CN110062506B - Solar simulation device and driving method thereof - Google Patents
Solar simulation device and driving method thereof Download PDFInfo
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- CN110062506B CN110062506B CN201910438476.6A CN201910438476A CN110062506B CN 110062506 B CN110062506 B CN 110062506B CN 201910438476 A CN201910438476 A CN 201910438476A CN 110062506 B CN110062506 B CN 110062506B
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- 230000000630 rising effect Effects 0.000 abstract description 10
- 238000005286 illumination Methods 0.000 abstract description 6
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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Abstract
The invention discloses a sunshine simulation device and a driving method thereof, wherein the sunshine simulation device comprises a first light source, a second light source and a driving control unit electrically connected with the first light source and the second light source, the color temperature of the first light source is smaller than the color temperature of the second light source; the driving control unit is configured to control the brightness of the first light source to rise from a first brightness to a second brightness in a first preset time period according to the rise time of day; in a second preset time period, controlling the brightness of the second light source to be increased from the third brightness to the fourth brightness; wherein the second preset time period follows the first preset time period. Can simulate the daily rising process with high efficiency and accuracy, simulate the vision and illumination change in the natural daily rising process more accurately, thereby providing a similar rising environment for the environment incapable of enjoying the sunlight irradiation and reducing the mental stress and the disease occurrence risk of people living or working in the environment incapable of enjoying the sunlight irradiation.
Description
Technical Field
The embodiment of the invention relates to a sunlight simulation technology, in particular to a sunlight simulation device and a driving method thereof.
Background
Sunlight has an important role in human life, and research shows that workers in offices that cannot receive sunlight are easily frustrated and ill compared to offices that can receive sunlight. The mental stress of the worker who does not feel the sun increases.
However, due to the limitations of field conditions, not all offices can receive sunlight, and the prior art cannot set an environment simulating sunlight for staff in offices that cannot receive sunlight.
Disclosure of Invention
The invention provides a sunlight simulation device and a driving method thereof, which are used for simulating the sunset, so as to provide experience similar to the sunset for environments incapable of enjoying sunlight irradiation.
In a first aspect, an embodiment of the present invention provides a solar radiation simulation device, including a first light source, a second light source, and a driving control unit electrically connected to the first light source and the second light source, where a color temperature of the first light source is smaller than a color temperature of the second light source;
the driving control unit is configured to control the brightness of the first light source to rise from a first brightness to a second brightness in a first preset time period according to the rise time of day; controlling the brightness of the second light source to be increased from the third brightness to the fourth brightness in a second preset time period; wherein the second preset time period follows the first preset time period.
Optionally, the driving control unit is further configured to control the first light source to maintain the second brightness at the end of the first preset time period, and control the second light source to maintain the fourth brightness at the end of the second preset time period; and according to the sunset time, controlling the brightness of the first light source to gradually decrease from the second brightness and controlling the brightness of the second light source to gradually decrease from the fourth brightness in a second preset time period.
Alternatively to this, the method may comprise,
the driving control unit comprises a control module, a first output interface module, a second output interface module and a power supply module;
the power input end of the first output interface module is electrically connected with the power module, the control end of the first output interface module is electrically connected with the control module, and the output end of the first output interface module is electrically connected with the first light source;
the power input end of the second output interface module is electrically connected with the power module, the control end of the second output interface module is electrically connected with the control module, and the output end of the second output interface module is electrically connected with the second light source;
the control module is configured to control the light emission brightness of the first light source through the first output interface module,
and controlling the light-emitting brightness of the second light source through the second output interface module.
Optionally, the wireless module is further included;
the wireless module is electrically connected with the control module;
the power module comprises an input end, a first output end and a second output end;
the output voltage of the first output end of the power supply module is larger than that of the second output end; the first output end is respectively and electrically connected with the power input ends of the first output interface module and the second output interface module; the second output end of the power supply module is electrically connected with the power supply end of the control module.
Optionally, the first output interface module includes a first resistor, a first transistor, a second resistor, a first inductor, a first diode, a first capacitor, a second capacitor, and a third resistor;
a first electrode of the first transistor is electrically connected with a power input end of the first output interface module, and a control electrode of the first transistor is electrically connected with a control end of the first output interface module; the first end of the first resistor is electrically connected with the first pole of the first transistor, the second end of the first resistor is electrically connected with the control pole of the first transistor, the second pole of the first transistor is electrically connected with the first end of the first inductor and the cathode of the first diode respectively through the second resistor, the second end of the first inductor is electrically connected with the output end of the first output interface circuit, the anode of the first diode is grounded, the first end of the first capacitor is electrically connected with the second end of the first inductor, and the second end of the first capacitor is grounded; the first end of the second capacitor is electrically connected with the second end of the first inductor, and the second end of the second capacitor is grounded; the first end of the third resistor is electrically connected with the first end of the first inductor, and the second end of the third resistor is grounded.
