Control method of energy-saving lighting lamp powered by solar photovoltaic and commercial power complementarily

Abstract

The invention discloses a control method of an energy-saving lighting lamp powered by solar photovoltaic and commercial power complementarily, which belongs to the technical field of lamp control, and comprises the following steps: step 1, dividing the lighting lamp into a plurality of control sections, and setting a power supply priority; 2, obtaining the photovoltaic electric quantity of each control section, the storage capacity of a storage battery and the electricity consumption of an illumination lamp, and judging whether the electric quantity needs to be controlled and managed or not; step 3, performing corresponding management on the electric quantity according to a judgment result; and 4, performing an energy-saving regulation and control strategy on the illumination lamp group according to the illumination parameter information of the control section and the historical data information. According to the invention, whether the photovoltaic electric quantity and the storage battery electric quantity in each control section meet the power utilization of the current lighting lamp is analyzed, and the corresponding electric quantity control management is carried out, so that the electric quantity can be dynamically regulated and controlled according to the power utilization condition and the power generation condition in each time period, and the electric energy is stored while the power utilization requirement is met.

Description

Technical Field

[0001] The present invention belongs to the technical field of lamp control, and particularly relates to a control method for energy-saving lighting lamps with complementary power supply of solar photovoltaic and mains electricity. Background Art

[0002] With the growing global demand for sustainable energy and the increasing awareness of environmental protection, solar energy, as a clean and renewable energy source, has received extensive attention. Especially in urban lighting systems, the use of solar photovoltaic technology to complement the mains electricity to provide power for lighting fixtures and other facilities not only helps to save energy and reduce emissions but also improves energy utilization efficiency.

[0003] In the existing mutual conversion and power supply between photovoltaic power and mains electricity, generally, the weather of the day is used to predict whether the photovoltaic power generation is sufficient to supply power to the lighting fixtures, so as to judge whether it is necessary to connect to the mains electricity. However, since the photovoltaic power generation and the electricity consumption of the lighting fixtures are different in different time periods, if only the overall weather condition of the day is used for prediction, the result will not be accurate enough, thus affecting the electricity consumption situation in a certain period. In addition, when adjusting the brightness of existing lighting fixtures, generally, a fixed lighting brightness is set in advance according to the historical lighting situation in a certain time period to achieve brightness adjustment; however, under the influence of the weather, the ambient light in different time periods is different. If adjusted fixedly, the adjustment result is not accurate enough, resulting in insufficient lighting demand or excessive power consumption. Summary of the Invention

[0004] The purpose of the present invention is to provide a control method for energy-saving lighting lamps with complementary power supply of solar photovoltaic and mains electricity to solve the problems faced in the above background art.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A control method for energy-saving lighting lamps with complementary power supply of solar photovoltaic and mains electricity, the control method comprising:

[0007] Step 1: Divide the lighting fixtures into multiple control sections according to the electricity consumption habits of the lighting fixture group, and set the power supply priority. Solar photovoltaic power supply has priority over battery power supply, and battery power supply has priority over mains electricity supply;

[0008] Step 2: Obtain the photovoltaic power, battery storage power, and lighting fixture power consumption of each control section, and judge whether it is necessary to control and manage the power;

[0009] Step 3: Perform corresponding management on the power according to the judgment result, including charging and discharging of the battery and connecting to the mains electricity supply;

[0010] Step 4: Based on the illuminance parameter information and historical data information of the control section, conduct comprehensive analysis and perform corresponding energy-saving regulation strategies on the lighting fixture group.

[0011] Furthermore, the method for obtaining the photovoltaic power and the power consumption of the lighting fixtures in Step 2 is as follows:

[0012] Obtain the light intensity of the current control section from the meteorological bureau , temperature , sunshine duration and atmospheric transmittance , and then predict the photovoltaic power through the formula , where is the effective area of the photovoltaic panel, is the photovoltaic conversion efficiency, is the temperature attenuation coefficient;

[0013] , is the temperature power coefficient, is the working temperature of the photovoltaic panel;

[0014] Obtain the power consumption of the lighting fixtures in the same control section every day within the previous days from historical data, so as to obtain the first average power consumption , obtain the power consumption of the lighting fixtures in the same control section on the same day of the same week in the previous month from historical data, so as to obtain the second average power consumption , obtain the power consumption of the lighting fixtures in the same control section on the same day of the same week in the same month in the previous n years from historical data, so as to obtain the third average power consumption , and then calculate the power consumption of the lighting fixtures through the formula , is the environmental compensation coefficient.

