CN110753430A - Light source illumination adjusting system and method, lighting device and readable storage medium - Google Patents
Light source illumination adjusting system and method, lighting device and readable storage medium Download PDFInfo
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Abstract
The invention provides a light source illumination adjusting system and method, a lighting device and a readable storage medium, wherein the light source illumination adjusting system comprises: the illumination detection device is configured to be suitable for acquiring the ambient illumination of the environment where the light source is located; and the control device is connected with the dimming device and the illumination detection device and is configured to determine a target illumination interval and adjust the illumination of the light source according to the ambient illumination and the target illumination interval. Based on the ambient illumination and the target illumination interval automatically regulated light source illuminance appointed by the user, the manual regulation of the user is not needed, on one hand, the energy waste caused by the fact that the light source still emits light with higher illuminance can be avoided when the ambient light is stronger, the energy consumption of the lighting device is reduced, on the other hand, the light source illuminance can be automatically controlled to enable the ambient illumination to be maintained in the target illumination interval when the ambient light brightness is lower or the fluctuation is larger, and the use experience of the product is improved.
Description
Technical Field
The invention relates to the technical field of light source dimming, in particular to a light source illumination adjusting system, a light source illumination adjusting method, a lighting device and a computer readable storage medium.
Background
Generally speaking, ordinary dimmable lighting products (desk lamp, ceiling lamp, etc.) need the user to adjust luminance manually, and illumination intensity is unchangeable continuously after adjusting luminance, and illumination intensity can not adapt to the change of ambient light intensity automatically, leads to brightening at ambient light, when no longer needing the auxiliary lighting of lighting products, causes the energy waste, and increases unnecessary product loss. And when ambient light further darkened, when present illuminance had been not enough, needed the user to intervene manually and adjust luminance in order to guarantee the illuminance, use experience not good.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, the first aspect of the present invention provides a light source illuminance adjusting system.
The second aspect of the present invention provides a method for adjusting illuminance of a light source.
A third aspect of the invention proposes a lighting device.
A fourth aspect of the present invention is directed to a computer-readable storage medium.
In view of the above, a first aspect of the present invention provides a light source illuminance adjusting system, including: the illumination detection device is configured to be suitable for acquiring the ambient illumination of the environment where the light source is located; and the control device is connected with the dimming device and the illumination detection device and is configured to determine a target illumination interval and adjust the illumination of the light source according to the ambient illumination and the target illumination interval.
In the technical scheme, the current environment illumination is acquired by setting the illumination detection device, the illumination of the light source is automatically adjusted based on the environment illumination and the target illumination interval specified by the user, so that the environment illumination after combining the environment brightness and the illumination of the light source always meets the user requirements, and the manual adjustment of the user is not needed, on one hand, the energy waste caused by the fact that the light source still emits light with higher illumination can be avoided when the environment light is stronger, the energy consumption of the lighting device is reduced, on the other hand, the environment brightness can be lower, or when the fluctuation is larger, the illumination of the light source is automatically controlled so that the environment illumination is maintained in the target illumination interval, and the use experience of products is improved.
In addition, the light source illuminance adjusting system in the above technical solution provided by the present invention may further have the following additional technical features:
in the above technical solution, the control device is configured to be suitable for the step of determining the target illuminance interval, and specifically includes: receiving a setting instruction, and determining corresponding target illumination and an illumination precision value corresponding to the target illumination according to the setting instruction; and determining a target illumination interval by taking the difference between the target illumination and the illumination accuracy value as an illumination lower limit and taking the sum of the target illumination and the illumination accuracy value as an illumination upper limit.
In the technical scheme, a user can operate a control panel (a knob, a key, a touch screen and the like) of the lighting device through a terminal or directly to set an instruction, wherein the set instruction comprises target illumination. The target illumination is determined, the accuracy value of the target illumination is determined, the target illumination interval is determined according to the target illumination and the accuracy value, and the illumination of the light source is automatically controlled so that the ambient illumination is in the target illumination interval.
In any of the above technical solutions, the step of configuring the illuminance detection device to be suitable for acquiring the ambient illuminance of the environment where the light source is located specifically includes: acquiring illumination values of the environment where the light source is located once every target time length until the illumination values of the target number are acquired, so as to generate a first environment illumination set; excluding the maximum value and the minimum value of the illumination values in the illumination set to obtain a second ambient illumination set; and calculating the average value of the illumination values in the second ambient illumination set to obtain the ambient illumination.
In the technical scheme, the illuminance values of the current environment are continuously acquired according to a preset frequency, after the illuminance values of the target number are acquired, the maximum value and the minimum value are removed, and then the average value of the acquired illuminance values of the environment is calculated, wherein the average value is the environment illuminance. By acquiring the illuminance value of the environment for multiple times and calculating the average value after removing the maximum value and the minimum value, the influence of special factors such as flash and reflection on the illuminance of the environment can be removed, the obtained illuminance value of the environment is more accurate, and the illuminance of the current environment can be truly reflected.
In any of the above technical solutions, the light source illuminance adjusting system further includes: a dimming device connected with the control device and the light source, the dimming device being configured to adjust an illuminance of the light source according to a dimming signal of the control device; the dimming signal is a pulse width modulation signal.
