to collect the setting signals provided by the user, generate a color temperature adjustment signal, send it to the driving control module, and receive the feedback from the driving control module;

[0033] The non-isolated buck module is also connected to an external power supply and steps down the output voltage from the external power supply to a target voltage;

[0034] The driving control module converts the color temperature adjustment signal into a control signal and sends it to the constant-current driving module; the output module corresponds to the light-emitting unit or is connected to the light-emitting unit; the constant-current driving module provides different proportions of current for the LED lights of different wavelengths according to the control signal.

[0035] As a further optimization of the above solution, the terminal control module includes an application program, a host computer and the data storage unit;

[0036] The application program includes a biological rhythm mode configuration function; the biological rhythm mode configuration function is used to execute step S2 to step S4 and send a data packet to the driving control module; the data packet includes the target color temperature value, the step length and the interval time; the color temperature adjustment signal includes the data packet;

[0037] The host computer is used to execute step S1.

[0038] As a further optimization of the above solution, the driving control module includes a first communication unit, a second communication unit, a data processing unit and a single-chip microcomputer;

[0039] The first communication unit is communicatively connected to the application program; the first communication unit is connected to the data processing unit; the second communication unit is communicatively connected to the host computer; the data processing unit and the second communication unit are respectively connected to the single-chip microcomputer; the single-chip microcomputer is connected to the constant current driving module;

[0040] The first communication unit receives the data packet; the data processing unit processes the data packet. The data processing includes startup processing. Specifically, an external crystal oscillator is used for startup. The data processing also includes high-frequency noise filtering processing to stabilize and clean the voltage and broaden the frequency range of filtering. The single-chip microcomputer executes step S5 and step S6 according to the data packet, matches the light-emitting data through the host computer, and receives the light-emitting data through the second communication unit; the color temperature adjustment signal includes the light-emitting data;

[0041] The single-chip microcomputer outputs a PWM signal to the constant current driving module according to the light-emitting data; the PWM signal is the control signal.

[0042] As a further optimization of the above solution, the first communication unit is a radio frequency antenna; the data processing unit is a radio frequency processing chip; the second communication unit is a USB conversion chip.

[0043] As a further optimization of the above solution, the constant current driving chip outputs current to the output module according to the PWM signal.

[0044] As a further optimization of the above solution, the frequency range of the PWM signal is 1 kHz - 4 kHz.

[0045] Compared with the prior art, the present invention has the following beneficial effects:

[0046] (1) By pre-calculating and storing the duty ratios of various LED lamps at different color temperatures, the present invention can efficiently and accurately match the color temperature adjustment parameters without performing complex operations in real time, effectively improving the efficiency of color temperature adjustment and achieving a higher-precision, smoother, and more realistic full-spectrum lighting effect. Specifically, the dimming depth can reach 0.1%, the linearity is excellent, a wider dimming range can be accommodated, and the change is smooth without a stepped feeling during the process of adjusting the brightness and color temperature. It has the advantages of high luminous efficiency and flexible adjustment, avoiding or solving the problems such as low quantum conversion efficiency of phosphors, luminous thermal quenching, poor water resistance, and poor thermal stability existing in the prior art.

[0047] (2) By using the application and the host computer to control the nine-way adjustable driving system of the full-spectrum light source to simulate the change of natural light, it can not only provide personalized and flexible lighting settings, achieve high-precision continuous adjustment of the light source color temperature between 2700K and 6500K, but also realize automatic adjustment and remote control, improving the convenience and comfort of users' lives.

[0048] (3) By simulating the light change of real sunlight from morning to evening, it provides an illumination experience close to natural light for people who have been in an environment with insufficient light for a long time (such as indoor spaces, high-altitude areas, and underground working places). This lighting method can not only effectively regulate the human circadian rhythm, but also help relieve problems such as seasonal depression caused by insufficient light, thus significantly improving the physical and mental health and quality of life of users.