[0015] Furthermore, the method for obtaining the environmental compensation coefficient is as follows:

[0016] According to the area where the lighting fixtures are located and the environmental conditions, obtain the weather information at the same time period on the same day;

[0017] When it is heavy rain, heavy snow or thick fog weather, then let ; when it is moderate rain, moderate snow or foggy weather, then let ; when it is light rain, light snow or light fog weather, then let ; when it is cloudy weather, then let ; when it is sunny weather, then let .

[0018] Further, the method for determining whether power control and management are required in the second step is as follows:

[0019] When occurs, power control and management are not required. At this time, the solar photovoltaic panel continues to supply power to the lighting fixtures. Otherwise, power control and management are required.

[0020] Further, the method for control and management in the third step is as follows:

[0021] When occurs, the battery pack is controlled to charge. At this time, units of electricity are charged into the battery pack;

[0022] When occurs, the stored electricity of the battery is obtained . If , the battery pack is controlled to discharge. At this time, the battery pack discharges units of electricity for the lighting fixtures to use;

[0023] When occurs, the battery is controlled to discharge while the mains power is connected for the lighting fixtures to use.

[0024] Further, the method for implementing corresponding energy-saving regulation strategies for the lighting fixture group in the fourth step is as follows:

[0025] The energy-saving regulation strategies include a brightness increase command, a brightness decrease command, and a hold command. When the increase command is generated, the brightness of the lighting fixtures is increased at this time. When the brightness decrease command is generated, the brightness of the lighting fixtures is decreased at this time. When the hold command is generated, the current brightness of the lighting fixtures is maintained;

[0026] Specifically, multiple regulation time nodes are set within the control section, and the illuminance values at each regulation time node are obtained . When occurs, the hold command is generated. When occurs, the brightness increase command is generated. When occurs, the brightness decrease command is generated, where and are the standard illuminance thresholds for this control time node.

[0027] Further, the method for implementing corresponding energy-saving regulation strategies for the lighting fixture group in the fourth step also includes:

[0028] Obtain the average illuminance value between the current regulation time node and the previous regulation time node , and obtain the average illuminance value between the current regulation time node and the next regulation time node based on historical data , and the environmental illuminance value at the current regulation time node ;

[0029] When a brightness increase instruction is generated, the power of the lighting fixture is increased at this time, specifically increasing powers, where ;

[0030] When a brightness decrease instruction is generated, the power of the lighting fixture is decreased at this time, specifically decreasing powers, where = ;

[0031] Among them, is the maximum allowable adjustment power set by the system, is the power conversion coefficient, is the optimal illuminance value between the current regulation time node and the previous regulation time node, is the optimal illuminance value between the current regulation time node and the next regulation time node, is the optimal environmental illuminance value at the current regulation time node, and is the weight coefficient.

[0032] Advantages of the present invention:

[0033] The present invention divides the lighting fixture group into multiple control sections according to the electricity consumption habits, and analyzes whether the photovoltaic power and battery power in each control section meet the current electricity consumption of the lighting fixture, and performs corresponding power control management. In this way, the power can be dynamically regulated according to the electricity consumption and power generation conditions in each time period, ensuring that the electricity demand is met while storing electrical energy to save resources.

[0034] The present invention divides the control section into multiple regulation time nodes, and dynamically adjusts the brightness of the lighting fixture according to the illuminance conditions between each regulation time node, ensuring qualified lighting while avoiding waste of resources. When adjusting the lighting brightness, it can not only be regulated according to the illuminance conditions between each node, but also comprehensively analyze the environmental illuminance of each node, the illuminance conditions between the current node and the previous node, and the illuminance conditions between the current node and the next node, so as to more accurately regulate the brightness of the lighting fixture.

[0035] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. Brief Description of the Drawings

[0036] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0037] Figure 1 It is a flowchart of the method of the present invention. Specific embodiments

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0039] In one embodiment, a control method for an energy-saving lighting fixture with solar photovoltaic and mains complementary power supply is disclosed. As Figure 1 shown, the control method mainly includes:

[0040] Step 1: Divide the lighting fixtures into multiple control sections according to the electricity consumption habits of the lighting fixture group, and set the power supply priority. Solar photovoltaic power supply takes precedence over battery power supply, and battery power supply takes precedence over mains power supply;

[0041] Step 2: Obtain the photovoltaic power, battery storage capacity, and lighting fixture power consumption of each control section, and determine whether power control management is required;

[0042] Step 3: Perform corresponding management on the power according to the judgment result, including charging and discharging of the battery and connecting to the mains power supply;

[0043] Step 4: Perform comprehensive analysis based on the illuminance parameter information and historical data information of the control section, and perform corresponding energy-saving regulation strategies on the lighting fixture group.