In this solution, the light source illuminance adjustment system comprises a special dimming device. The control device generates a corresponding dimming signal according to the ambient illumination and the target illumination interval, and the dimming device adjusts a driving signal of the light source according to the dimming signal so as to realize accurate adjustment of the illumination of the light source.
The dimming signal is a Pulse-Width Modulation (PWM) signal, and the higher the duty ratio of the PWM signal is, the stronger the corresponding light source illuminance is, and the lower the duty ratio of the PWM signal is, the weaker the light source illuminance is.
In any of the above technical solutions, the step of adjusting the illuminance of the light source according to the ambient illuminance and the target illuminance interval specifically includes: generating a first dimming signal to adjust the light source to increase the illumination based on the environment illumination being lower than the illumination lower limit until the environment illumination is within the target illumination interval; or based on the fact that the ambient illumination is higher than the upper limit of the illumination, generating a second dimming signal to adjust and control the light source to reduce the illumination until the ambient illumination is within the target illumination interval; wherein the duty ratio of the first dimming signal is greater than the duty ratio of the second dimming signal.
In the technical scheme, if the current ambient illumination is lower than the illumination lower limit, the control device correspondingly generates a first dimming signal, the first dimming signal has a relatively high duty ratio, and the dimming device is controlled to adjust the light source to increase the illumination through the first dimming signal. If the current environment is higher than the upper limit of the illumination, the control device correspondingly generates a second dimming signal, the second dimming signal has a relatively low duty ratio, and the dimming device is controlled to adjust the light source to reduce the illumination through the second dimming signal. The light source is correspondingly controlled to increase or reduce the illumination according to the comparison result of the ambient illumination and the target illumination interval, so that the ambient illumination can be ensured to be always in the target illumination interval set by the user, and when the ambient light intensity changes, the user does not need to manually adjust the illumination of the light source, and the use experience of the lighting device is remarkably improved. Meanwhile, if the ambient light is strong, energy waste caused by the fact that the light source still emits light with high illumination can be avoided, and energy consumption of the lighting device is reduced.
In any of the above technical solutions, the value range of the illuminance accuracy value is as follows: 1lux to 200 lux; the value range of the target duration is as follows: 10ms to 600 ms; the value range of the target number is as follows: 3 to 10000.
In the technical scheme, the smaller the illuminance accuracy value is, the more accurate the dimming effect is, but the more frequent the dimming times are. The larger the illuminance precision value is, the wider the tolerance of the ambient illuminance is, but the dimming times can be effectively reduced, and stroboflash is avoided.
In any one of the above technical solutions, the illuminance detection device includes at least one of: a photoresistor, a phototriode and a photosensitive sensor; the control device comprises a processor chip and a communication device, wherein the processor chip comprises at least one of: the system comprises a singlechip processor, a micro-integrated processor and a digital signal processor; the communication device comprises at least one of: bluetooth communication device, 2.4G communication device, 5G communication device, Wi-Fi communication device, Zigbee communication device.
In this technical scheme, illuminance detection device is used for detecting the ambient illuminance, specifically can set up as: one or more of a photoresistor, a phototransistor and a photosensor. The control device includes a processor chip that can execute a computer program to realize various functions and a communication device that can be used to receive control instructions or control signals from an external terminal or an upper computer or the like. The processor chip may include one or more of a single chip processor, a micro integrated processor, and a Digital Signal Processor (DSP). The communication device may include one or more of a bluetooth communication device, a 2.4G (frequency band between 2.100GHz to 2.4835 GHz) communication device, a 5G (fifth generation mobile communication network) communication device, a Wi-Fi (wireless local area network technology based on IEEE 802.11 standard created by Wi-Fi alliance) communication device, and a Zigbee (Zigbee protocol) communication device.
In any of the above solutions, the dimming signal is a digital dimming signal, the processor chip is configured to generate the digital dimming signal, and the dimming device is configured to adjust the illuminance of the light source according to the digital dimming signal.
In any of the above technical solutions, the dimming signal is a digital dimming signal, the processor chip is configured to be suitable for generating the digital dimming signal, and the control apparatus further includes: an analog dimming unit connected with the processor chip and the dimming device, the analog dimming unit being configured to receive the digital dimming signal and generate an analog dimming signal according to the digital dimming signal; the dimming device is configured and adapted to adjust the illumination of the light source in accordance with the analog dimming signal.
In this technical solution, the control device may further include an analog dimming unit to perform digital-to-analog conversion, the analog dimming unit converts the digital dimming signal generated by the processor chip into an analog dimming signal, and the dimming device may directly adjust the illuminance of the light source according to the analog dimming signal.
A second aspect of the present invention provides a method for adjusting illuminance of a light source, including: acquiring the ambient illumination of the environment where the light source is located, and determining a target illumination interval; and adjusting the illumination of the light source according to the ambient illumination and the target illumination interval.
In the technical scheme, the current environment illumination is obtained, the illumination of the light source is automatically adjusted based on the environment illumination and the target illumination interval specified by the user, so that the environment illumination after the combination of the environment brightness and the illumination of the light source always meets the user requirements, and the manual adjustment of the user is not needed.
