Time control method and system for automatically adjusting brightness of lamp

Abstract

The invention discloses a time control method for automatically adjusting the brightness of a lamp, and the method comprises the steps: detecting an environment brightness value in real time through a brightness induction module, and comparing the environment brightness value with a lighting reference value; if the ambient brightness value is smaller than the lighting reference value, entering a night mode, lighting at high brightness, and starting timing at night; in the night mode, whether the low-brightness time is larger than 0 or not is judged, if yes, the brightness is adjusted to be low brightness at the first adjusting time, the brightness is adjusted to be high brightness at the second adjusting time, and if not, the high brightness is kept; the control module compares the environment brightness value with a light-off reference value; and if the ambient brightness value is greater than the turn-off reference value, triggering to enter a daytime mode, turning off the LED light source, and ending the timing of the night time. The invention also discloses a system used by the time control method for automatically adjusting the brightness of the lamp. Therefore, the purpose of automatically adjusting the illumination brightness at night is achieved, and the system has the characteristics of intelligentization and energy and power saving.

Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent lighting, and particularly relates to a time control method and system for automatically adjusting the brightness of lamps. Background Art

[0002] With the continuous development of smart home technology, people's demand for the intelligence of lighting systems is increasing day by day. Traditional lighting systems usually can only manually adjust the brightness and switch, and cannot automatically adjust according to the ambient light and time, resulting in energy waste and poor lighting effects.

[0003] At present, there are already a variety of technologies for automatically adjusting the brightness of lamps applied to outdoor lighting. Most of these technologies are based on light sensors, and automatically adjust the brightness of lighting lamps by detecting the intensity of outdoor ambient light. When it is dark at night and the ambient brightness is lower than a certain brightness, the lighting lamps are turned on, and when it is bright during the day and the ambient brightness is higher than a certain brightness, the lighting lamps are turned off.

[0004] However, most of these technologies can only achieve single light sensing adjustment, and cannot perform intelligent adjustment according to the change of time and the specific needs of users. They always use the highest brightness during night lighting and cannot automatically adjust to low brightness when there is no one in the late night, resulting in great energy waste.

[0005] Therefore, there is an urgent need for a time control method that can comprehensively consider time, ambient light intensity, and user needs to achieve automatic adjustment of the brightness of lamps. Summary of the Invention

[0006] The purpose of the present invention is to provide a time control method for automatically adjusting the brightness of lamps to solve the problems raised in the above background art. A time control method for automatically adjusting the brightness of lamps provided by the present invention has the characteristics of automatically adjusting the lighting brightness according to different times, thereby achieving automatic adjustment of lighting brightness at night, energy saving and intelligence.

[0007] Another purpose of the present invention is to provide a system used in the time control method for automatically adjusting the brightness of lamps.

[0008] To achieve the above purpose, the present invention provides the following technical solutions: A time control method for automatically adjusting the brightness of lamps includes the following steps:

[0009] S1. When the lamp is powered on, the ambient brightness value is detected in real time through the brightness sensing module, and the control module compares the ambient brightness value with the lighting reference value;

[0010] S2. If the ambient brightness value is less than the lighting reference value, it triggers to enter the night mode, controls the LED light source to light up with high brightness, and starts the night time counting;

[0011] S3. In the night mode, the control module determines whether the low brightness time TL is greater than 0. If so, it adjusts the brightness to low brightness at the first adjustment time T3 and adjusts the brightness to high brightness at the second adjustment time T4. If not, it maintains the high brightness;

[0012] S4. The brightness sensing module continuously detects the ambient brightness value, and the control module compares the ambient brightness value with the light-off reference value;

[0013] S5. If the ambient brightness value is greater than the light-off reference value, it triggers the entry into the day mode, turns off the LED light source, and ends the night time counting.

[0014] Further in the present invention, the method for counting the night time includes the following steps:

[0015] A1. The time when entering the night mode is recorded as T1;

[0016] A2. After a delay time TD, it enters the night time counting, and the time is recorded as T2 at this time;

[0017] A3. The time when entering the day mode is recorded as T5;

[0018] A4. After a delay time TD, it stops the night time counting, and the time is recorded as T6 at this time;

[0019] A7. Obtain the night time TN, TN = T6 - T2, and store the value of the night time TN in the memory.