[0044] Through the above solution, the present application first divides the lighting fixtures into multiple control sections based on time according to the electricity consumption habits of the lighting fixture group, and analyzes whether the photovoltaic power and battery power in each control section meet the current electricity consumption of the lighting fixtures, and performs corresponding power control management. In this way, the power can be dynamically regulated according to the electricity consumption and power generation conditions in each time period, ensuring that the electricity demand is met while storing electrical energy to save resources. In addition, multiple time control nodes are set for each control section, and the brightness of the lighting fixtures is analyzed based on the illuminance information and corresponding historical data between each node. When the demand is not met, adjustments are made in a timely manner, which can ensure the lighting demand while avoiding excessive power consumption.

[0045] The method for obtaining the photovoltaic power and the electricity consumption of the lighting fixtures in step two is as follows: Obtain the light intensity , temperature , sunshine duration and atmospheric transmittance of the current control section from the meteorological bureau, and then predict the photovoltaic power through the formula, where is the effective area of the photovoltaic panel, is the photovoltaic conversion efficiency, and is the temperature attenuation coefficient; is the temperature power coefficient, which is determined according to the material of the photovoltaic panel module. For example, when it is a silicon module

[0046] -0.0035, and is the working temperature of the photovoltaic panel; Obtain the electricity consumption of the lighting fixtures in the same control section every day in the previous

[0047] days from the historical data, and then obtain the first average electricity consumption . Obtain the electricity consumption of the lighting fixtures in the same control section on the same day of the same week in the previous month from the historical data, and then obtain the second average electricity consumption . Obtain the electricity consumption of the lighting fixtures in the same control section on the same day of the same week in the same month in the previous n years from the historical data, and then obtain the third average electricity consumption . Then, calculate the electricity consumption of the lighting fixtures through the formula, where is the environmental compensation coefficient. The method for obtaining the environmental compensation coefficient is as follows: According to the area where the lighting fixtures are located and the environmental conditions, obtain the weather information at the same time period on the same day;

[0048] ​In case of heavy rain, heavy snow or thick fog, then make ; In case of moderate rain, moderate snow or heavy fog, then make ; In case of light rain, light snow or light fog, then make ; In case of cloudy weather, then make ; In case of clear weather, then make .