Optionally, the first inverter and the fourth resistor are further included;
the control electrode of the first transistor is electrically connected with the control end of the first output interface module through the first inverter, the input end of the first inverter is electrically connected with the control end of the first output interface module, and the output end of the first inverter is electrically connected with the control electrode of the first transistor; the first end of the fourth resistor is electrically connected with the input end of the first inverter, and the second end of the fourth resistor is grounded.
Optionally, the second output interface module includes a fifth resistor, a second transistor, a sixth resistor, a second inductor, a third capacitor, a fourth capacitor, a seventh resistor, and a second diode;
the first electrode of the second transistor is electrically connected with the power input end of the second output interface module, the control electrode of the second transistor is electrically connected with the control end of the second output interface module, the first end of the fifth resistor is electrically connected with the first electrode of the second transistor, the second end of the fifth resistor is electrically connected with the control electrode of the second transistor, the second electrode of the second transistor is respectively electrically connected with the first end of the second inductor and the cathode of the second diode through the sixth resistor, the second end of the second inductor is electrically connected with the output end of the second output interface circuit, and the anode of the second diode is grounded; the first end of the third capacitor is electrically connected with the second end of the second inductor, and the second end of the third capacitor is grounded; the first end of the fourth capacitor is electrically connected with the second end of the second inductor, and the second end of the fourth capacitor is grounded; the first end of the seventh resistor is electrically connected with the second end of the second inductor, and the second end of the seventh resistor is grounded.
Optionally, the circuit further comprises a second inverter, a third inverter and an eighth resistor;
the control electrode of the second transistor is electrically connected with the control end of the second output interface module through the third inverter and the second inverter, the input end of the second inverter is electrically connected with the control end of the second output interface module, the output end of the second inverter is electrically connected with the input end of the third inverter, and the output end of the third inverter is electrically connected with the control electrode of the second transistor; the first end of the eighth resistor is electrically connected with the input end of the second inverter, and the second end of the eighth resistor is electrically connected with the first pole of the second transistor.
Optionally, the first light source includes at least two first light strings connected in parallel, the first light strings include at least two first light emitting diodes and a third transistor, the third transistor is connected in series with the first light emitting diodes, and a color temperature range of the first light emitting diodes is 2500K-3500K;
the second light source comprises at least two second light strings connected in parallel, each second light string comprises at least two second light emitting diodes and a fourth transistor, each fourth transistor is connected with each second light emitting diode in series, and the color temperature range of each second light emitting diode is 8000K-12000K.
In a second aspect, an embodiment of the present invention further provides a driving method of a solar radiation simulation device, where the solar radiation simulation device includes a first light source, a second light source, and a driving control unit electrically connected to the first light source and the second light source, and a color temperature of the first light source is smaller than a color temperature of the second light source;
the driving method includes:
the driving control unit controls the brightness of the first light source to rise from the first brightness to the second brightness in a first preset time period according to the daily rise time; controlling the brightness of the second light source to be increased from the third brightness to the fourth brightness in a second preset time period; wherein the second preset time period follows the first preset time period.
Optionally, the method further comprises: the driving control unit controls the first light source to maintain the second brightness at the end of the first preset time period, and controls the second light source to maintain the fourth brightness at the end of the second preset time period; the driving control unit controls the brightness of the first light source to gradually decrease from the second brightness and controls the brightness of the second light source to gradually decrease from the fourth brightness in a second preset time period according to the sunset time.
Optionally, the brightness change level of the brightness increasing process of the first light source and the second light source is M level, and M is an integer greater than or equal to 100;
the driving control unit controls the brightness of the first light source to rise from a first brightness to a second brightness and controls the brightness of the second light source to rise from a third brightness to a fourth brightness in a first preset period according to a daily rise time, and the driving control unit comprises:
the drive control unit controls the brightness of the first light source according to the brightness the level of change of the M level is gradually increased from 0 brightness to 100% brightness;
the driving control unit controls the brightness of the second light source to be gradually increased from 0 brightness to 100% brightness according to the change level of M levels;
the brightness variation level of the brightness reduction process of the first light source and the second light source is N, N is an integer greater than or equal to 100;
the driving control unit controls the brightness of the first light source to gradually decrease from the second brightness and controls the brightness of the second light source to gradually decrease from the fourth brightness in a second preset period according to sunset time, and the driving control unit comprises:
the driving control unit controls the brightness of the first light source and the second light source to be gradually reduced from 100% brightness according to the change level of N levels.