[0020] Further in the present invention, the storage capacity of the memory is 10 groups of values, and the data is updated following the principle of first in first out after it is full.

[0021] Further in the present invention, the calculation method of the low brightness time TL includes the following steps:

[0022] B1. Set the first high brightness time TH1 and the second high brightness duration TH2;

[0023] B2. The control module retrieves several groups of night time TN data from the memory;

[0024] B3. Calculate the average value of the night time

[0025] B4. Then, based on the average value of the night time Calculate the low brightness time TL, the first adjustment time T3, and the second adjustment time T4.

[0026] Further in the present invention, the low brightness time The first adjustment time T3 = T1 + TH1; the second adjustment time T4 = T3 + TL.

[0027] In the present invention, further, in step S2, if the environmental brightness value is greater than the lighting reference value, the night time count is cleared.

[0028] In the present invention, further, in step B4, after calculating the low brightness time TL, the first adjustment time T3, and the second adjustment time T4, the night time count is cleared.

[0029] In the present invention, further, the high brightness is 100% brightness, and the low brightness is 30% - 50% brightness.

[0030] In the present invention, further, there is provided a system used for the time control method of automatically adjusting the brightness of a lamp, including an LED light source, an LED driving module, a power supply module, a brightness sensing module, and a control module. Among them, the LED light source is used for emitting light, the LED driving module is used for driving the LED light source, the power supply module is used for providing the required voltage for the LED light source, the LED driving module, the brightness sensing module, and the control module, the brightness sensing module is used for real-time monitoring of the environmental brightness value, and the control module is used for signal transceiver and storage and calculation of night time data.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0032] 1. The present invention realizes the automatic control of the switch of the LED light source by real-time monitoring of the environmental brightness through the brightness sensing module, and automatically adjusts the lighting brightness according to different times at night, so as to achieve the purpose of automatically adjusting the lighting brightness at night, with the characteristics of intelligence and energy saving;

[0033] 2. The present invention respectively sets a lighting reference value and a light extinguishing reference value, which can effectively prevent the situation of lighting and extinguishing alternately when the environmental change fluctuates greatly;

[0034] 3. After the present invention enters the night mode, the night time count starts after the delay time TD, and after entering the day mode, the night time count ends after the delay time TD, which can effectively avoid false triggering caused by sudden changes in environmental light brightness and other reasons, so as to ensure the accuracy of the night time count;

[0035] 4. The present invention calculates the low brightness time TL of the next night based on the average value of the night time in the previous ten days to realize the intelligent adjustment of the night time;

[0036] 5. When the environmental brightness value is greater than the lighting reference value in the present invention, and after calculating the low brightness time TL, the first adjustment time T3, and the second adjustment time T4, the night time count is cleared, ensuring that the start of the night time count starts from 0, thus ensuring the accuracy of the night time count. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Schematic diagram of the timing for brightness adjustment of the present invention;

[0038] Figure 2 Flow chart of the brightness adjustment of the present invention. Detailed implementation manners

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] Embodiment 1

[0041] Please refer to Figure 1 - Figure 2 , the present invention provides the following technical solutions: a time control method for automatically adjusting the brightness of a lamp, including the following steps:

[0042] S1. When the lamp is powered on, the ambient brightness value is detected in real time through the brightness sensing module, and the control module compares the ambient brightness value with the lighting reference value;

[0043] S2. If the ambient brightness value is less than the lighting reference value, it triggers the entry into the night mode, controls the LED light source to light up at high brightness, and starts the night time timing;

[0044] S3. In the night mode, the control module determines whether the low brightness time TL is greater than 0. If so, the brightness is adjusted to low brightness at the first adjustment time T3 and adjusted to high brightness at the second adjustment time T4. If not, the high brightness is maintained;

[0045] S4. The brightness sensing module detects the ambient brightness value in real time, and the control module compares the ambient brightness value with the extinguishing reference value;

[0046] S5. If the ambient brightness value is greater than the extinguishing reference value, it triggers the entry into the day mode, turns off the LED light source, and ends the night time timing.