[0049] The above solution provides a method for determining photovoltaic power and the power consumption of lighting fixtures. First, obtain the light intensity , temperature , sunshine duration and atmospheric transmittance of the current control section from the meteorological bureau, so as to predict the photovoltaic power through the formula, wherein, is the effective area of the photovoltaic panel, is the photovoltaic conversion efficiency, is the temperature attenuation coefficient, and , is the temperature power coefficient, is the working temperature of the photovoltaic panel; Since the photovoltaic production capacity varies in different time periods, multiple control sections are set, and predicting the corresponding photovoltaic power according to the environmental information of each control section can be more accurate. Generally speaking, the most intuitive manifestations of the amount of photovoltaic power are light intensity, photovoltaic conversion efficiency and the effective area of the photovoltaic panel. In addition, the working temperature of the photovoltaic panel, environmental temperature and atmospheric transmission conditions will also affect the photovoltaic power generation. Therefore, obtain the light intensity , temperature , sunshine duration and atmospheric transmittance of the current control section and detect the working temperature of the photovoltaic panel, so as to predict the photovoltaic power through the formula, . When necessary, the dust coefficient can be determined according to the dust condition of the photovoltaic panel to correct the photovoltaic power; In this way, multiple parameters affecting photovoltaic production can be comprehensively analyzed to accurately predict the photovoltaic power of the current control section, providing a more reasonable support basis for subsequent regulation. Similarly, obtain the power consumption of the lighting fixtures in the same control section every day in the previous days from historical data, so as to obtain the first average power consumption . Obtain the power consumption of the lighting fixtures in the same control section on the same day of the same week in the previous month from historical data, so as to obtain the second average power consumption . Obtain the power consumption of the lighting fixtures in the same control section on the same day of the same week in the same month in the previous n years from historical data, so as to obtain the third average power consumption , and then through the formula calculate the power consumption of the lighting fixture , by obtaining from historical data the power consumption of the lighting fixtures in the same control section every day within the previous days, so as to obtain the first average power consumption , for example, within the previous five days, the power consumption of the lighting fixtures at the same time period every day, to calculate the first average power consumption , which can represent the power consumption situation at the same time period in the recent period and can provide a support basis for the power consumption of the lighting fixtures in the current control section; then obtain from historical data the power consumption of the lighting fixtures in the same control section on the same day of the week in the previous month, so as to obtain the second average power consumption , for example, if the detection date is Wednesday, April 25th, then obtain the power consumption of the lighting fixtures at the same time period on each Wednesday during the period from March 25th to April 25th to obtain the second average power consumption ; finally, also obtain from historical data the power consumption of the lighting fixtures in the same control section on the same day of the week in the same month in the previous n years, so as to obtain the third average power consumption , for example, if the current detection date is in April, then obtain the power consumption of the lighting fixtures in the corresponding time period on the same week in April in the previous five years to obtain the third average power consumption ; through weighted analysis of historical data from near to far, the power consumption of the lighting level in the current time period can be predicted more accurately, thus making the prediction result more accurate; of course, the detection result will also be affected by the weather. For example, on rainy and cloudy days, the lighting intensity is high, so the power consumption is large, and on sunny days, the lighting demand is small, and the corresponding power consumption is also small. Therefore, according to the area where the lighting fixture is located and the environmental conditions, obtain the weather information at the same time period on the same day to determine the environmental compensation coefficient. Specifically, when it is heavy rain, heavy snow or thick fog weather, then let ; when it is moderate rain, moderate snow or heavy fog weather, then let ; when it is light rain, light snow or light fog weather, then let ; when it is cloudy weather, then let ; when it is sunny weather, then let , and finally through the formula carry out comprehensive analysis to calculate the power consumption of the lighting fixture ; through this method, the power consumption of the lighting fixtures in the current control section can be accurately predicted through comprehensive analysis of the weather conditions on the same day and the historical power consumption in the corresponding detection time period, providing a more reasonable support basis for subsequent regulation.

[0050] Step 2. The method for judging whether power control management is required is as follows: When If not, power control and management are required. The management method is as follows: When If so, control the battery pack to charge. At this time, amounts of electricity are charged into the battery pack;

[0051] When If so, obtain the stored electricity of the battery If If so, control the battery pack to discharge. At this time, the battery pack discharges amounts of electricity for the lighting fixture to use;

[0052] When If so, while controlling the battery to discharge, connect the mains power to supply the lighting fixture.

[0053] The above solution provides a specific method for power control and management. After calculating the photovoltaic power and the power consumption of the lighting fixture, then obtain the stored electricity of the battery pack. When If so, it means that the photovoltaic power just meets the use of the lighting fixture in the current control section, and power control and management are not required. At this time, keep the solar photovoltaic panel supplying power to the lighting fixture. At the same time, in order to ensure sufficient power for the lighting fixture, a 10%-20% error is also set to ensure that the lighting fixture's power consumption is met; while when If so, it means that the photovoltaic power output is excessive. In order to avoid waste, control the battery pack to charge and store the excess power. At this time, amounts of electricity are charged into the battery pack; while when If so, obtain the stored electricity of the battery If If so, it means that the photovoltaic power is not enough to supply power completely at this time, but the stored electricity of the battery can meet the power consumption of the lighting fixture. Then control the battery pack to discharge. At this time, the battery pack discharges amounts of electricity for the lighting fixture to use; when If so, it means that neither the photovoltaic power nor the stored electricity of the battery can meet the power consumption demand. Then while controlling the battery to discharge, connect the mains power to supply the lighting fixture. Through this method, it is possible to analyze the power generation, power storage, and power demand situations of each control drive, so as to accurately and precisely allocate the power. While ensuring that the lighting fixture can use electricity normally, it can reasonably save electrical energy resources.

[0054] The method for performing corresponding energy-saving control strategies on the lighting fixture group in step four is as follows: The energy-saving control strategies include a brightness increase command, a brightness decrease command, and a hold command. When the increase command is generated, the brightness of the lighting fixture is increased at this time. When the brightness decrease command is generated, the brightness of the lighting fixture is decreased at this time. When the hold command is generated, the brightness of the current lighting fixture is maintained;

[0055] Specifically, multiple control time nodes are set within the control section, and the illuminance values at each control time node are obtained , when , a hold command is generated. When , a brightness increase command is generated. When , a brightness decrease command is generated, where and are the standard illuminance thresholds for this control time node.