[0049] (4) The color temperature adjustment scheme involved in the present invention is not limited to LED lights of 9 wavelengths, but can also be a quantity within 9. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 is a schematic flow chart of a multi-way adjustable driving method for a full-spectrum light source provided by an embodiment of the present invention;

[0051] Figure 2 is a schematic diagram of module connections of a multi-way adjustable driving system for a full-spectrum light source provided by an embodiment of the present invention;

[0052] Figure 3 is a schematic circuit diagram of a non-isolated buck module provided by an embodiment of the present invention;

[0053] Figure 4 is a schematic circuit connection diagram of a multi-way adjustable driving system for a full-spectrum light source provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0054] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0055] As Figure 1 shown, this embodiment provides a multi-way adjustable driving method for a full-spectrum light source, which is applied to a driving unit to adjust the output of a light-emitting unit.

[0056] The light-emitting unit includes LED lights of 9 different wavelengths; the wavelengths and half-width heights of the 9 LED lamp beads are respectively:

[0057] 425 nm, 20 nm, corresponding to violet light;

[0058] 450 nm, 25 nm, corresponding to indigo blue light;

[0059] 480 nm, 30 nm, corresponding to blue light;

[0060] 518 nm, 102 nm, corresponding to green light;

[0061] 537 nm, 102.3 nm, corresponding to yellow-green light;

[0062] 555 nm, 114.5 nm, corresponding to yellow-green light;

[0063] 610 nm, 60 nm, corresponding to orange light;

[0064] 655 nm, 76 nm, corresponding to red light;

[0065] 705 nm, 84 nm, corresponding to red light.

[0066] In this embodiment, each type of LED lamp includes 1 piece, and 9 LED lamp beads are connected in parallel to form a light-emitting unit.

[0067] The method includes the following steps:

[0068] S1. Within a specified color temperature range, collect the light-emitting data of the light-emitting unit at each color temperature; the light-emitting data includes, for the same light-emitting unit, the duty cycle of the energy output of each type of LED lamp; save the light-emitting data to the data storage unit; the duty cycle is the ratio of the high-level time in a periodic signal to the entire cycle time.

[0069] The specific steps of step S1 are as follows:

[0070] S1-1. At a specified color temperature, for a light-emitting unit, use a spectrometer (Yuanfang SPIC-300BW) to measure the energy ratio corresponding to different LED lamps when setting different duty cycles, and obtain N groups of data (specifically, 1000 groups of data can be collected, that is, N = 1000); the energy ratio refers to the proportion of different wavelengths or light sources in the total output energy, which directly affects the spectral power distribution and luminous efficiency.

[0071] S1-2. Construct a fitting relationship between the duty cycle and the energy ratio, that is, L = ∝D + β; where L represents the energy ratio; D represents the duty cycle; ∝ is the scaling factor; represents the fixed offset;

[0072] Calculate ∝ and β according to the fitting relationship and N groups of data, that is:

[0073]

[0074] Among them, L i and D i respectively represent the energy ratio and duty cycle of the i-th data in N groups of data;

[0075] For one light-emitting unit, S(λ) represents its overall spectral power distribution, and S n (λ) represents the spectral power of the LED lamp beads of the n-th (n ranges from 1 to 9) wavelength. L n is the energy ratio corresponding to S n (λ), then:

[0076] S1-3. At a specified color temperature, for one light-emitting unit, collect the energy ratio of each type of LED lamp.

[0077] Specifically, it is collected that when the color temperature is 2705.438K, the energy ratios of 9 LEDs are 1:25:1:87:50:200:174:200:592 respectively. Substituting into the aforementioned fitting formula, we can obtain:

[0078]

[0079] Based on the fitting formula, the duty cycle corresponding to each LED lamp bead can be calculated by backtracking.

[0080] Calculate the duty cycle of each LED lamp according to the energy ratio and the fitting relationship; obtain the light-emitting data; save the light-emitting data to the data storage unit;

[0081] S1-4. Repeat S1-1 to S1-3 until the light-emitting data corresponding to each color temperature within the specified color temperature range is collected.

[0082] S2. For multiple time nodes in a day, set the target color temperature values respectively; in this embodiment, the set time nodes include sunrise (6:00), noon (12:00), sunset (17:30), and bedtime (23:30), and the corresponding target color temperature values are 2700K (warm white light), 5535K (cool white light), 4000K (neutral light), and 3000K (warm yellow light) respectively.