In the above technical solution, the step of determining the target illumination interval specifically includes: receiving a setting instruction, and determining corresponding target illumination and an illumination precision value corresponding to the target illumination according to the setting instruction; and determining a target illumination interval by taking the difference between the target illumination and the illumination accuracy value as an illumination lower limit and taking the sum of the target illumination and the illumination accuracy value as an illumination upper limit.
In the technical scheme, the setting instruction comprises target illumination. The target illumination is determined, the accuracy value of the target illumination is determined, the target illumination interval is determined according to the target illumination and the accuracy value, and the illumination of the light source is automatically controlled so that the ambient illumination is in the target illumination interval.
In any of the above technical solutions, the step of obtaining the ambient illuminance of the environment where the light source is located specifically includes: acquiring illumination values of the environment where the light source is located once every target time length until the illumination values of the target number are acquired, so as to generate a first environment illumination set; excluding the maximum value and the minimum value of the illumination values in the illumination set to obtain a second ambient illumination set; and calculating the average value of the illumination values in the second ambient illumination set to obtain the ambient illumination.
In the technical scheme, the illuminance values of the current environment are continuously acquired according to a preset frequency, after the illuminance values of the target number are acquired, the maximum value and the minimum value are removed, and then the average value of the acquired illuminance values of the environment is calculated, wherein the average value is the environment illuminance. By acquiring the illuminance value of the environment for multiple times and calculating the average value after removing the maximum value and the minimum value, the influence of special factors such as flash and reflection on the illuminance of the environment can be removed, the obtained illuminance value of the environment is more accurate, and the illuminance of the current environment can be truly reflected.
In any of the above technical solutions, the step of adjusting the illuminance of the light source according to the ambient illuminance and the target illuminance interval specifically includes: generating a first dimming signal to adjust the light source to increase the illumination based on the environment illumination being lower than the illumination lower limit until the environment illumination is within the target illumination interval; or generating a second dimming signal to adjust the light source to reduce the illumination until the ambient illumination is within the target illumination interval based on the ambient illumination being higher than the upper limit of the illumination; the first dimming signal and the second dimming signal are pulse width modulation signals, and the duty ratio of the first dimming signal is greater than that of the second dimming signal.
In the technical scheme, if the current ambient illumination is lower than the illumination lower limit, the control device correspondingly generates a first dimming signal, the first dimming signal has a relatively high duty ratio, and the dimming device is controlled to adjust the light source to increase the illumination through the first dimming signal. If the current environment is higher than the upper limit of the illumination, the control device correspondingly generates a second dimming signal, the second dimming signal has a relatively low duty ratio, and the dimming device is controlled to adjust the light source to reduce the illumination through the second dimming signal. The light source is correspondingly controlled to increase or reduce the illumination according to the comparison result of the ambient illumination and the target illumination interval, so that the ambient illumination can be ensured to be always in the target illumination interval set by the user, and when the ambient light intensity changes, the user does not need to manually adjust the illumination of the light source, and the use experience of the lighting device is remarkably improved. Meanwhile, if the ambient light is strong, energy waste caused by the fact that the light source still emits light with high illumination can be avoided, and energy consumption of the lighting device is reduced.
In any of the above technical solutions, the value range of the illuminance accuracy value is as follows: 1lux to 200 lux; the value range of the target duration is as follows: 10ms to 600 ms; the value range of the target number is as follows: 3 to 10000.
In the technical scheme, the smaller the illuminance accuracy value is, the more accurate the dimming effect is, but the more frequent the dimming times are. The larger the illuminance precision value is, the wider the tolerance of the ambient illuminance is, but the dimming times can be effectively reduced, and stroboflash is avoided.
A third aspect of the present invention provides an illumination device, including a light source, and the light source illuminance adjusting system provided in any one of the above technical solutions, connected to the light source, so that the illumination device includes all the beneficial effects of the light source illuminance adjusting system provided in any one of the above technical solutions, which are not described herein again.
A fourth aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when being executed by a processor, implements the method for adjusting illuminance of a light source according to any of the above technical solutions, and therefore, the computer-readable storage medium includes all the beneficial effects of the method for adjusting illuminance of a light source according to any of the above technical solutions, which are not described herein again.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a block diagram of a light source illuminance adjustment system according to an embodiment of the invention;
FIG. 2 is a block diagram of a light source illuminance adjustment system according to another embodiment of the invention;
fig. 3 is a block diagram showing a configuration of a control device in the light source illuminance adjustment system according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a light source illuminance adjustment system according to an embodiment of the invention;
FIG. 5 is a schematic diagram illustrating an illumination detection apparatus in a light source illumination adjustment system according to an embodiment of the present invention;
fig. 6 is a schematic connection diagram of a dimming module in the light source illuminance adjusting system according to an embodiment of the present invention;
FIG. 7 illustrates a logic diagram for automatic dimming of a light source illuminance adjustment system according to one embodiment of the present invention;
FIG. 8 shows a flow diagram of a method of light source illumination adjustment according to one embodiment of the invention;
FIG. 9 shows a flow diagram of a method of light source illuminance adjustment according to another embodiment of the invention;
fig. 10 shows a flowchart of a light source illuminance adjustment method according to still another embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The light source illuminance adjusting system, the light source illuminance adjusting method, the lighting device, and the computer-readable storage medium according to some embodiments of the present invention are described below with reference to fig. 1 to 10.