[0056] The method for performing corresponding energy-saving control strategies on the lighting fixture group in step four also includes: obtaining the average illuminance value between the current control time node and the previous control time node , obtaining the average illuminance value between the current control time node and the next control time node according to historical data , and the ambient illuminance value of the control time node ;

[0057] When the brightness increase command is generated, the power of the lighting fixture is increased at this time. Specifically, powers are increased, where ;

[0058] When the brightness decrease command is generated, the power of the lighting fixture is decreased at this time. Specifically, powers are decreased, where = ;

[0059] Among them, is the maximum allowable adjustment power set by the system, is the power conversion coefficient, determined according to the control experiment data, is the optimal illuminance value between the current control time node and the previous control time node, is the optimal illuminance value between the current control time point and the next control time node, is the optimal ambient illuminance value of the current control time node, all of which can be determined according to historical data, and are the weight coefficients determined according to the actual situation. For example, under normal circumstances, can be set. Under low ambient illuminance, can be set again, .

[0060] The above solution provides a specific method for energy-saving control of lighting fixtures. First, the energy-saving control strategy is divided into three instructions: brightness increase instruction, brightness decrease instruction, and hold instruction. When the increase instruction is generated, it indicates that the brightness of the lighting fixture is insufficient at this time and needs to be increased. At this time, the brightness of the lighting fixture is increased. When the brightness decrease instruction is generated, it indicates that the brightness of the lighting fixture is too high at this time and needs to be decreased. At this time, the brightness of the lighting fixture is decreased. When the hold instruction is generated, the brightness of the current lighting fixture is maintained; specifically, multiple control time nodes are set within the control section, and the illuminance values at each control time node are obtained through an illuminometer. When occurs, the hold instruction is generated. When occurs, the brightness increase instruction is generated. When occurs, the brightness decrease instruction is generated, where and are the standard illuminance thresholds for this control time node. At the same time, the average illuminance value between the current control time node and the previous control time node is obtained. According to historical data, the average illuminance value between the current control time point and the next control time node is obtained. and the ambient illuminance value at the current control time point. ; When the brightness increase instruction is generated, in order to ensure the lighting demand, the power of the lighting fixture is increased at this time to improve the illuminance. Specifically, powers are increased, where It can be seen from the formula that when the illuminance value is smaller than the threshold more, it means that the power to be increased is greater, and represents the situation between the illuminance value of the previous control time node and the previous control time node and the standard value, represents the situation between the illuminance value of the current control time point and the next control time node and the standard value, represents the situation between the ambient illuminance value at the current control time point and the optimal ambient illuminance value. Obviously, the smaller the value, the more brightness needs to be increased, and the greater the corresponding adjusted power. However, the power adjustment cannot be increased or decreased infinitely. Therefore, according to the performance of the lighting fixture itself, a maximum allowable adjustment power is set to ensure the stable operation of the lighting fixture. Similarly, when the brightness decrease instruction is generated, the power of the lighting fixture is decreased at this time. Specifically, powers are decreased, where = In this way, the control section is divided into multiple regulation time nodes, and the brightness of the lighting fixtures is dynamically adjusted according to the illuminance between each regulation time node, which can avoid waste of resources while ensuring qualified lighting. When adjusting the lighting brightness, not only can it be regulated according to the illuminance values between each node, but also the ambient illuminance of each node, the illuminance between the current node and the previous node, and the illuminance between the current node and the next node can be comprehensively analyzed, so as to more accurately regulate the brightness of the lighting fixtures.

[0061] It should be noted that when calculating each parameter in the above calculation formula, dimensionless processing is carried out after selecting the unit, and it is in dimensionless calculation. The dimensionless processing can be implemented through existing technologies such as normalization processing, and will not be elaborated here.

[0062] The above content is only an example and explanation of the concept of the present invention. Those skilled in the art of the present technology can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the concept of the invention or exceed the scope defined by the claims of the present invention, they should fall within the protection scope of the present invention.

Claims

1. Control method of energy-saving lighting fixture with solar photovoltaic and mains complementary power supply, characterized in that, The control method includes: Step 1: Divide the lighting fixtures into multiple control sections according to the electricity consumption habits of the lighting fixture group, and set the power supply priority. Solar photovoltaic power supply takes precedence over battery power supply, and battery power supply takes precedence over mains power supply. Step 2: Obtain the photovoltaic power, battery storage capacity, and lighting fixture power consumption of each control section, and determine whether power control management is required. Step 3: Perform corresponding management on the power according to the judgment result, including charging and discharging of the battery and connecting to the mains power supply. Step 4: Conduct comprehensive analysis based on the illuminance parameter information and historical data information of the control section, and implement corresponding energy-saving control strategies for the lighting fixture group.