According to the solar simulation device, the solar simulation device comprising the first light source, the second light source and the driving control unit is adopted, the solar rising process is efficiently and accurately simulated, and the vision and illumination changes in the natural solar rising process are more accurately simulated, so that a solar rising-like environment is provided for an environment incapable of enjoying solar irradiation, and the mental stress and disease occurrence risk of people living or working in the environment incapable of enjoying solar irradiation are reduced.
Drawings
Fig. 1 is a schematic structural diagram of a solar radiation simulation device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another solar radiation simulation device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another solar radiation simulation device according to an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a first output interface module according to an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of a first output interface module according to an embodiment of the present invention;
fig. 6 is a schematic circuit diagram of a second output interface module according to an embodiment of the present invention;
fig. 7 is a schematic circuit diagram of a second output interface module according to an embodiment of the present invention;
fig. 8 is a schematic circuit diagram of a first light source according to an embodiment of the present invention;
fig. 9 is a schematic circuit diagram of a second light source according to an embodiment of the present invention;
fig. 10 is a flowchart of a driving method of a solar radiation simulation device according to an embodiment of the present invention;
fig. 11 is a flowchart of a driving method of a solar simulator according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
Examples
Referring to fig. 1, fig. 1 is a schematic structural diagram of a solar radiation simulation device according to an embodiment of the present invention, where the solar radiation simulation device includes a first light source 101, a second light source 102, and a driving control unit 103 electrically connected to the first light source 101 and the second light source 102, and a color temperature of the first light source 101 is less than a color temperature of the second light source 102;
the drive control unit 103 is configured to control the luminance of the first light source 101 to rise from the first luminance to the second luminance for a first preset period of time according to the rise time of day; controlling the brightness of the second light source 102 to rise from the third brightness to the fourth brightness in a second preset period; wherein, the second preset time period is after the first preset time interval.
Specifically, the first light source 101 and the second light source 102 may both adopt an LED (Light Emitting Diode ) array structure, the driving control unit 103 controls the light emitting states of the first light source 101 and the second light source 102, the time of day rise may be freely set according to the selection of the user, and the time of day rise may also be automatically calculated according to the local longitude and latitude information; when the set time of day rises, the driving control unit 103 controls the light source with low color temperature in the first preset time period, that is, the light emitting brightness of the first light source 101 increases from the first brightness to the second brightness; the brightness of the first light source 101 is kept all the time after reaching the second brightness, and meanwhile, the driving control unit 103 controls the brightness of the second light source 102 to rise from the third brightness to the fourth brightness in the second time period, and is kept after reaching the fourth brightness, so that the effect of simulating the rising of the sun is achieved; the color temperature of the first light source 101 is lower than that of the second light source 102, so that the change of vision and illumination in the rising process can be simulated more accurately.
Illustratively, after the day-up time is reached, the drive control unit 103 controls the luminance of the first light source 101 to rise from 0 luminance to 100% luminance within 15 minutes, and then the drive control unit 103 controls the luminance of the second light source 102 to rise from 0 luminance to 100% luminance within 15 minutes; wherein, the brightness of the first light source 101 and the second light source 102 is maintained after the brightness reaches 100%; the driving control unit 103 may divide the luminance of the light emission into M levels according to the light emission characteristics of the first light source 101 and the second light source 102, for example, set M to 1000, and make the light characteristics of the first light source 101 and the second light source 102 into a table, and may control the luminance of the first light source 101 and the second light source 102 according to a meter reading manner during the light emission process, so that the light emission has no flickering feeling and a high fluency feeling.
According to the technical scheme, the sunshine simulator comprising the first light source, the second light source and the driving control unit is adopted, the sunshine simulator is used for simulating the sunshine process efficiently and accurately, the vision and illumination change in the natural sunshine process are simulated more accurately, the sunshine-like experience is provided for the environment incapable of enjoying sunshine, and the mental pressure and disease occurrence risk of people living or working in the environment incapable of enjoying sunshine are reduced.
Optionally, the driving control unit 101 is further configured to control the first light source 101 to maintain the second brightness at the end of the first preset time period, and control the second light source 102 to maintain the fourth brightness at the end of the second preset time period; and according to the sunset time, the brightness of the first light source 101 is controlled to gradually decrease from the second brightness, and the brightness of the second light source 102 is controlled to gradually decrease from the fourth brightness in the second preset time period.
Specifically, the sunset time can be set by a user or automatically calculated according to local longitude and latitude information, when the set sunset time is reached, the driving control unit 103 controls the brightness of the first light source 101 to gradually decrease from the second brightness within a second preset period of time, and simultaneously controls the brightness of the second light source 102 to gradually decrease from the fourth brightness within the second preset period of time, thereby completing the simulation of the sunset process.