The first embodiment is as follows:
as shown in fig. 1, in one embodiment of the present invention, a light source illuminance adjustment system 100 is provided and includes an illuminance detection device 102 and a control device 104.
Specifically, the illuminance detection device 102 is configured and adapted to obtain the ambient illuminance of the environment in which the light source is located; the control device 104 is connected to the dimming device and the illuminance detection device 102, and the control device 104 is configured to determine a target illuminance interval and adjust the illuminance of the light source according to the ambient illuminance and the target illuminance interval.
In some embodiments, the control device 104 is configured to adapt the step of determining the target illuminance interval, in particular comprising: receiving a setting instruction, and determining corresponding target illumination and an illumination precision value corresponding to the target illumination according to the setting instruction; and determining a target illumination interval by taking the difference between the target illumination and the illumination accuracy value as an illumination lower limit and taking the sum of the target illumination and the illumination accuracy value as an illumination upper limit.
In some embodiments, the illuminance detection apparatus 102 is configured to be adapted to obtain the ambient illuminance of the environment where the light source is located, specifically including: acquiring illumination values of the environment where the light source is located once every target time length until the illumination values of the target number are acquired, so as to generate a first environment illumination set; excluding the maximum value and the minimum value of the illumination values in the illumination set to obtain a second ambient illumination set; and calculating the average value of the illumination values in the second ambient illumination set to obtain the ambient illumination.
The current ambient illumination is obtained by arranging the illumination detection device, and the illumination of the light source is automatically adjusted based on the ambient illumination and the target illumination interval specified by the user, so that the ambient illumination after the combination of the ambient light brightness and the illumination of the light source always meets the requirements of the user, and the manual adjustment of the user is not needed.
And continuously acquiring the illumination values of the current environment according to a preset frequency, after acquiring the illumination values of the target number, removing the maximum value and the minimum value, and calculating the average value of the acquired illumination values of the environment, wherein the average value is the environment illumination. By acquiring the illuminance value of the environment for multiple times and calculating the average value after removing the maximum value and the minimum value, the influence of special factors such as flash and reflection on the illuminance of the environment can be removed, the obtained illuminance value of the environment is more accurate, and the illuminance of the current environment can be truly reflected.
In the using process, a user operates a control panel (a knob, a key, a touch screen and the like) of the lighting device through a terminal or directly to set an instruction, wherein the set instruction comprises the target illumination. Determining the target illumination, determining the precision value of the target illumination, determining a target illumination interval according to the target illumination and the precision value, and automatically controlling the illumination of the light source to enable the ambient illumination to be in the target illumination area.
By automatically identifying the ambient illumination and automatically adjusting the illumination of the light source, the ambient illumination is kept in the target illumination interval, so that on one hand, energy waste caused by the fact that the light source still emits light at high illumination when the ambient light is strong can be avoided, and the energy consumption of the lighting device is reduced; on the other hand, when the ambient light brightness is low or the fluctuation is large, the illumination of the light source is automatically controlled to maintain the ambient illumination within the target illumination range, and the use experience of the product is improved.
Example two:
as shown in fig. 2, in an embodiment of the present invention, a light source illuminance adjusting system 200 is provided, which includes an illuminance detecting device 202, a control device 204 and a dimming device 206.
Specifically, the dimming device 206 is connected with the control device 204 and the light source, and the dimming device 206 is configured to adjust the illuminance of the light source according to the dimming signal of the control device 204; the dimming signal is a pulse width modulation signal.
In some embodiments, the control device 204 is configured to adapt the step of adjusting the illuminance of the light source according to the ambient illuminance and the target illuminance interval, specifically including: generating a first dimming signal to adjust the light source to increase the illumination based on the environment illumination being lower than the illumination lower limit until the environment illumination is within the target illumination interval; or based on the fact that the ambient illumination is higher than the upper limit of the illumination, generating a second dimming signal to adjust and control the light source to reduce the illumination until the ambient illumination is within the target illumination interval; wherein the duty ratio of the first dimming signal is greater than the duty ratio of the second dimming signal.
In some embodiments, the luminance precision value ranges from: 1lux to 200 lux; the value range of the target duration is as follows: 10ms to 600 ms; the value range of the target number is as follows: 3 to 10000.
The light source illumination adjustment system 200 includes a specialized dimming device 206. The control device 204 generates a corresponding dimming signal according to the ambient illuminance and the target illuminance interval, and the dimming device 206 adjusts a driving signal of the light source according to the dimming signal, so as to realize accurate adjustment of the illuminance of the light source.
The dimming signal is a Pulse-Width Modulation (PWM) signal, and the higher the duty ratio of the PWM signal is, the stronger the corresponding light source illuminance is, and the lower the duty ratio of the PWM signal is, the weaker the light source illuminance is.
