Intelligent dynamic rhythm lighting control circuit and lighting lamp

Abstract

This disclosure provides an intelligent dynamic rhythm lighting control circuit and lighting fixture. The intelligent dynamic rhythm lighting control circuit includes a microcontroller, an environmental information sensing module, and a light source module. The environmental information sensing module consists of a GPS submodule, a wireless communication submodule, and an ambient light sensing submodule, used to acquire geographical location and time, cloud-based weather data, and real-time monitoring of ambient illuminance, respectively. The microcontroller connects to each module, acquires real-time data, and combines it with a control algorithm based on a biorhythm model to calculate appropriate color temperature and brightness curves. It then outputs a PWM control signal to the light source module. The light source module receives the PWM control signal output by the microcontroller and adjusts the current of LEDs with different color temperatures to adjust the brightness and color temperature of the lighting load. This achieves dynamic lighting simulation that varies with region, season, weather, and time. Through real-time data feedback, the light source module adaptively adjusts to meet user needs and improve user experience.

Description

Technical Field

[0001] This disclosure relates to the technical field of intelligent lighting, and in particular to an intelligent dynamic rhythmic lighting control circuit and lighting fixture. Background Technology

[0002] In the field of modern indoor lighting, as people pay more attention to quality of life and health, the requirements for lighting environments have shifted from basic brightness needs to simulating natural light and conforming to human physiological rhythms. Especially in poorly lit indoor spaces, such as the interior areas of dense buildings, basement spaces, and specific places such as education and medical facilities, users expect to create a comfortable environment close to natural sunlight through lighting equipment.

[0003] Skylights, as an important element of indoor lighting, are widely used in various types of buildings. Their unique lighting effects can simulate the scene of sunlight streaming into a room, creating a natural environment reminiscent of blue skies, white clouds, and bright sunshine. However, traditional skylights, with their fixed brightness and color temperature designs, can only meet basic lighting needs and cannot intelligently adjust to changes in the environment, thus limiting their effectiveness in specific settings. Utility Model Content

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide an intelligent dynamic rhythmic lighting control circuit and lighting fixture based on geographic location and weather data and a biological rhythm model.

[0005] The purpose of this disclosure is achieved through the following technical solution:

[0006] An intelligent dynamic rhythmic lighting control circuit includes a microcontroller, an environmental information sensing module, and a light source module. The environmental information sensing module includes a GPS submodule, a wireless communication submodule, and an ambient light sensing submodule. The GPS submodule is used to acquire current geographical location and time information, the ambient light sensing submodule is used to monitor ambient light intensity in real time, and the wireless communication submodule is used to acquire weather data from the cloud in real time.

[0007] The light source module is used to receive PWM control signals from multiple channels output by the microcontroller, and to output different current signals to each channel lighting load by adjusting the PWM duty cycle of multiple channels, so as to dynamically adjust the brightness and color temperature of the lamp.

[0008] The light intensity detection signal terminal of the microcontroller is connected to the light intensity output signal terminal of the ambient light sensing submodule, the positioning information detection terminal of the microcontroller is connected to the positioning information output terminal of the GPS submodule, the wireless communication receiving terminal of the microcontroller is connected to the wireless communication data terminal of the wireless communication submodule, and the PWM signal output terminal of the microcontroller is connected to the PWM signal receiving terminal of the light source module.

[0009] In one embodiment, the ambient light sensing submodule includes a first voltage divider resistor and a photoresistor. The first end of the first voltage divider resistor is connected to an external power supply, the second end of the first voltage divider resistor is connected to the first end of the photoresistor, the first end of the photoresistor is also connected to the light intensity detection signal terminal, and the second end of the photoresistor is grounded.

[0010] In one embodiment, the GPS submodule includes a positioning communication chip and a second filter capacitor. The positioning information output terminal of the positioning communication chip is connected to the positioning information detection terminal. One end of the second filter capacitor is connected to the power supply terminal of the positioning communication chip. The power supply terminal of the positioning communication chip is used to connect to an external power source. The other end of the second filter capacitor is grounded.