For example, the second preset period of time may be 15 minutes, after the set sunset time is reached, the brightness of the first light source 101 and the second light source 102 gradually decreases from 100% brightness to 0 brightness within 15 minutes, the driving control unit 103 may divide the brightness of the light emission into N levels according to the light emission characteristics of the first light source 101 and the second light source 102, for example, set N to 1000, and make the light characteristics of the first light source 101 and the second light source 102 into a table, and control the brightness of the first light source 101 and the second light source 102 according to a table reading manner during the light emission process, so that the light emission has no flicker and a high smooth feeling.
According to the technical scheme, the solar simulator is configured to simulate the sunset process, so that the operation of the solar simulator is closer to the rising and falling process of the sun, and the mental stress and disease occurrence risk of people living or working in an environment incapable of enjoying solar irradiation are further reduced.
Optionally, referring to fig. 2, fig. 2 is a schematic structural diagram of still another solar radiation simulation device according to an embodiment of the present invention, where the driving control module 103 includes a control module 1031, a first output interface module 1032, a second output interface module 1033, and a power module 1034;
the power input end of the first output interface module 1032 is electrically connected with the power module 1034, the control end of the first output interface module 1032 is electrically connected with the control module 1031, and the output end of the first output interface module 1032 is electrically connected with the first light source 101;
the power input end of the second output interface module 1033 is electrically connected with the power module 1034, the control end of the second output interface module 1033 is electrically connected with the control module 1031, and the output end of the second output interface module 1033 is electrically connected with the second light source 102;
the control module 1031 is configured to control the light emission luminance of the first light source 101 through the first output interface module 1032,
and controlling the light emitting brightness of the second light source 102 through the second output interface module 1033.
Specifically, the power module 1034 provides power for the control module 1031, the first output interface module 1032 and the second output interface module 1033, and the first output interface module 1031 converts an electrical signal of the power module 1034 into an electrical signal matched with the working state of the first light source 101 according to the control of the control module 1031; the second output interface module 1033 converts the electric signal of the power supply module 1034 into an electric signal matched with the working state of the second light source 102 according to the control of the control module 1031; the first light source 101 and the second light source 102 emit light according to a set mode under the control of the control module 1031, so as to achieve the effect of simulating sunset.
Optionally, referring to fig. 3, fig. 3 is a schematic structural diagram of still another solar radiation simulation device according to an embodiment of the present invention, and further includes a wireless module 201, where the wireless module 201 is electrically connected to a control module 1031;
the power module 1034 includes an input, a first output, and a second output;
the output voltage of the first output terminal of the power module 1034 is greater than the output voltage of the second output terminal; the first output end is electrically connected with the power input ends of the first output interface module 1032 and the second output interface module 1033 respectively; a second output of the power module 1034 is electrically connected to a power supply of the control module 1031.
Specifically, the voltage input by the power supply end of the control module 1031 may be smaller than the voltage input by the power supply input ends of the first output interface module 1032 and the second output interface module 1033, and the power supply module 1034 inputs the voltage to the power supply input end of the first output interface module 1032 and the power supply input end of the second output interface module 1033 through the first output end, and inputs the voltage to the power supply end of the control module 1031 through the second output interface, so as to match the required voltage values of different modules; the user can configure the control module 1031 through the wireless module 201, such as setting information of time of day rise and sunset, and turning on or off the solar simulation device, etc., so as to improve the convenience of operation of the solar simulation device.
According to the technical scheme, the sunshine simulation device comprising the wireless module is adopted, so that a user can configure parameters of the sunshine simulation device by using the wireless module, and operation is facilitated.
Optionally, referring to fig. 4, fig. 4 is a schematic circuit structure diagram of a first output interface module according to an embodiment of the present invention, where the first output interface module includes a first resistor 301, a first transistor 302, a second resistor 303, a first inductor 304, a first diode 305, a first capacitor 306, a second capacitor 307, and a third resistor 308;
a first pole of the first transistor 302 is electrically connected to the power input VCC of the first output interface module, and a control pole of the first transistor 302 is electrically connected to the control PWM11 of the first output interface module; the first end of the first resistor 301 is electrically connected with the first pole of the first transistor 302, the second end of the first resistor 301 is electrically connected with the control pole of the first transistor 302, the second pole of the first transistor 302 is electrically connected with the first end of the first inductor 304 and the cathode of the first diode through the second resistor, the second end of the first inductor 304 is electrically connected with the output end DA1 of the first output interface circuit, the anode of the first diode 305 is grounded, the first end of the first capacitor 306 is electrically connected with the second end of the first inductor 304, and the second end of the first capacitor 306 is grounded; a first end of the second capacitor 307 is electrically connected with a second end of the first inductor 304, and a second end of the second capacitor 307 is grounded; a first end of the third resistor 308 is electrically connected to the first end of the first inductor 304, and a second end of the third resistor 308 is grounded.