If the current ambient illumination is lower than the illumination lower limit, the control device correspondingly generates a first dimming signal, the first dimming signal has a relatively high duty ratio, and the dimming device is controlled to adjust the light source to increase the illumination through the first dimming signal. If the current environment is higher than the upper limit of the illumination, the control device correspondingly generates a second dimming signal, the second dimming signal has a relatively low duty ratio, and the dimming device is controlled to adjust the light source to reduce the illumination through the second dimming signal. The light source is correspondingly controlled to increase or reduce the illumination according to the comparison result of the ambient illumination and the target illumination interval, so that the ambient illumination can be ensured to be always in the target illumination interval set by the user, and when the ambient light intensity changes, the user does not need to manually adjust the illumination of the light source, and the use experience of the lighting device is remarkably improved. Meanwhile, if the ambient light is strong, energy waste caused by the fact that the light source still emits light with high illumination can be avoided, and energy consumption of the lighting device is reduced.
The smaller the illuminance accuracy value is, the more accurate the dimming effect is, but the more frequent the dimming times are. The larger the illuminance precision value is, the wider the tolerance of the ambient illuminance is, but the dimming times can be effectively reduced, and stroboflash is avoided.
The product of the target duration and the target number is a complete ambient illumination recognition period, and in some embodiments, the target duration is 50ms, the target number is 100, and then the complete ambient illumination recognition period is 5 seconds.
Example three:
as shown in fig. 3, in an embodiment of the present invention, the control device 300 includes a processor chip 302, a communication device 304, and an analog dimming unit 306.
Wherein the processor chip 302 includes at least one of: the system comprises a singlechip processor, a micro-integrated processor and a digital signal processor; the communication device 304 includes at least one of: bluetooth communication device, 2.4G communication device, 5G communication device, Wi-Fi communication device, Zigbee communication device.
The illuminance detection device includes at least one of: photoresistor, phototriode, photosensor.
Specifically, the illuminance detection device is used for detecting ambient illuminance, and may specifically be configured to: one or more of a photoresistor, a phototransistor and a photosensor. The control device includes a processor chip that can execute a computer program to realize various functions and a communication device that can be used to receive control instructions or control signals from an external terminal or an upper computer or the like. The processor chip may include one or more of a single chip processor, a micro integrated processor, and a Digital Signal Processor (DSP). The communication device may include one or more of a bluetooth communication device, a 2.4G (frequency band between 2.100GHz to 2.4835 GHz) communication device, a 5G (fifth generation mobile communication network) communication device, a Wi-Fi (wireless local area network technology based on IEEE 802.11 standard created by Wi-Fi alliance) communication device, and a Zigbee (Zigbee protocol) communication device.
In some embodiments, the dimming signal is a digital dimming signal, the processor chip is configured and adapted to generate the digital dimming signal, and the dimming device is configured and adapted to adjust the illuminance of the light source according to the digital dimming signal.
Wherein, for the case that the analog dimming unit 306 is not provided, the dimming signal is a digital dimming signal, the processor chip is configured to generate the digital dimming signal, and the dimming device is configured to adjust the illuminance of the light source according to the digital dimming signal.
In some embodiments, the dimming signal is a digital dimming signal, the processor chip is configured and adapted to generate the digital dimming signal, and the control device 300 further comprises: an analog dimming unit 306 connected to the processor chip 302 and the dimming device, the analog dimming unit 306 being configured to receive the digital dimming signal and generate an analog dimming signal according to the digital dimming signal; the dimming device is configured and adapted to adjust the illumination of the light source in accordance with the analog dimming signal.
In the case where the analog dimming unit 306 is provided, digital-to-analog conversion is performed by the analog dimming unit 306, the digital dimming signal generated by the processor chip is converted into an analog dimming signal by the analog dimming unit 306, and the dimming device can directly adjust the illuminance of the light source according to the analog dimming signal.
Example four:
as shown in fig. 4, in a complete embodiment of the present invention, an automatic dimming control system includes: illuminance detection device, controlling means, dimming device, light source and constant illuminance set switch.
The illumination detection device is arranged in the illumination product and connected with the control device, and the illumination detection device detects the ambient illumination outside the product through the light-transmitting mirror; meanwhile, the ambient illuminance information is converted into an electric signal, and the control device samples the electric signal sent by the illuminance detection module in real time, so that the current ambient illuminance is obtained through analysis and calculation.
The control device is connected with the illumination detection device, the dimming device and the constant illumination setting switch. When the constant illumination setting switch is turned on, the light source illumination adjusting method is started to automatically adjust the light, so that the detection of the illumination and the control of the light adjusting device are realized, and the light emitting brightness of the light source is controlled.
The dimming device is connected with the control device and the light source, and controls the current output to the light source by receiving the control instruction of the control device, so that the light-emitting brightness of the light source is controlled.
Specifically, as shown in FIG. 5, the illumination detection device is a photo-resistor, photo-transistor or other photo-sensor, and in some embodiments may be selected from a photo-transistor, such as a photo-transistor of the type ALS-PDIC17-77B-TR 8. When the ambient light changes, the photocurrent output by the phototriode changes, so that the photovoltage of the point A changes, the control device collects the photovoltage of the point A, and then the current ambient illuminance is obtained.