[0011] In one embodiment, the wireless communication submodule includes a wireless communication chip and a second voltage divider resistor. The wireless communication data terminal of the wireless communication chip is connected to the wireless communication receiver terminal, and the second voltage divider resistor is connected in series between the external power supply terminal and the power supply terminal of the wireless communication chip.

[0012] In one embodiment, the intelligent dynamic rhythm lighting control circuit further includes a microcontroller current-limiting resistor chip, which is connected in series between the external power supply terminal and the power supply terminal of the microcontroller.

[0013] In one embodiment, the intelligent dynamic rhythm lighting control circuit further includes a filter resistor and a first filter capacitor. One end of the filter resistor is connected to the power supply terminal of the microcontroller, the other end of the filter resistor is connected to the first end of the first filter capacitor, and the second end of the first filter capacitor is grounded.

[0014] In one embodiment, the light source module includes a main illumination submodule and a mixed-light skylight submodule. The first PWM signal receiving terminal of the main illumination submodule is connected to the first PWM signal transmitting terminal of the microcontroller, and the second PWM signal receiving terminal of the mixed-light skylight submodule is connected to the second PWM signal transmitting terminal of the microcontroller.

[0015] In one embodiment, the main lighting submodule includes a dimming control chip, a main lighting control chip, a first electronic switch, and a second electronic switch. The dimming signal receiving end of the dimming control chip is connected to the dimming signal output end of the microcontroller. The warm and cool light signal receiving end of the main lighting control chip is connected to the warm and cool light signal control end of the microcontroller. The first end of the first electronic switch is used to connect to a warm light lighting load, and the first end of the second electronic switch is used to connect to a cool light lighting load. The control end of the first electronic switch is connected to the first output end of the main lighting control chip, and the control end of the second electronic switch is connected to the second output end of the main lighting control chip. The second ends of the first and second electronic switches are respectively connected to the switching signal ends of the dimming control chip.

[0016] In one embodiment, the mixed-light skylight submodule includes a green light control chip, a blue light control chip, and a white light control chip. The blue light PWM signal receiving terminal of the blue light control chip is connected to the blue light PWM signal output terminal of the microcontroller. The white light PWM signal receiving terminal of the white light control chip is connected to the white light PWM signal output terminal of the microcontroller. The green light PWM signal receiving terminal of the green light control chip is connected to the green light PWM signal output terminal of the microcontroller. The output terminal of the blue light control chip is used to connect to a blue LED load. The output terminal of the green light control chip is used to connect to a green LED load. The output terminal of the white light control chip is used to connect to a white LED load.

[0017] This application also provides a lighting fixture, including the intelligent dynamic rhythm lighting control circuit described in any embodiment.

[0018] Compared with the prior art, this disclosure has at least the following advantages:

[0019] The aforementioned intelligent dynamic rhythmic lighting control circuit acquires real-time geographical location, time, weather data, and ambient light intensity through a microcontroller. Combined with a pre-set biorhythm model control algorithm, it calculates suitable color temperature and brightness curves and outputs corresponding PWM control signals to the light source module. This allows for precise adjustment of the brightness and color temperature of the lighting load within the light source module, achieving simulated lighting effects that dynamically change with region, season, weather, and time. This overcomes the problem of traditional lamps having fixed brightness and color temperature, which prevents the automation of rhythmic lighting. Furthermore, the microcontroller acquires the latest geographical location, time, weather, and ambient light intensity data in real time and establishes a feedback optimization system. This enables the microcontroller to automatically adjust the output PWM control signal, allowing the light source module to synchronously perform adaptive adjustments, thereby enhancing the user experience. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A microcontroller circuit diagram of an embodiment of an intelligent dynamic rhythm lighting control circuit;

[0022] Figure 2 for Figure 1 The circuit diagram of the environmental information sensing module shown is shown.