Specifically, the control electrode of the first transistor 302 is electrically connected to the control terminal PWM11 of the first output interface module, and receives a PWM (Pulse Width Modulation ) signal, where the first transistor 302, the first inductor 304, the first diode 305, the first capacitor 306, and the third resistor 308 form a basic isolation transformer circuit, and the specific operation manner is well known to those skilled in the art, and the first resistor 301 provides an initial potential for the control electrode of the first transistor 302 to ensure the normal operation of the first transistor 302, the second resistor 303 may be a 0 ohm resistor, so as to be compatible with the layout design of a circuit, and the second capacitor 307 may be used as a filter capacitor to enhance the anti-interference capability of the first output interface module.
Optionally, referring to fig. 5, fig. 5 is a schematic circuit structure diagram of a first output interface module according to another embodiment of the present invention; the first output interface module further includes a first inverter 309 and a fourth resistor 310;
the control electrode of the first transistor 302 is electrically connected with the control end PWM11 of the first output interface module through the first inverter 309, the input end of the first inverter 309 is electrically connected with the control end PWM11 of the first output interface module, and the output end of the first inverter 309 is electrically connected with the control electrode of the first transistor 302; a first end of the fourth resistor 310 is electrically connected to the input of the first inverter 309, and a second end of the fourth resistor 310 is grounded.
Specifically, the ports of the control module that output PWM signals to the first output interface module and the second output interface module respectively may have opposite phases, and by setting the first inverter 309, the phases of the PWM input signals of the first output interface module and the second output interface module are the same, which is easy to control, and meanwhile, the fourth resistor 310 is used as a pull-down resistor, which can protect the first inverter 309 from being damaged.
Optionally, referring to fig. 6, fig. 6 is a schematic circuit diagram of a second output interface module according to an embodiment of the present invention, where the second output interface module includes a fifth resistor 401, a second transistor 402, a sixth resistor 403, a second inductor 404, a second diode 405, a third capacitor 406, a fourth capacitor 407, and a seventh resistor 408;
the first pole of the second transistor 402 is electrically connected with the power input end VCC2 of the second output interface module, wherein the power input end VCC2 of the second output interface module and the power input end VCC1 of the first output interface module can input signals with the same voltage value, the control pole of the second transistor 402 is electrically connected with the control end PWM2 of the second output interface module, the first end of the fifth resistor 401 is electrically connected with the first pole of the second transistor 402, the second end of the fifth resistor 401 is electrically connected with the control pole of the second transistor 402, the second pole of the second transistor 402 is electrically connected with the first end of the second inductor 404 and the cathode of the second diode 405 through the sixth resistor 403, the second end of the second inductor 404 is electrically connected with the output end DA2 of the second output interface circuit, and the anode of the second diode 405 is grounded; a first end of the third capacitor 406 is electrically connected to the second end of the second inductor 404, and a second end of the third capacitor 404 is grounded; the first end of the fourth capacitor 407 is electrically connected with the second end of the second inductor 404, and the second end of the fourth capacitor 407 is grounded; a first end of the seventh resistor 408 is electrically connected to a second end of the second inductor 404, and a second end of the seventh resistor 408 is grounded.
Specifically, the control electrode of the second transistor 402 is electrically connected to the control terminal PWM2 of the second output interface module, and receives the PWM signal, where the second transistor 402, the second inductor 404, the second diode 405, the third capacitor 406, and the seventh resistor 408 form a basic isolation transformer circuit, and the specific working manner is well known to those skilled in the art, where the fifth resistor 401 provides an initial potential for the control electrode of the second transistor 402, so as to ensure the normal operation of the second transistor 402, the sixth resistor 403 may be a 0 ohm resistor, and in a layout design of a compatible circuit, and the fourth capacitor 407 may be used as a filter capacitor to enhance the anti-interference capability of the first output interface module.
Optionally, referring to fig. 7, fig. 7 is a schematic circuit diagram of a second output interface module according to another embodiment of the present invention, and further includes a second inverter 409, a third inverter 410, and an eighth resistor 411;
the control electrode of the second transistor 402 is electrically connected with the control end PWM2 of the second output interface module through the third inverter 410 and the second inverter 409, the input end of the second inverter 409 is electrically connected with the control end PWM2 of the second output interface module, the output end of the second inverter 409 is electrically connected with the input end of the third inverter 410, and the output end of the third inverter 410 is electrically connected with the control electrode of the second transistor 402; a first terminal of the eighth resistor 411 is electrically connected to an input terminal of the second inverter 409, and a second terminal of the eighth resistor 411 is electrically connected to the first pole of the second transistor 402. The series branch formed by the second inverter 409 and the third inverter 410 has an isolating function, and the eighth resistor 411 is used as a pull-up resistor, so that the damage of the second inverter can be avoided.