[0047] By adopting the above technical solutions, the present invention can automatically control the on / off of the LED light source by detecting the ambient brightness in real time through the brightness sensing module, and automatically adjust the lighting brightness according to different times at night, so as to achieve the purpose of automatically adjusting the lighting brightness at night, with the characteristics of intelligence and energy saving; the present invention respectively sets the lighting reference value and the extinguishing reference value, which can effectively prevent the situation of lighting on and off alternately when the environmental change fluctuates greatly.

[0048] Specifically, the timing method for the night time includes the following steps:

[0049] A1. The time when entering the night mode is recorded as T1;

[0050] A2. After the delay time TD, enter the night time counting, and the time at this time is recorded as T2; the value range of the delay time TD is preferably 0.5h - 1h, and in this embodiment, it is preferably 0.5h.

[0051] A3. The time when entering the day mode is recorded as T5;

[0052] A4. After the delay time TD, the value range of the delay time TD is preferably 0.5h - 1h, and in this embodiment, it is preferably 0.5h. Stop the night time counting, and the time at this time is recorded as T6;

[0053] A7. Obtain the night time TN, TN = T6 - T2, and store the value of the night time TN in the memory.

[0054] By adopting the above technical solution, after the present invention enters the night mode, it starts the night time counting after the delay time TD, and after entering the day mode, it also ends the night time counting after the delay time TD, which can effectively avoid mis - triggering caused by sudden changes in ambient light brightness and other reasons, thus ensuring the accuracy of night time counting.

[0055] Specifically, the storage capacity of the memory is 10 groups of values, and after it is full, the data is updated following the principle of first - in - first - out.

[0056] Specifically, the high brightness is 100% brightness, and the low brightness is 30% - 50% brightness. In this embodiment, the low brightness is preferably 50% brightness.

[0057] Embodiment 2

[0058] The difference between this embodiment and Embodiment 1 is that specifically, the calculation method of the low - brightness time TL includes the following steps:

[0059] B1. Set the first high - brightness time TH1 and the second high - brightness duration TH2. The preferred interval of TH1 is 4 - 6h, and the preferred interval of TH2 is 0.5 - 2h. In this implementation, TH1 is preferably 5h and TH2 is preferably 1h, both of which are set before leaving the factory;

[0060] B2. The control module retrieves several groups of night - time TN data from the memory;

[0061] B3. Calculate the average value of the night time

[0062] B4. Then, based on the average value of the night time Calculate the low - brightness time TL, the first adjustment time T3, and the second adjustment time T4.

[0063] Specifically, the low - brightness time The first adjustment time T3 = T1 + TH1; the second adjustment time T4 = T3 + TL.

[0064] By adopting the above technical solution, the present invention calculates the low brightness time TL of the next night based on the average value of the night time in the previous ten days, realizing the intelligent adjustment of the night time.

[0065] Embodiment 3

[0066] The difference between this embodiment and Embodiment 1 is that specifically, in step S2, if the environmental brightness value is greater than the lighting reference value, the night time timing is cleared.

[0067] Specifically, in step B4, after calculating the low brightness time TL, the first adjustment time T3, and the second adjustment time T4, the night time timing is cleared.

[0068] By adopting the above technical solution, it is ensured that the start of the night time timing starts from 0, thus ensuring the accuracy of the night time timing.

[0069] Embodiment 4

[0070] Furthermore, the system used in the time control method for automatically adjusting the brightness of a lamp according to the present invention includes an LED light source, an LED driving module, a power supply module, a brightness sensing module, and a control module. Among them, the LED light source is used for emitting light, the LED driving module is used for driving the LED light source, the power supply module is used for providing the required voltage for the LED light source, the LED driving module, the brightness sensing module, and the control module, the brightness sensing module is used for real-time monitoring of the environmental brightness value, and the control module is used for signal transceiver and storage and calculation of night time data.

[0071] In this embodiment, both the LED driving and power supply modules are selected as the BQE155C-130-PVF-AUX type driving power supply of Dongguan Beiqi Electronic Technology Co., Ltd.; the brightness sensing module is selected as the UCS11161 light sensor of ULTRA CAPTEUR; the chip of the control module is selected as the HC89S003AF4 type single-chip microcomputer of Shanghai Xinsheng.