[0023] Figure 3 for Figure 1 The circuit diagram of the main illumination submodule of the light source module is shown below;

[0024] Figure 4 for Figure 1 The circuit diagram shown is for the mixed-light skylight submodule of the light source module. Detailed Implementation

[0025] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0029] like Figures 1 to 4 As shown, an intelligent dynamic rhythm lighting control circuit 10 according to an embodiment of the present disclosure includes a microcontroller U5, an environmental information sensing module 100, and a light source module 200. The environmental information sensing module 100 includes a GPS submodule 110, a wireless communication submodule 120, and an ambient light sensing submodule 130. The GPS submodule 110 is used to obtain the current geographical location and time information, the ambient light sensing submodule 130 is used to monitor the ambient light intensity in real time, and the wireless communication submodule 120 is used to obtain weather data from the cloud in real time.

[0030] The light source module 200 is used to receive PWM control signals from multiple channels output by the microcontroller, and to output different current signals to each channel lighting load by adjusting the PWM duty cycle of multiple channels, so as to dynamically adjust the brightness and color temperature of the lamp.

[0031] The light intensity detection signal terminal PC15 of the microcontroller U5 is connected to the light intensity output signal terminal POD of the ambient light sensing submodule 130. The positioning information detection terminal UART1_RX of the microcontroller U5 is connected to the positioning information output terminal UART1_TX of the GPS submodule 110. The wireless communication receiving terminal UART2_RX of the microcontroller U5 is connected to the wireless communication data terminal UART2_TX of the wireless communication submodule 120. The PWM signal output terminal of the microcontroller U5 is connected to the PWM signal receiving terminal of the light source module 200.

[0032] In this embodiment, when the intelligent lighting system is started, the GPS submodule 110 acquires the current geographical location and time information and sends it to the microcontroller U5. Simultaneously, the ambient light sensing submodule 130 monitors the light intensity of the environment where the lighting fixture is located in real time and sends the data to the microcontroller U5. Furthermore, the wireless communication submodule 120 acquires the weather data of the current geographical location from the cloud in real time via wireless communication technology and then sends it to the microcontroller U5. Next, the microcontroller U5 dynamically generates the target color temperature and brightness curves based on its internally preset circadian rhythm algorithm, combined with geographical location, time, and weather data, and outputs multi-channel PWM control signals to the light source module 200. After receiving the PWM control signals output by the microcontroller U5, the light source module 200 adjusts the current output to the lighting load by changing the PWM duty cycle, thereby changing the brightness and color temperature of the lighting load, and thus simulating the changes in natural light with time, weather, and geographical location. On the other hand, the ambient light sensing submodule 130, GPS submodule 110, and wireless communication submodule 120 acquire the latest data and continuously feed it back to the microcontroller U5. Based on feedback data and optimized rhythm control parameters, the microcontroller U5 automatically adjusts the output PWM control signal to achieve adaptive adjustment of the light source module 200, thereby better simulating changes in natural light and meeting user needs.

[0033] The aforementioned intelligent dynamic rhythmic lighting control circuit 10 acquires real-time geographical location, time, weather data, and ambient light intensity through the microcontroller U5. Combined with a preset biorhythm model control algorithm, it calculates suitable color temperature and brightness curves and outputs corresponding PWM control signals to the light source module 200. This precisely adjusts the brightness and color temperature of the lighting load in the light source module 200, achieving simulated lighting effects that dynamically change with region, season, weather, and time. This overcomes the problem of traditional lamps having fixed brightness and color temperature, which prevents the automation of rhythmic lighting. Furthermore, the microcontroller U5 acquires the latest geographical location, time, weather, and ambient light intensity data in real time and establishes a feedback optimization system. This allows the microcontroller U5 to automatically adjust the output PWM control signal, enabling the light source module 200 to synchronously complete adaptive adjustments, thereby improving the user experience.