[0083] Set the step length of color temperature adjustment; in this embodiment, the step length is denoted as SL = 1K.

[0084] S3. For two adjacent time nodes, calculate the time difference and the change amount of the target color temperature value;

[0085] S4. Calculate the number of adjustment steps within the time difference according to the change amount and the step length; calculate the interval time for adjusting the color temperature according to the time difference and the number of adjustment steps;

[0086] Specifically, the two time nodes are 10:00 to 12:00 respectively, and the time difference is ΔT = 7200 seconds. The corresponding color temperatures are C start = 5021K and C end = 5535K, then the change in color temperature is ΔC = 5535K - 5021K = 334K. The calculated interval time is That is, the color temperature increases by 1K every 21.6s, ensuring smooth color temperature without sudden changes.

[0087] S5. At two adjacent time nodes, obtain the real-time color temperature value according to the initial target color temperature value, interval time, and step length;

[0088] S6. In the data storage unit, match the light emission data according to the real-time color temperature value; the drive unit adjusts the output of the light emitting unit according to the light emission data.

[0089] By pre-calculating and storing the duty ratios of various LED lights at different color temperatures, it is possible to efficiently and accurately match the color temperature adjustment parameters without the need for complex real-time calculations, effectively improving the efficiency of color temperature adjustment and achieving a higher-precision, smoother, and more realistic full-spectrum lighting effect.

[0090] As Figures 2-4 shown, this embodiment also provides a full-spectrum light source multi-channel adjustable drive system, which applies the above-mentioned full-spectrum light source multi-channel adjustable drive method; it includes a terminal control module, a non-isolated buck module, a drive control module, a constant current drive module, and an output module;

[0091] The terminal control module is bidirectionally connected to the drive control module; the output end of the non-isolated buck module is connected to the input end of the drive control module; the output end of the drive control module is also connected to the constant current drive module; the output end of the constant current drive module is connected to the output module;

[0092] The terminal control module is used to collect the setting signals provided by the user, generate a color temperature adjustment signal, send it to the drive control module, and receive the feedback from the drive control module; in this embodiment, the terminal control module includes an application program, a host computer, and a data storage unit;

[0093] The application program includes a biological rhythm mode configuration function; the biological rhythm mode configuration function is used to execute steps S2 to S4 and send a data packet to the drive control module; the data packet includes the target color temperature value, step length, and interval time; the color temperature adjustment signal includes the data packet;

[0094] The host computer is used to execute step S1.

[0095] The non-isolated buck module is also connected to an external power supply and steps down the output voltage (48V) from the external power supply to the target voltage (3.3V); the non-isolated buck module includes a buck chip U1, a buck chip U2, a diode D1, an electrolytic capacitor EC1, a diode D2, a capacitor C1, a capacitor C2, a resistor R2, a capacitor C3, a diode D3, and a capacitor C4.

[0096] Among them, the first terminal DRAIN of the buck chip U1 is connected to the output terminal of the diode D1 and the input terminal of the electrolytic capacitor EC1. The second terminal BP of the buck chip U1 is connected to the first terminal of the capacitor C1 and the output terminal of the diode D2. The third terminal S of the buck chip U1 is connected to the resistor R1 and outputs a 5V voltage.

[0097] The first terminal GND of the buck chip U2 is connected to the ground terminal, and the second terminal VIN of the buck chip U2 is connected to the second terminal of the inductor L1, the first terminal of the capacitor C2, the first terminal of the resistor R2, the input terminal of the diode D2, and the first terminal of the capacitor C3. The third terminal VOUT of the buck chip U2 outputs the target voltage value of 3.3V and is connected to the first terminal of the capacitor C4.

[0098] The input terminal of the diode D1 is connected to the external power supply, and the output terminal is connected to the first terminal DRAIN of the buck chip U1 and the input terminal of the electrolytic capacitor EC1.