2. The control method of the energy-saving lighting fixture with solar photovoltaic and mains complementary power supply according to claim 1, characterized in that The method for obtaining the photovoltaic power and lighting fixture power consumption in Step 2 is: Obtain the light intensity, , temperature , sunshine duration and atmospheric transmittance of the current control section from the meteorological bureau, so as to predict the photovoltaic power through the formula , where is the effective area of the photovoltaic panel, is the photovoltaic conversion efficiency, is the temperature attenuation coefficient; , is the temperature power coefficient, is the operating temperature of the photovoltaic panel; Obtain the electricity consumption of the lighting fixtures in the same control section every day within the previous days from historical data, so as to obtain the first average electricity consumption , obtain the electricity consumption of the lighting fixtures in the same control section on the same number of days of the same week in the previous month from historical data, so as to obtain the second average electricity consumption , obtain the electricity consumption of the lighting fixtures in the same control section on the same number of days of the same week in the same month in the previous n years from historical data, so as to obtain the third average electricity consumption , and then through the formula calculate the electricity consumption of the lighting fixtures , is the environmental compensation coefficient.

3. The control method of the energy-saving lighting fixture with solar photovoltaic and mains complementary power supply according to claim 2, characterized in that, The environmental compensation coefficient The acquisition method is as follows: Obtain the weather information at the same time period of the current day according to the area where the lighting fixture is located and the environmental conditions. In case of heavy rain, heavy snow or thick fog, then make ; in case of moderate rain, moderate snow or heavy fog, then make ; When it is light rain, light snow or light fog weather, then make ; When it is cloudy, then make ; When the weather is sunny, then make .

4. The control method of the energy-saving lighting fixture with solar photovoltaic and mains complementary power supply according to claim 2, characterized in that, The method for determining whether power control management is required in Step 2 is: When there is no need to control and manage the power. In this case, the solar photovoltaic panel continues to supply power to the lighting fixture. Otherwise, it is necessary to control and manage the power.

5. The control method of the energy-saving lighting fixture with solar photovoltaic and mains complementary power supply according to claim 4, characterized in that, The method for performing control management in Step 3 is: When occurs, the battery pack is controlled to be charged, and at this time amounts of electricity are charged into the battery pack; When the stored power of the battery is obtained If then control the battery pack to discharge. At this time, the battery pack discharges electricity for the lighting fixture to use; When it is the case, the battery is controlled to discharge while mains power is connected for use by the lighting fixture.

6. The control method of the energy-saving lighting fixture with solar photovoltaic and mains complementary power supply according to claim 1, characterized in that The method for implementing corresponding energy-saving control strategies for the lighting fixture group in Step 4 is: The energy-saving control strategies include a brightness increase command, a brightness decrease command, and a hold command. When the increase command is generated, the brightness of the lighting fixture is increased at this time. When the brightness decrease command is generated, the brightness of the lighting fixture is decreased at this time. When the hold command is generated, the brightness of the current lighting fixture is maintained. Specifically, a plurality of regulation time nodes are set within the control section, and the illuminance values at each regulation time node are obtained. When , a hold command is generated. When , a brightness increase command is generated. When , a brightness decrease command is generated, where and are the standard illuminance thresholds for this control time node.

7. The control method of the energy-saving lighting fixture with solar photovoltaic and mains complementary power supply according to claim 6, characterized in that The method for implementing corresponding energy-saving control strategies for the lighting fixture group in Step 4 also includes: Obtain the average illuminance value between the current regulation time node and the previous regulation time node , and obtain the average illuminance value between the current regulation time node and the next regulation time node according to historical data , as well as the ambient illuminance value of the current regulation time node ; When a brightness enhancement instruction is generated, the power of the lighting fixture is increased at this time, specifically by increasing power units, where ; When a brightness reduction instruction is generated, the power of the lighting fixture is reduced at this time, specifically reducing power units, where = ; Among them, is the maximum allowable adjustment power set by the system, is the power conversion coefficient, is the optimal illuminance value between the current regulation time node and the previous regulation time node, is the optimal illuminance value between the current regulation time node and the next regulation time node, is the optimal ambient illuminance value at the current regulation time node, and is the weight coefficient.

Images