[0034] like Figure 1 and Figure 2 As shown, in one embodiment, the ambient light sensing submodule 130 includes a first voltage divider resistor R43 and a photoresistor R44. The first terminal of the first voltage divider resistor R43 is connected to an external power supply, and the second terminal of the first voltage divider resistor R43 is connected to the first terminal of the photoresistor R44. The first terminal of the photoresistor R44 is also connected to the light intensity detection signal terminal PC15, and the second terminal of the photoresistor R44 is grounded. In this embodiment, the first voltage divider resistor R43 and the photoresistor R44 together form a voltage divider circuit for detecting changes in ambient light intensity and converting them into an electrical signal output to the microcontroller U5. Specifically, the resistance of the photoresistor R44 decreases when the light intensity increases and increases when the light intensity decreases. Since the photoresistor R44 and the first voltage divider resistor R43 are connected in series between the external power supply and ground, the voltage at the first terminal of the photoresistor R44 is the voltage signal output to the microcontroller U5. When the ambient light intensity changes, the change in the resistance of the photoresistor R44 causes a corresponding change in the voltage value at that point. Furthermore, when the light intensity increases, the resistance of the photoresistor R44 decreases, and the resistance ratio of the photoresistor R44 to the first voltage divider resistor R43 in the voltage divider circuit decreases, resulting in a drop in the voltage at the photoresistor R44 terminal and a drop in the output voltage. Conversely, when the light intensity decreases, the resistance of the photoresistor R44 increases, the voltage divider ratio increases, and the output voltage increases, enabling the microcontroller U5 to calculate the current ambient light intensity value after acquiring the output voltage, in conjunction with a preset algorithm.

[0035] like Figure 1 and Figure 2As shown, in one embodiment, the GPS submodule 110 includes a positioning communication chip U10 and a second filter capacitor C17. The positioning information output terminal UART1_TX of the positioning communication chip U10 is connected to the positioning information detection terminal UART1_RX. One end of the second filter capacitor C17 is connected to the power supply terminal of the positioning communication chip U10, which is used to connect to an external power source. The other end of the second filter capacitor C17 is grounded. In this embodiment, the positioning communication chip U10 receives signals from GPS satellites through its built-in antenna. Then, the positioning communication chip U10 decodes and processes the received signals to calculate the current geographical location and time information. The parsed information is then transmitted through the positioning information output terminal UART1_TX to the positioning information detection terminal UART1_RX of the microcontroller U5, enabling the microcontroller U5 to obtain geographical location and time information in a timely manner. In addition, since the second filter capacitor C17 is connected between the power supply terminal of the positioning communication chip U10 and ground, when there is high-frequency noise or voltage fluctuation in the power supply, the second filter capacitor C17 can absorb these interferences and prevent them from affecting the normal operation of the positioning communication chip U10, thereby ensuring the stable operation of the positioning communication chip U10.

[0036] like Figure 1 and Figure 2 As shown, in one embodiment, the wireless communication submodule 120 includes a wireless communication chip U3 and a second voltage divider resistor L12. The wireless communication data terminal UART2_TX of the wireless communication chip U3 is connected to the wireless communication receiver terminal UART2_RX. The second voltage divider resistor L12 is connected in series between the external power supply terminal and the power supply terminal of the wireless communication chip U3. In this embodiment, the wireless communication chip U3, according to the instructions of the microcontroller U5, sends a request to the cloud server via wireless communication technology (such as Wi-Fi, Bluetooth, or cellular network) to exchange data and obtain weather data of the current geographical location. Then, the wireless communication chip U3 receives the weather data returned by the cloud server and then transmits the weather data to the wireless communication receiver terminal UART2_RX of the microcontroller U5 via the wireless communication data terminal UART2_TX for further processing by the microcontroller U5. In addition, since the second voltage divider resistor L12 is connected in series between the external power supply terminal and the power supply terminal of the wireless communication chip U3, the second voltage divider resistor L12 reduces the voltage of the external power supply through the voltage divider principle, making it meet the rated operating voltage requirements of the wireless communication chip U3, thereby ensuring a stable power supply for the wireless communication chip U3.