Optionally, fig. 8 is a schematic circuit diagram of a first light source provided by the embodiment of the present invention, fig. 9 is a schematic circuit diagram of a second light source provided by the embodiment of the present invention, referring to fig. 8 and 9, the first light source includes at least two first light strings 501 connected in parallel, the first light strings 501 include at least two first light emitting diodes 5011 and a third transistor 5012, and may further include a first current limiting resistor 5013, the third transistor 5012 is connected in series with the first light emitting diode 5011, the first current limiting resistor 5013 is connected in series with the first light emitting diode 5011, and a color temperature range of the first light emitting diode 5011 is 2500K-3500K;
the second light source includes at least two second light strings 601 connected in parallel, the second light strings 601 include at least two second light emitting diodes 6011 and a fourth transistor 6012, the fourth transistor 6012 is connected in series with the second light emitting diodes 6011, and may further include a second current limiting resistor 6013, the second current limiting resistor 6013 being connected in series with the second light emitting diodes 6011.
Specifically, the anode of the first light emitting diode 5011 is connected to the power signal VCC1, the base of the third transistor 5012 is electrically connected to the output terminal DA1 of the first output interface module, and by changing the level value output by the output terminal DA1 of the first output interface module, the current value in the first light string 501 can be changed, that is, the light emitting brightness of the first light emitting diode 5011 can be changed. The first current limiting resistor 5013 can be used to avoid the first a string of lights 501 is damaged by excessive current. The anode of the second light emitting diode 6011 is connected to the power signal VCC1, the base of the fourth transistor 6012 is electrically connected to the output end DA2 of the second output interface module, and the current value in the second light string 601, that is, the light emitting brightness of the second light emitting diode 6011, can be changed by changing the level value output by the output end DA2 of the second output interface module. The second current limiting resistor 6013 may be used to prevent the first string of lights 501 from being damaged by excessive current. The color temperature of the first light source may be set to 3000K and the color temperature of the second light source may be set to 9000K to more accurately simulate the illumination condition during sunset.
Optionally, referring to fig. 10, fig. 10 is a flowchart of a driving method of a solar radiation simulation device according to an embodiment of the present invention, where the solar radiation simulation device includes a first light source, a second light source, and a driving control unit electrically connected to the first light source and the second light source, and a color temperature of the first light source is less than a color temperature of the second light source;
the driving method of the solar simulation device comprises the following steps:
step 701, the driving control unit controls the brightness of the first light source to rise from the first brightness to the second brightness in a first preset time period according to the rise time of day; controlling the brightness of the second light source to be increased from the third brightness to the fourth brightness in a second preset time period; wherein the second preset time period follows the first preset time period.
Specifically, the driving control unit controls the light emitting states of the first light source and the second light source, the time of day rise can be freely set according to the selection of a user, and meanwhile, the time of day rise can be automatically calculated according to the local longitude and latitude information; when the set time of day rise is completed and reaches the set time of day rise, the drive control unit controls the light source with low color temperature in a first preset time period, namely the luminous brightness of the first light source is increased from the first brightness to the second brightness; the brightness of the first light source is always kept after reaching the second brightness, and meanwhile, the driving control unit controls the brightness of the second light source to rise from the third brightness to the fourth brightness in a second time period, and the brightness is kept after reaching the fourth brightness, so that the effect of simulating the rising of the sun is achieved; the color temperature of the first light source is lower than that of the second light source, so that the vision and illumination change in the daily rising process can be simulated more accurately.
Optionally, referring to fig. 11, fig. 11 is a flowchart of a driving method of a solar simulator according to an embodiment of the present invention;
the driving method of the solar simulation device comprises the following steps:
step 801, the driving control unit controls the brightness of the first light source to rise from the first brightness to the second brightness in a first preset period according to the rise time; controlling the brightness of the second light source to be increased from the third brightness to the fourth brightness in a second preset time period; wherein the second preset time period follows the first preset time period.
Step 802, the driving control unit controls the first light source to maintain the second brightness at the end of the first preset time period, and controls the second light source to maintain the fourth brightness at the end of the second preset time period; the driving control unit controls the brightness of the first light source to gradually decrease from the second brightness and controls the brightness of the second light source to gradually decrease from the fourth brightness in a second preset period according to the sunset time.
Specifically, the sunset time may be set by a user or the sunset time of the day may be automatically calculated according to the local longitude and latitude information, and when the set sunset time is reached, the driving control unit controls the brightness of the first light source 101 to gradually decrease from the second brightness within the second preset time period, and simultaneously controls the brightness of the second light source to gradually decrease from the fourth brightness within the second preset time period, thereby completing the simulation of the sunset process.