The control device is connected with the illumination detection device, the dimming device and the constant illumination setting switch. When the constant illumination setting switch is turned on, the light source illumination adjusting method is started to automatically adjust the light, so that the detection of the illumination and the control of the light adjusting device are realized, and the light emitting brightness of the light source is controlled. The control device comprises a processor chip, specifically a single chip microcomputer, a DSP, and a communication device, specifically not a Bluetooth module, a 2.4G chip, a Wi-Fi module, a Zigbee module and the like.
As shown in fig. 6, the dimming device is connected to the control device and the light source, and receives a control command from the control device to control the current output to the light source, thereby controlling the light emitting brightness of the light source.
In an embodiment of the present invention, the dimming device may be a dimming control chip constant current driving chip SY7301A, the power supply may be an output power supply of a 12V adapter, the dimming device may also be connected to the control device through an analog dimming unit, the control device sends a digital dimming signal, for example, a PWM digital dimming signal is converted into an analog dimming signal through the analog dimming unit, and the analog dimming signal controls the dimming control chip to adjust the output current, thereby achieving automatic dimming.
Specifically, as shown in fig. 7, the logic of the automatic dimming is as follows:
step S702, acquiring target illumination An;
in step S702, An ambient illuminance required by the user, i.e., a target illuminance An, is obtained, and a constant light interval, i.e., a target illuminance interval is equal to or greater than An-D1 and equal to or less than An + D1, is automatically generated.
Wherein An is the target illumination, D1 is the illumination precision value, D1 is greater than 1lux and D1 is less than 200 lux. A, obtaining the ambient illumination required by a user, namely target illumination An, wherein the user can set the ambient illumination through a key and a remote controller or remotely through wireless Wi-Fi, Bluetooth, An intelligent sound box and the like, and storing the set ambient illumination in a Flash (Flash memory) of a processor chip after the setting is finished.
In some embodiments, the target illumination may also be a preset value, such as 900 lux.
In some embodiments, D1 takes the value 100 lux.
Step S704, acquiring the current ambient light illuminance Ax;
step S706, delaying for N times, obtaining the current ambient light illumination A2 again, and detecting for M times in this way;
step S708, removing the maximum value and the minimum value, and then taking an average value Ap;
step S710, judging whether MxN is more than or equal to Mt; if yes, go to step S712, otherwise return to step S706;
in steps S704 to S710, after obtaining the current ambient light illuminance Ax, the target time duration N is delayed, where the value range of N is greater than or equal to 10ms and less than or equal to 600 ms.
In an actual case, Mt is a determination threshold, N is 50ms, M is 100 times, and in an ideal state, M × N is 5 seconds.
Step S712, judging whether Ap < An-D1 is satisfied; if yes, go to step S714, otherwise go to step S716;
step S714, sending out a control signal for increasing output current;
step S716, judge whether Ap > An + D1 is satisfied; if yes, go to step S718, otherwise end;
in step S718, a control signal for reducing the output current is sent.
In the above control logic, the following can be summarized:
(1) acquiring the ambient light intensity An required by a user; automatically generating a constant light interval, wherein the range of the constant light interval is An-D1 to An + D1;
(2) acquiring the current ambient light illuminance Ax;
(3) delaying for N time, and then acquiring the current ambient light illumination A2; continuously detecting for M times; removing the maximum and minimum values and then taking an average value Ap;
(4) when MxN is larger than or equal to Mt, comparing An with Ap;
(5) if Ap < An-D1, sending a control signal for increasing the output current to the dimming device, and increasing the current output by the dimming device to the light source; if Ap > An + D1, a control signal for reducing the output current is sent to the dimming device, and the current output by the dimming device to the light source is reduced.
The ambient illumination required by the user, namely the target illumination An, is acquired, and the user can set the target illumination An through a key and a remote controller or through a wireless Wi-Fi or Bluetooth sound box. After the setting is completed, the data is stored in Flash of the central processing unit, or may be a default value, such as 900 lux. Wherein D1 is precision value corresponding to constant illumination, namely illumination precision value, D1 is more than 1lux and D1 is less than 200lux, and the value of commonly used D1 is 100 lux.
And delaying the time N after obtaining the current ambient light illuminance Ax, wherein the value range of N is more than or equal to 10ms and less than or equal to 600 ms. Wherein, Mt is a judgment threshold, and the value range of multiplying M by N is more than or equal to 1s and less than or equal to 100 s. In an actual case, N is 50ms, and M is 100, and in an ideal state, M × N is Mt is 5 seconds.
The maximum value and the minimum value of the illuminance Ax of 100 times are subtracted to obtain an average value Ap, where Ap is 1100 lux. When 1100lux exceeds the target illumination range, namely AP is more than An + D1, the control signal value of the output current is reduced, the current output to the light source by the dimming device is reduced, and the light becomes dark.
Example five:
as shown in fig. 8, in an embodiment of the present invention, there is provided a light source illuminance adjusting method, including:
step S802, acquiring the ambient illumination of the environment where the light source is located, and determining a target illumination interval;
step S804, adjusting the illuminance of the light source according to the ambient illuminance and the target illuminance interval.