[0037] like Figure 1 and Figure 2As shown, in one embodiment, the intelligent dynamic rhythm lighting control circuit 10 further includes a chip current-limiting resistor L8, which is connected in series between the external power supply terminal and the power supply terminal of the microcontroller U5. In this embodiment, the main function of the chip current-limiting resistor L8 is to limit the current flowing into the microcontroller U5, ensuring that the microcontroller U5 operates within a stable voltage and current range, while protecting the microcontroller U5 from power fluctuations or overcurrent damage. Specifically, when the external power supply voltage fluctuates, the chip current-limiting resistor L8 can buffer voltage changes, preventing the microcontroller U5 from malfunctioning due to excessively high or low voltage. Furthermore, when the external power supply experiences overcurrent due to a fault or other reasons, the chip current-limiting resistor L8 can effectively limit the current, preventing excessive current from damaging the internal circuitry or chip of the microcontroller U5, thereby providing a stable power supply environment for the microcontroller U5.

[0038] like Figure 1 As shown, in one embodiment, the intelligent dynamic rhythm lighting control circuit 10 further includes a filter resistor R6 and a first filter capacitor C13. One end of the filter resistor R6 is connected to the power supply terminal of the microcontroller U5, and the other end of the filter resistor R6 is connected to the first terminal of the first filter capacitor C13. The second terminal of the first filter capacitor C13 is grounded. In this embodiment, the filter resistor and the first filter capacitor together constitute a simple RC filter circuit. As part of the RC filter circuit, the filter resistor mainly functions to limit current and attenuate high-frequency signals. When there is high-frequency noise in the external power supply, the filter resistor can limit the interference signal from flowing directly into the microcontroller U5, thereby reducing the impact of the interference signal on the microcontroller U5. At the same time, the filter resistor and the first filter capacitor work together to form a low-pass filtering effect for high-frequency noise, that is, allowing low-frequency signals to pass through while attenuating high-frequency noise. In addition, the first filter capacitor C13 utilizes the charging and discharging characteristics of the capacitor to smooth voltage fluctuations in the power supply. When the external power supply voltage rises, the first filter capacitor charges and absorbs excess power; when the power supply voltage drops, the first filter capacitor discharges, thus enabling the first filter capacitor to effectively reduce the fluctuation range of the power supply voltage and provide a more stable power environment for the microcontroller U5.

[0039] like Figures 1 to 4As shown, in one embodiment, the light source module 200 includes a main lighting submodule 210 and a mixed-light skylight submodule 220. The first PWM signal receiving terminal of the main lighting submodule 210 is connected to the first PWM signal transmitting terminal of the microcontroller U5, and the second PWM signal receiving terminal of the mixed-light skylight submodule 220 is connected to the second PWM signal transmitting terminal of the microcontroller U5. In this embodiment, the main lighting submodule 210 receives the PWM control signal sent by the microcontroller U5 through the first PWM signal receiving terminal. According to the duty cycle of the PWM signal, the main lighting submodule 210 adjusts the current output to the lighting load, thereby changing the brightness of the lighting load. Furthermore, by adjusting the duty cycle of the PWM signal, the main lighting submodule 210 can also adjust the color temperature to meet the lighting needs of different scenarios. The mixed-light skylight submodule 220 receives the PWM control signal sent by the microcontroller U5 through the second PWM signal receiving terminal and adjusts the proportion of different wavelengths of light through multi-channel LED mixing technology to simulate the spectral characteristics of natural light. This allows the main lighting submodule 210 to provide stable basic lighting, meeting the basic needs of users' daily activities; while the mixed-light skylight submodule 220 provides users with a diverse and comfortable lighting environment by simulating changes in natural light.