Optionally, the brightness change level of the brightness increasing process of the first light source and the second light source is M level, and M is an integer greater than or equal to 100;
the driving control unit controls the brightness of the first light source to rise from the first brightness to the second brightness and controls the brightness of the second light source to rise from the third brightness to the fourth brightness in a first preset period according to the rise time, and the driving control unit comprises:
the driving control unit controls the brightness of the first light source to be gradually increased from 0 brightness to 100% brightness according to the change level of M levels;
the driving control unit controls the brightness of the second light source to be gradually increased from 0 brightness to 100% brightness according to the change level of M levels;
the brightness change level of the brightness reduction process of the first light source and the second light source is N, and N is an integer greater than or equal to 100;
the driving control unit controls the brightness of the first light source to gradually decrease from the second brightness and controls the brightness of the second light source to gradually decrease from the fourth brightness in a second preset period according to the sunset time, and the driving control unit comprises:
the driving control unit controls the brightness of the first light source and the second light source to be gradually reduced from 100% brightness according to the change level of the N levels.
Illustratively, after the day-up time is reached, the drive control unit first controls the luminance of the first light source to rise from 0 luminance to 100% luminance within 15 minutes, and then the drive control unit controls the luminance of the second light source to rise from 0 luminance to 100% luminance within 15 minutes; wherein, the brightness of the first light source and the second light source is kept after the brightness reaches 100%; the driving control unit can divide the brightness of the light emission into M levels according to the light emission characteristics of the first light source and the second light source, for example, M is set to be 1000, the light characteristics of the first light source and the second light source are made into a table, and the brightness of the first light source and the second light source 102 can be controlled according to a meter reading mode in the light emission process; after the set sunset time is reached, the brightness of the first light source and the second light source gradually decrease from 100% brightness to 0 brightness within 15 minutes, the driving control unit can divide the brightness level of the emitted light into N levels according to the light emitting characteristics of the first light source and the second light source, for example, setting N as 1000, and making the light characteristics of the first light source and the second light source into a table, and can control the brightness of the first light source and the second light source according to a meter reading mode in the light emitting process so as to have no flickering feeling and higher fluency.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (10)
1. The solar simulation device is characterized by comprising a first light source, a second light source and a driving control unit electrically connected with the first light source and the second light source, wherein the color temperature of the first light source is smaller than that of the second light source;
the driving control unit is configured to control the brightness of the first light source to rise from a first brightness to a second brightness in a first preset time period according to the rise time of day; controlling the brightness of the second light source to be increased from the third brightness to the fourth brightness in a second preset time period; wherein the second preset time period follows the first preset time period;
the first light source and the second light source adopt a light emitting diode array structure;
the driving control unit comprises a control module, a first output interface module, a second output interface module and a power supply module;
the power input end of the first output interface module is electrically connected with the power module, the control end of the first output interface module is electrically connected with the control module, and the output end of the first output interface module is electrically connected with the first light source;
the power input end of the second output interface module is electrically connected with the power module, the control end of the second output interface module is electrically connected with the control module, and the output end of the second output interface module is electrically connected with the second light source;
the control module is configured to control the light emission brightness of the first light source through the first output interface module,
and controlling the light emitting brightness of the second light source through the second output interface module;
the wireless module is also included;
the wireless module is electrically connected with the control module;
the power module comprises an input end, a first output end and a second output end;
the output voltage of the first output end of the power supply module is larger than that of the second output end; the first output end is respectively and electrically connected with the power input ends of the first output interface module and the second output interface module; the second output end of the power supply module is electrically connected with the power supply end of the control module.
2. The solar radiation simulation device according to claim 1, wherein the drive control unit is further configured to control the first light source to maintain the second luminance at the end of the first preset time period, and control the second light source to maintain the fourth luminance at the end of the second preset time period; and according to the sunset time, controlling the brightness of the first light source to gradually decrease from the second brightness and controlling the brightness of the second light source to gradually decrease from the fourth brightness in a second preset time period.
3. The solar simulator of claim 1, wherein the first output interface module comprises a first resistor, a first transistor, a second resistor, a first inductor, a first diode, a first capacitor, a second capacitor, and a third resistor;
a first electrode of the first transistor is electrically connected with a power input end of the first output interface module, and a control electrode of the first transistor is electrically connected with a control end of the first output interface module; the first end of the first resistor is electrically connected with the first pole of the first transistor, the second end of the first resistor is electrically connected with the control pole of the first transistor, the second pole of the first transistor is electrically connected with the first end of the first inductor and the cathode of the first diode respectively through the second resistor, the second end of the first inductor is electrically connected with the output end of the first output interface circuit, the anode of the first diode is grounded, the first end of the first capacitor is electrically connected with the second end of the first inductor, and the second end of the first capacitor is grounded; the first end of the second capacitor is electrically connected with the second end of the first inductor, and the second end of the second capacitor is grounded; the first end of the third resistor is electrically connected with the first end of the first inductor, and the second end of the third resistor is grounded.