In some embodiments, as shown in fig. 9, the step of determining the target illuminance interval specifically includes:
step S902, receiving a setting instruction, and determining a corresponding target illumination and an illumination precision value corresponding to the target illumination according to the setting instruction;
in step S904, the difference between the target illuminance and the illuminance accuracy value is used as the lower illuminance limit, and the sum of the target illuminance and the illuminance accuracy value is used as the upper illuminance limit, so as to determine a target illuminance interval.
In some embodiments, as shown in fig. 10, the step of obtaining the ambient illuminance of the environment where the light source is located specifically includes:
step S1002, obtaining illumination values of the environment where the light source is located once every target time length until the illumination values of the target number are obtained, so as to generate a first environment illumination set;
step S1004, excluding the maximum value and the minimum value of the illumination values in the illumination set to obtain a second ambient illumination set;
in step S1006, an average value of the illuminance values in the second ambient illuminance set is calculated to obtain the ambient illuminance.
In some embodiments, the step of adjusting the illuminance of the light source according to the ambient illuminance and the target illuminance interval specifically includes:
generating a first dimming signal to adjust the light source to increase the illumination based on the environment illumination being lower than the illumination lower limit until the environment illumination is within the target illumination interval; or
And generating a second dimming signal to adjust the light source to reduce the illumination until the ambient illumination is within the target illumination interval based on the ambient illumination being higher than the upper illumination limit.
The first dimming signal and the second dimming signal are pulse width modulation signals, and the duty ratio of the first dimming signal is greater than that of the second dimming signal.
In some embodiments, the luminance precision value ranges from: 1lux to 200 lux; the value range of the target duration is as follows: 10ms to 600 ms; the value range of the target number is as follows: 3 to 10000.
By acquiring the current ambient illuminance, the illuminance of the light source is automatically adjusted based on the ambient illuminance and the target illuminance interval specified by the user, so that the ambient illuminance after combining the ambient light brightness and the illuminance of the light source always meets the user requirements, and manual adjustment by the user is not needed.
Wherein, the setting instruction comprises the target illumination. The target illumination is determined, the accuracy value of the target illumination is determined, the target illumination interval is determined according to the target illumination and the accuracy value, and the illumination of the light source is automatically controlled so that the ambient illumination is in the target illumination interval.
And continuously acquiring the illumination values of the current environment according to a preset frequency, after acquiring the illumination values of the target number, removing the maximum value and the minimum value, and calculating the average value of the acquired illumination values of the environment, wherein the average value is the environment illumination. By acquiring the illuminance value of the environment for multiple times and calculating the average value after removing the maximum value and the minimum value, the influence of special factors such as flash and reflection on the illuminance of the environment can be removed, the obtained illuminance value of the environment is more accurate, and the illuminance of the current environment can be truly reflected.
If the current ambient illumination is lower than the illumination lower limit, the control device correspondingly generates a first dimming signal, the first dimming signal has a relatively high duty ratio, and the dimming device is controlled to adjust the light source to increase the illumination through the first dimming signal. If the current environment is higher than the upper limit of the illumination, the control device correspondingly generates a second dimming signal, the second dimming signal has a relatively low duty ratio, and the dimming device is controlled to adjust the light source to reduce the illumination through the second dimming signal. The light source is correspondingly controlled to increase or reduce the illumination according to the comparison result of the ambient illumination and the target illumination interval, so that the ambient illumination can be ensured to be always in the target illumination interval set by the user, and when the ambient light intensity changes, the user does not need to manually adjust the illumination of the light source, and the use experience of the lighting device is remarkably improved. Meanwhile, if the ambient light is strong, energy waste caused by the fact that the light source still emits light with high illumination can be avoided, and energy consumption of the lighting device is reduced.
The smaller the illuminance accuracy value is, the more accurate the dimming effect is, but the more frequent the dimming times are. The larger the illuminance precision value is, the wider the tolerance of the ambient illuminance is, but the dimming times can be effectively reduced, and stroboflash is avoided.
Example six:
in an embodiment of the present invention, there is provided an illumination apparatus, including a light source, and the light source illuminance adjusting system provided in any one of the above embodiments, so that the illumination apparatus includes all the advantages of the light source illuminance adjusting system provided in any one of the above embodiments, which are not described herein again.
Example seven:
in an embodiment of the present invention, a computer-readable storage medium is provided, on which a computer program is stored, and the computer program is executed by a processor to implement the method for adjusting illuminance of a light source provided in any of the above embodiments, so that the computer-readable storage medium includes all the beneficial effects of the method for adjusting illuminance of a light source provided in any of the above embodiments, and the details are not repeated herein.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically defined, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only an alternative embodiment of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (16)
1. A light source illuminance adjustment system, comprising:
the illumination detection device is configured to be suitable for acquiring the ambient illumination of the environment where the light source is located;
a control device connected with the dimming device and the illuminance detection device, wherein the control device is configured to determine a target illuminance interval and adjust the illuminance of the light source according to the ambient illuminance and the target illuminance interval.
2. The light source illuminance adjustment system according to claim 1, wherein the control device is configured to adapt the step of determining the target illuminance interval, in particular comprising:
receiving a setting instruction, and determining corresponding target illumination and an illumination precision value corresponding to the target illumination according to the setting instruction;
and determining the target illumination interval by taking the difference between the target illumination and the illumination precision value as an illumination lower limit and taking the sum of the target illumination and the illumination precision value as an illumination upper limit.