[0040] like Figure 1 and Figure 3As shown, in one embodiment, the main lighting submodule 210 includes a dimming control chip U6, a main lighting control chip U7, a first electronic switch Q3, and a second electronic switch Q2. The dimming signal receiving terminal DIM of the dimming control chip U6 is connected to the dimming signal output terminal PA11 of the microcontroller U5. The warm and cool light signal receiving terminal PWM_CCT of the main lighting control chip U7 is connected to the warm and cool light signal control terminal PA4 of the microcontroller U5. The first terminal of the first electronic switch Q3 is used to connect to the warm light lighting load, and the first terminal of the second electronic switch Q2 is used to connect to the cool light lighting load. The control terminal of the first electronic switch Q3 is connected to the first output terminal of the main lighting control chip U7, and the control terminal of the second electronic switch Q2 is connected to the second output terminal of the main lighting control chip U7. The second terminals of the first electronic switch Q3 and the second electronic switch Q2 are respectively connected to the switching signal terminals of the dimming control chip U6. In this embodiment, the dimming control chip U6 receives the dimming signal sent by the microcontroller U5 through the dimming signal receiver DIM. Then, the dimming control chip U6 generates a switch control signal according to the duty cycle of the dimming signal and outputs it to the second terminals of the first electronic switch Q3 and the second electronic switch Q2. By controlling the duty cycle of the switch signal, the current flowing through the first electronic switch Q3 and the second electronic switch Q2 is adjusted, thereby adjusting the current output to the lighting load to change the brightness of the lighting load. The main lighting control chip U7 receives the PWM signal sent by the microcontroller U5 through the PWM_CCT terminal for both warm and cool light signals. Based on the duty cycle of the PWM signal output by the microcontroller U5, it generates a switching control signal and outputs it to the control terminals of the first electronic switch Q3 and the second electronic switch Q2 respectively. By controlling the switching states of the first electronic switch Q3 and the second electronic switch Q2, the main lighting control chip U7 can adjust the current ratio of the warm light lighting load and the cool light lighting load, thereby changing the color temperature of the lighting load, thus meeting the brightness and color temperature requirements of different scenarios, and providing users with a more comfortable lighting environment.

[0041] like Figure 1 and Figure 4As shown, in one embodiment, the mixed-light skylight submodule 220 includes a green light control chip U2, a blue light control chip U8, and a white light control chip U8-3. The blue light PWM signal receiving terminal PWM_B of the blue light control chip U8 is connected to the blue light PWM signal output terminal PA7 of the microcontroller U5. The white light PWM signal receiving terminal PWM_W of the white light control chip U8-3 is connected to the white light PWM signal output terminal PA6 of the microcontroller U5. The green light PWM signal receiving terminal PWM_G of the green light control chip U2 is connected to the green light PWM signal output terminal PA8 of the microcontroller U5. The output terminal of the blue light control chip U8 is used to connect to the blue light LED load, the output terminal of the green light control chip U2 is used to connect to the green light LED load, and the output terminal of the white light control chip U8-3 is used to connect to the white light LED load. In this embodiment, the green light control chip U2, the blue light control chip U8, and the white light control chip U8-3 receive the PWM signals sent by the microcontroller U5 through the green light PWM signal receiver PWM_G, the blue light PWM signal receiver PWM_B, and the white light PWM signal receiver PWM_W, respectively. Then, the green light control chip U2,

[0042] The blue light control chip U8 and the white light control chip U8-3 generate corresponding drive current signals based on the duty cycles of different PWM signals and output them to the corresponding LED loads, thereby precisely adjusting the brightness of the three types of LED loads and controlling the proportion of different light colors in the mixed light. Furthermore, the green light control chip U2, the blue light control chip U8, and the white light control chip U8-3 can dynamically adjust the brightness ratio of each color light according to the instructions of the microcontroller U5, so that the mixed light sky light submodule 220 can accurately simulate the natural light spectrum characteristics of blue sky and white clouds. Combined with the function of the main lighting submodule 210, it can simulate the changing effects of natural light such as sunrise, sunset, sunny days, and cloudy days.