[0099] The input terminal of the diode D2 is connected to the second terminal VIN of the buck chip U2, the second terminal of the inductor L1, the first terminal of the capacitor C2, the first terminal of the resistor R2, and the first terminal of the capacitor C3. The output terminal is connected to the second terminal BP of the buck chip U1 and the first terminal of the capacitor C1.

[0100] The input terminal of the diode D3 is connected to the other end of the capacitor C1, the second terminal of the resistor R1, and the first terminal of the inductor L1.

[0101] The drive control module converts the color temperature adjustment signal into a control signal and sends it to the constant current drive module; in this embodiment, the drive control module includes a first communication unit, a second communication unit, a data processing unit, and a single-chip microcomputer; specifically, the first communication unit is a radio frequency antenna; the data processing unit is a radio frequency processing chip, using YC1121G; the second communication unit is a USB conversion chip, using FT232RL. The single-chip microcomputer uses PY32F030.

[0102] The first communication unit is communicatively connected to the application program; the first communication unit is connected to the data processing unit; the second communication unit is communicatively connected to the host computer; the data processing unit and the second communication unit are respectively connected to the single-chip microcomputer; the single-chip microcomputer is connected to the constant current drive module;

[0103] The first communication unit receives data packets; the data processing unit processes the data packets; the data processing includes startup processing. Specifically, an external crystal oscillator (24M crystal oscillator) is used for startup; the data processing also includes high-frequency noise filtering processing to stabilize and clean the voltage and broaden the frequency range of filtering; the single-chip microcomputer executes steps S5 and S6 according to the data packets, matches the light-emitting data through the host computer, and receives the light-emitting data through the second communication unit; the color temperature adjustment signal includes the light-emitting data.

[0104] The single-chip microcomputer outputs a PWM signal to the constant current drive module according to the light-emitting data; the PWM signal is the control signal. In this embodiment, the frequency range of the PWM signal is 1 kHz - 4 kHz.

[0105] The output module corresponds to the light-emitting unit; the constant current drive module provides different proportions of current for LED lights of different wavelengths according to the control signal. In this embodiment, the constant current drive chip uses OC5220 and is connected to 9 LED lamp beads through 9 ports respectively, that is, "linear constant current drive 1 corresponds to LED1, linear constant current drive 2 corresponds to LED2..."; the constant current drive module outputs current to the output module according to the PWM signal.

[0106] According to the disclosure and teachings of the above specification, those skilled in the art to which the present invention pertains can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A full-spectrum light source multi-channel adjustable driving method, applied to a driving unit to adjust the output of a light-emitting unit; the light-emitting unit includes 9 LED lights with different wavelengths; characterized in that: The following steps are involved: S1. Collecting the luminous data of the luminous unit at each color temperature within a specified color temperature range; the luminous data includes the duty cycle of the energy output of each LED lamp under the same luminous unit; storing the luminescence data in a data storage unit; S2. For multiple time points in a day, set the target color temperature value respectively; set the step length of color temperature adjustment; S3. For two adjacent time nodes, calculate the time difference and the change of the target color temperature value; S4, calculating the number of adjustment steps within the time difference according to the change amount and the step length; calculating the interval time for adjusting the color temperature according to the time difference and the adjustment step number; S5. At two adjacent time nodes, obtaining a real-time color temperature value according to the initial target color temperature value, the interval time and the step length; S6. In the data storage unit, the light emitting data is matched according to the real-time color temperature value; and the driving unit adjusts the output of the light emitting unit according to the light emitting data.

2. A full-spectrum light source multi-channel adjustable driving method according to claim 1, characterized in that: The S1 comprises the following specific steps: S1-1. Under a specified color temperature, for one light-emitting unit, a spectrometer is used to measure energy ratios corresponding to different LED lamps when different duty cycles are set, to obtain N groups of data; S1-2, constructing a fitting relationship between the duty cycle and the energy ratio, that is, L=∝D+β; wherein L represents the energy ratio; D represents the duty cycle; ∝ is a scaling factor; represents a fixed offset; ∝ and β are calculated according to the fitting relationship and the N groups of data, namely: Among them, L i and D i Respectively represent the energy proportion and duty cycle of the i-th data in N groups of data; S1-3. Under the specified color temperature, for one of the light-emitting units, collect the energy ratio of each of the LED lamps, calculate the duty cycle of each LED lamp according to the energy ratio and the fitting relationship; obtain the light-emitting data; and save the light-emitting data to a data storage unit; S1-4, repeat S1-1 to S1-3 until the luminous data corresponding to each color temperature in the specified color temperature range is collected.