4. The solar simulator of claim 3, further comprising a first inverter and a fourth resistor;
the control electrode of the first transistor is electrically connected with the control end of the first output interface module through the first inverter, the input end of the first inverter is electrically connected with the control end of the first output interface module, and the output end of the first inverter is electrically connected with the control electrode of the first transistor; the first end of the fourth resistor is electrically connected with the input end of the first inverter, and the second end of the fourth resistor is grounded.
5. The solar simulator of claim 1, wherein the second output interface module comprises a fifth resistor, a second transistor, a sixth resistor, a second inductor, a third capacitor, a fourth capacitor, a seventh resistor, and a second diode;
the first electrode of the second transistor is electrically connected with the power input end of the second output interface module, the control electrode of the second transistor is electrically connected with the control end of the second output interface module, the first end of the fifth resistor is electrically connected with the first electrode of the second transistor, the second end of the fifth resistor is electrically connected with the control electrode of the second transistor, the second electrode of the second transistor is respectively electrically connected with the first end of the second inductor and the cathode of the second diode through the sixth resistor, the second end of the second inductor is electrically connected with the output end of the second output interface circuit, and the anode of the second diode is grounded; the first end of the third capacitor is electrically connected with the second end of the second inductor, and the second end of the third capacitor is grounded; the first end of the fourth capacitor is electrically connected with the second end of the second inductor, and the second end of the fourth capacitor is grounded; the first end of the seventh resistor is electrically connected with the second end of the second inductor, and the second end of the seventh resistor is grounded.
6. The solar simulator of claim 5, further comprising a second inverter, a third inverter, and an eighth resistor;
the control electrode of the second transistor is electrically connected with the control end of the second output interface module through the third inverter and the second inverter, the input end of the second inverter is electrically connected with the control end of the second output interface module, the output end of the second inverter is electrically connected with the input end of the third inverter, and the output end of the third inverter is electrically connected with the control electrode of the second transistor; the first end of the eighth resistor is electrically connected with the input end of the second inverter, and the second end of the eighth resistor is electrically connected with the first pole of the second transistor.
7. The solar simulator of claim 1, wherein the first light source comprises at least two first light strings connected in parallel, the first light strings comprising at least two first light emitting diodes and a third transistor connected in series with the first light emitting diodes, the first light emitting diodes having a color temperature in the range of 2500K-3500K;
the second light source comprises at least two second light strings connected in parallel, each second light string comprises at least two second light emitting diodes and a fourth transistor, each fourth transistor is connected with each second light emitting diode in series, and the color temperature range of each second light emitting diode is 8000K-12000K.
8. A driving method of a solar radiation simulation device according to any one of claims 1 to 7, wherein the solar radiation simulation device comprises a first light source and a second light source, and a driving control unit electrically connected to the first light source and the second light source, and a color temperature of the first light source is smaller than a color temperature of the second light source;
the driving method includes:
the driving control unit controls the brightness of the first light source to rise from the first brightness to the second brightness in a first preset time period according to the daily rise time; controlling the brightness of the second light source to be increased from the third brightness to the fourth brightness in a second preset time period; wherein the second preset time period follows the first preset time period.
9. The driving method according to claim 8, characterized by further comprising: the driving control unit controls the first light source to maintain the second brightness at the end of the first preset time period, and controls the second light source to maintain the fourth brightness at the end of the second preset time period; the driving control unit controls the brightness of the first light source to gradually decrease from the second brightness and controls the brightness of the second light source to gradually decrease from the fourth brightness in a second preset time period according to the sunset time.
10. The driving method according to claim 9, wherein a luminance change level of a luminance raising process of the first light source and the second light source is M-level, M being an integer of 100 or more;
the driving control unit controls the brightness of the first light source to rise from a first brightness to a second brightness and controls the brightness of the second light source to rise from a third brightness to a fourth brightness in a first preset period according to a daily rise time, and the driving control unit comprises:
the driving control unit controls the brightness of the first light source to be gradually increased from 0 brightness to 100% brightness according to the change level of M levels;
the driving control unit controls the brightness of the second light source to be gradually increased from 0 brightness to 100% brightness according to the change level of M levels;
the brightness change level of the brightness reduction process of the first light source and the second light source is N, and N is an integer greater than or equal to 100;
the driving control unit controls the brightness of the first light source to gradually decrease from the second brightness and controls the brightness of the second light source to gradually decrease from the fourth brightness in a second preset period according to sunset time, and the driving control unit comprises:
the driving control unit controls the brightness of the first light source and the second light source to be gradually reduced from 100% brightness according to the change level of N levels.
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