[0043] This application also provides a lighting fixture, including an intelligent dynamic rhythm lighting control circuit 10 according to any embodiment. In this embodiment, when the intelligent lighting system is started, the GPS submodule 110 acquires the current geographical location and time information and sends it to the microcontroller U5; simultaneously, the ambient light sensing submodule 130 monitors the light intensity of the environment where the lighting fixture is located in real time and sends the data to the microcontroller U5; in addition, the wireless communication submodule 120 acquires the weather data of the current geographical location from the cloud in real time through wireless communication technology and then sends it to the microcontroller U5. Next, the microcontroller U5 dynamically generates the target color temperature and brightness curve according to the internally preset biorhythm algorithm, combined with the geographical location, time and weather data, and outputs multi-channel PWM control signals to the light source module 200. After receiving the PWM control signals output by the microcontroller U5, the light source module 200 adjusts the current output to the lighting load by changing the PWM duty cycle, thereby changing the brightness and color temperature of the lighting load, and thus simulating the changes of natural light with time, weather and geographical location. On the other hand, the ambient light sensing submodule 130, GPS submodule 110, and wireless communication submodule 120 acquire the latest data and continuously feed it back to the microcontroller U5. Based on the feedback data and optimized rhythm control parameters, the microcontroller U5 automatically adjusts the output PWM control signal to achieve adaptive adjustment of the light source module 200, thereby better simulating changes in natural light and meeting user needs.

[0044] Compared with the prior art, this disclosure has at least the following advantages:

[0045] The aforementioned intelligent dynamic rhythmic lighting control circuit 10 acquires real-time geographical location, time, weather data, and ambient light intensity through the microcontroller U5. Combined with a preset biorhythm model control algorithm, it calculates suitable color temperature and brightness curves and outputs corresponding PWM control signals to the light source module 200. This precisely adjusts the brightness and color temperature of the lighting load in the light source module 200, achieving simulated lighting effects that dynamically change with region, season, weather, and time. This overcomes the problem of traditional lamps having fixed brightness and color temperature, which prevents the automation of rhythmic lighting. Furthermore, the microcontroller U5 acquires the latest geographical location, time, weather, and ambient light intensity data in real time and establishes a feedback optimization system. This allows the microcontroller U5 to automatically adjust the output PWM control signal, enabling the light source module 200 to synchronously complete adaptive adjustments, thereby improving the user experience.

[0046] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. An intelligent dynamic rhythmic lighting control circuit, characterized in that, Includes a microcontroller, an environmental information sensing module, and a light source module. The environmental information sensing module includes a GPS submodule, a wireless communication submodule, and an ambient light sensing submodule. The GPS submodule is used to obtain the current geographical location and time information, the ambient light sensing submodule is used to monitor the ambient light intensity in real time, and the wireless communication submodule is used to obtain weather data from the cloud in real time. The light source module is used to receive PWM control signals from multiple channels output by the microcontroller, and to output different current signals to each channel lighting load by adjusting the PWM duty cycle of multiple channels, so as to dynamically adjust the brightness and color temperature of the lamp. The light intensity detection signal terminal of the microcontroller is connected to the light intensity output signal terminal of the ambient light sensing submodule, the positioning information detection terminal of the microcontroller is connected to the positioning information output terminal of the GPS submodule, the wireless communication receiving terminal of the microcontroller is connected to the wireless communication data terminal of the wireless communication submodule, and the PWM signal output terminal of the microcontroller is connected to the PWM signal receiving terminal of the light source module.