3. The method for driving a full-spectrum light source with multi-channel adjustable drive according to claim 1, characterized in that: In S3, the two time nodes are respectively denoted as T start and T end , the corresponding target color temperature values ​​are C start and C end ; Then the time difference is ΔT = T end -T start ; The change is ΔC = C end -C start ; The step length is recorded as SL, and the interval time is recorded as Δt; then The step length ranges from 800K to 1200K.

4. The method for driving a full-spectrum light source with multi-channel adjustable drive according to claim 1, characterized in that: The light-emitting unit includes 9 LED lights with different wavelengths; Each of the LED lamps comprises one each, and are connected in series or in parallel to form an LED lamp group; Or each type of LED lamp comprises a plurality of LED lamps, and the same type of LED lamps are connected in series or in parallel to form an LED lamp group, and the LED lamp groups are connected in series or in parallel.

5. A full-spectrum light source multi-channel adjustable driving system, using a full-spectrum light source multi-channel adjustable driving method as claimed in any one of claims 1 to 4; characterized in that: It includes a terminal control module, a non-isolated buck module, a drive control module, a constant current drive module and an output module; The terminal control module is bidirectionally connected to the drive control module; the output end of the non-isolated buck module is connected to the input end of the drive control module; the output end of the drive control module is also connected to the constant current drive module; the output end of the constant current drive module is connected to the output module; The terminal control module is used to collect the setting signal provided by the user, generate a color temperature adjustment signal, send it to the drive control module, and receive feedback from the drive control module; The non-isolated buck module is also connected to an external power source, and steps down the output voltage from the external power source to a target voltage; The drive control module converts the color temperature adjustment signal into a control signal and sends it to the constant current drive module; the output module corresponds to the light-emitting unit, or is connected to the light-emitting unit; the constant current drive module provides different proportions of current for the LED lights of different wavelengths according to the control signal.

6. A full-spectrum light source multi-channel adjustable driving system according to claim 5, characterized in that: The terminal control module includes an application program, a host computer and the data storage unit; The application includes a biorhythm mode configuration function; the biorhythm mode configuration function is used to execute steps S2 to S4, and send a data packet to the drive control module; the data packet includes the target color temperature value, the step length and the interval time; the color temperature adjustment signal includes the data packet; The host computer is used to execute step S1.

7. A full-spectrum light source multi-channel adjustable driving system according to claim 6, characterized in that: The drive control module includes a first communication unit, a second communication unit, a data processing unit and a single chip microcomputer; The first communication unit is connected to the application program for communication; the first communication unit is connected to the data processing unit; the second communication unit is connected to the host computer for communication; the data processing unit and the second communication unit are connected to the single-chip microcomputer respectively; the single-chip microcomputer is connected to the constant current drive module; The first communication unit receives the data packet; the data processing unit performs data processing on the data packet; the data processing includes oscillation starting processing and high-frequency noise filtering processing; the single-chip microcomputer performs steps S5 and S6 according to the data packet, matches the luminous data through the host computer, and receives the luminous data through the second communication unit; the color temperature adjustment signal includes the luminous data; The single chip microcomputer outputs a PWM signal to the constant current driving module according to the light emitting data; the PWM signal is the control signal.

8. The full-spectrum light source multi-channel adjustable driving system according to claim 7, characterized in that: The first communication unit is a radio frequency antenna; the data processing unit is a radio frequency processing chip; and the second communication unit is a USB conversion chip.

9. The full-spectrum light source multi-channel adjustable driving system according to claim 7, characterized in that: The constant current driving chip outputs current to the output module according to the PWM signal.

10. The full-spectrum light source multi-channel adjustable driving system according to claim 7, characterized in that: The frequency range of the PWM signal is 1kHz-4kHz.

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