3. The system for adjusting illuminance of a light source according to claim 2, wherein the illuminance detection device is configured to be suitable for obtaining the ambient illuminance of the environment where the light source is located, and specifically comprises:
acquiring illumination values of the environment where the light source is located once every target duration until the illumination values of the target number are acquired, so as to generate a first environment illumination set;
excluding the maximum value and the minimum value of the illumination values in the illumination set to obtain a second ambient illumination set;
and calculating the average value of the illumination values in the second ambient illumination set to obtain the ambient illumination.
4. The light source illuminance adjustment system according to claim 3, further comprising:
a dimming device connected with the control device and the light source, the dimming device being configured to adjust an illuminance of the light source according to a dimming signal of the control device;
wherein the dimming signal is a pulse width modulation signal.
5. The system for adjusting illuminance of a light source according to claim 4, wherein the control device is configured to adapt the step of adjusting the illuminance of the light source according to the ambient illuminance and the target illuminance interval, and in particular comprises:
based on the ambient illuminance being lower than the illuminance lower limit, generating a first dimming signal to adjust the light source to increase illuminance until the ambient illuminance is within the target illuminance interval; or
Based on the environment illumination intensity being higher than the illumination intensity upper limit, generating a second dimming signal to adjust and control the light source to reduce the illumination intensity until the environment illumination intensity is within the target illumination intensity interval;
wherein a duty cycle of the first dimming signal is greater than a duty cycle of the second dimming signal.
6. The system of any one of claims 2 to 4, wherein the illumination accuracy value is in a range of: 1lux to 200 lux;
the value range of the target duration is as follows: 10ms to 600 ms;
the value range of the target number is as follows: 3 to 10000.
7. The light source illuminance adjustment system according to any one of claims 1 to 5, wherein the illuminance detection device comprises at least one of:
a photoresistor, a phototriode and a photosensitive sensor;
the control device comprises a processor chip and a communication device, wherein the processor chip comprises at least one of:
the system comprises a singlechip processor, a micro-integrated processor and a digital signal processor;
the communication device comprises at least one of:
bluetooth communication device, 2.4G communication device, 5G communication device, Wi-Fi communication device, Zigbee communication device.
8. The system of claim 7, wherein the dimming signal is a digital dimming signal, the processor chip is configured and adapted to generate the digital dimming signal, and the dimming device is configured and adapted to adjust the illumination of the light source according to the digital dimming signal.
9. The light source illuminance adjustment system according to claim 7, wherein the dimming signal is a digital dimming signal, the processor chip is configured and adapted to generate the digital dimming signal, and the control device further comprises:
an analog dimming unit connected to the processor chip and the dimming device, the analog dimming unit being configured to receive the digital dimming signal and generate an analog dimming signal according to the digital dimming signal;
the dimming device is configured and adapted to adjust the illumination of the light source in accordance with the analog dimming signal.
10. A method for adjusting illumination of a light source, comprising:
acquiring the ambient illumination of the environment where the light source is located, and determining a target illumination interval;
and adjusting the illumination of the light source according to the environment illumination and the target illumination interval.
11. The method for adjusting illuminance of a light source according to claim 10, wherein the step of determining the target illuminance interval specifically comprises:
receiving a setting instruction, and determining corresponding target illumination and an illumination precision value corresponding to the target illumination according to the setting instruction;
and determining the target illumination interval by taking the difference between the target illumination and the illumination precision value as an illumination lower limit and taking the sum of the target illumination and the illumination precision value as an illumination upper limit.
12. The method for adjusting illuminance of a light source according to claim 11, wherein the step of obtaining the ambient illuminance of the environment where the light source is located specifically includes:
acquiring illumination values of the environment where the light source is located once every target duration until the illumination values of the target number are acquired, so as to generate a first environment illumination set;
excluding the maximum value and the minimum value of the illumination values in the illumination set to obtain a second ambient illumination set;
and calculating the average value of the illumination values in the second ambient illumination set to obtain the ambient illumination.
13. The method for adjusting illuminance of a light source according to claim 12, wherein the step of adjusting the illuminance of the light source according to the ambient illuminance and the target illuminance interval specifically comprises:
based on the ambient illuminance being lower than the illuminance lower limit, generating a first dimming signal to adjust the light source to increase illuminance until the ambient illuminance is within the target illuminance interval; or
Based on the ambient illuminance being higher than the illuminance upper limit, generating a second dimming signal to adjust the light source to reduce illuminance until the ambient illuminance is within the target illuminance interval;
the first dimming signal and the second dimming signal are pulse width modulation signals, and the duty ratio of the first dimming signal is greater than that of the second dimming signal.
14. The method of adjusting illuminance of a light source according to claim 12 or 13, wherein the illuminance accuracy value has a value range of: 1lux to 200 lux;
the value range of the target duration is as follows: 10ms to 600 ms;
the value range of the target number is as follows: 3 to 10000.
15. An illumination device, comprising:
a light source; and
the light source illuminance adjustment system of any one of claims 1 to 9, connected with the light source.
16. A computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the light source illuminance adjustment method according to any one of claims 10 to 14.
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