2. The intelligent dynamic rhythm lighting control circuit according to claim 1, characterized in that, The ambient light sensing submodule includes a first voltage divider resistor and a photoresistor. The first end of the first voltage divider resistor is connected to an external power supply, the second end of the first voltage divider resistor is connected to the first end of the photoresistor, the first end of the photoresistor is connected to the light intensity detection signal terminal, and the second end of the photoresistor is grounded.

3. The intelligent dynamic rhythm lighting control circuit according to claim 1, characterized in that, The GPS submodule includes a positioning communication chip and a second filter capacitor. The positioning information output terminal of the positioning communication chip is connected to the positioning information detection terminal. One end of the second filter capacitor is connected to the power supply terminal of the positioning communication chip. The power supply terminal of the positioning communication chip is used to connect to an external power source. The other end of the second filter capacitor is grounded.

4. The intelligent dynamic rhythm lighting control circuit according to claim 1, characterized in that, The wireless communication submodule includes a wireless communication chip and a second voltage divider resistor. The wireless communication data terminal of the wireless communication chip is connected to the wireless communication receiver terminal, and the second voltage divider resistor is connected in series between the external power supply terminal and the power supply terminal of the wireless communication chip.

5. The intelligent dynamic rhythm lighting control circuit according to claim 1, characterized in that, The intelligent dynamic rhythm lighting control circuit also includes a microcontroller current-limiting resistor chip, which is connected in series between the external power supply terminal and the power supply terminal of the microcontroller.

6. The intelligent dynamic rhythm lighting control circuit according to claim 5, characterized in that, The intelligent dynamic rhythm lighting control circuit also includes a filter resistor and a first filter capacitor. One end of the filter resistor is connected to the power supply terminal of the microcontroller, and the other end of the filter resistor is connected to the first end of the first filter capacitor. The second end of the first filter capacitor is grounded.

7. The intelligent dynamic rhythm lighting control circuit according to claim 1, characterized in that, The light source module includes a main illumination submodule and a mixed-light skylight submodule. The first PWM signal receiving terminal of the main illumination submodule is connected to the first PWM signal transmitting terminal of the microcontroller, and the second PWM signal receiving terminal of the mixed-light skylight submodule is connected to the second PWM signal transmitting terminal of the microcontroller.

8. The intelligent dynamic rhythm lighting control circuit according to claim 7, characterized in that, The main lighting submodule includes a dimming control chip, a main lighting control chip, a first electronic switch, and a second electronic switch. The dimming signal receiving end of the dimming control chip is connected to the dimming signal output end of the microcontroller. The warm and cool light signal receiving end of the main lighting control chip is connected to the warm and cool light signal control end of the microcontroller. The first end of the first electronic switch is used to connect to the warm light lighting load, and the first end of the second electronic switch is used to connect to the cool light lighting load. The control end of the first electronic switch is connected to the first output end of the main lighting control chip, and the control end of the second electronic switch is connected to the second output end of the main lighting control chip. The second ends of the first and second electronic switches are respectively connected to the switching signal end of the dimming control chip.

9. The intelligent dynamic rhythm lighting control circuit according to claim 7, characterized in that, The mixed-light skylight submodule includes a green light control chip, a blue light control chip, and a white light control chip. The blue light PWM signal receiving end of the blue light control chip is connected to the blue light PWM signal output end of the microcontroller. The white light PWM signal receiving end of the white light control chip is connected to the white light PWM signal output end of the microcontroller. The green light PWM signal receiving end of the green light control chip is connected to the green light PWM signal output end of the microcontroller. The output end of the blue light control chip is used to connect to a blue LED load. The output end of the green light control chip is used to connect to a green LED load. The output end of the white light control chip is used to connect to a white LED load.

10. A lighting fixture, characterized in that, Including the intelligence as described in any one of claims 1 to 9 Dynamic rhythm lighting control circuit.

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