[0072] In summary, the present invention monitors the ambient brightness in real time through a brightness sensing module to achieve automatic control of the LED light source switch. Moreover, during night lighting, the lighting brightness is automatically adjusted according to different times, thereby achieving the purpose of automatically adjusting the lighting brightness at night, and having the characteristics of intelligence and energy saving; the present invention separately sets a lighting reference value and a turning-off reference value, which can effectively prevent the situation of the light turning on and off alternately when the environmental change fluctuates greatly; after the present invention enters the night mode, the night time counting starts after a delay time TD, and after entering the day mode, the night time counting also ends after a delay time TD, which can effectively avoid false triggering caused by sudden changes in ambient light brightness and other reasons, thereby ensuring the accuracy of night time counting; the present invention calculates the low brightness time TL of the next night based on the average value of the night times of the previous ten days to achieve intelligent adjustment of the night time; when the ambient brightness value is greater than the lighting reference value, and after calculating the low brightness time TL, the first adjustment time T3, and the second adjustment time T4, the present invention clears the night time counting to ensure that the start of night time counting starts from 0, thereby ensuring the accuracy of night time counting.

[0073] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A time control method for automatically adjusting the brightness of a lamp, characterized in that: The following steps are involved: S1. The lamp is powered on, and the brightness sensor module detects the ambient brightness value in real time. The control module compares the ambient brightness value with the lighting reference value. S2. If the ambient brightness value is lower than the lighting reference value, the system triggers the night mode, controls the LED light source to light up at high brightness, and starts the night time timing; S3. In night mode, the control module determines whether the low brightness time TL is greater than 0. If so, the brightness is adjusted to low brightness at the first adjustment time T3 and to high brightness at the second adjustment time T4. If not, the high brightness is maintained. S4, the brightness sensing module detects the ambient brightness value in real time, and the control module compares the ambient brightness value with the light-off reference value; S5. If the ambient brightness value is greater than the light-off reference value, the day mode is triggered, the LED light source is turned off, and the night time timing ends; The timing method of the night time comprises the following steps: A1, the time when entering night mode is recorded as T1; A2, after the delay time TD, the night time starts, and the time is recorded as T2; A3, the time when entering the day mode is recorded as T5; A4, after the delay time TD, stop the night time timing, and the time at this time is recorded as T6; A7. Get the night time TN, TN=T6-T2, and store the value of the night time TN in the memory.

2. A time control method for automatically adjusting the brightness of a lamp according to claim 1, characterized in that: The storage capacity of the memory is 10 groups of values, and after it is full, the data is updated according to the first-in-first-out principle.

3. A time control method for automatically adjusting the brightness of a lamp according to claim 1, characterized in that: The method for calculating the low brightness time TL comprises the following steps: B1, setting the first high brightness time TH1 and the second high brightness time TH2; B2, the control module retrieves several groups of night time TN data in the memory; B3. Calculate the average value of night time B4, then according to the average value of night time The low brightness time TL, the first adjustment time T3 and the second adjustment time T4 are calculated.

4. A time control method for automatically adjusting the brightness of a lamp according to claim 3, characterized in that: The low brightness time The first adjustment time T3 = T1 + TH1; The second adjustment time T4=T3+TL.

5. A time control method for automatically adjusting the brightness of a lamp according to claim 1, characterized in that: In step S2, if the ambient brightness value is greater than the lighting reference value, the night time counter is reset.

6. A time control method for automatically adjusting the brightness of a lamp according to claim 3, characterized in that: In the step B4, after the low brightness time TL, the first adjustment time T3 and the second adjustment time T4 are calculated, the night time timing is reset.

7. A time control method for automatically adjusting the brightness of a lamp according to claim 1, characterized in that: The high brightness is 100% brightness, and the low brightness is 30%-50% brightness.

8. A system used in a time control method for automatically adjusting the brightness of a lamp according to any one of claims 1 to 7, characterized in that: It includes an LED light source, an LED driver module, a power module, a brightness sensing module and a control module, wherein the LED light source is used to emit light, the LED driver module is used to drive the LED light source, the power module is used to provide the required voltage for the LED light source, the LED driver module, the brightness sensing module and the control module, the brightness sensing module is used to monitor the ambient brightness value in real time, and the control module is used to send and receive signals as well as store and calculate night time data.

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