Control method for energy-saving lighting fixtures powered by complementary solar photovoltaic and mains electricity

Abstract

The present invention discloses a control method for energy-saving lighting fixtures that are complementary powered by solar photovoltaic and mains electricity, belonging to the field of lighting fixture control technology, comprising: step one, dividing the lighting fixture into multiple control sections and setting power supply priorities; step two, obtaining the photovoltaic power, battery storage power, and lighting fixture power consumption of each control section, and judging whether power control and management is required; step three, managing the power accordingly based on the judgment result; and step four, implementing an energy-saving control strategy for the lighting fixture group based on the illumination parameter information and historical data information of the control section. The present invention analyzes whether the photovoltaic power and battery power conditions in each control section meet the current lighting fixture power consumption, and performs corresponding power control and management. In this way, the power consumption can be dynamically controlled according to the power consumption and power generation conditions in each time period, ensuring that power demand is met while electrical energy is stored.

Description

Technical Field

[0001] The present invention belongs to the technical field of lamp control, and in particular relates to a control method for an energy-saving lighting lamp that is complementary powered by solar photovoltaic and mains electricity. Background Art

[0002] With growing global demand for sustainable energy and heightened awareness of environmental protection, solar energy, as a clean, renewable energy source, has garnered widespread attention. In particular, in urban lighting systems, the use of solar photovoltaic technology in conjunction with utility power to power lighting fixtures and other facilities not only contributes to energy conservation and emission reduction, but also improves energy efficiency.

[0003] In current systems that convert photovoltaic power into utility power, the system typically uses the day's weather to predict whether the photovoltaic power generation capacity is sufficient to power lighting fixtures, thereby determining whether utility power is needed. However, because photovoltaic power generation capacity and lighting fixture power consumption vary across time periods, using only the overall weather conditions can lead to inaccurate predictions, which can affect power consumption during specific periods. Furthermore, when adjusting lighting fixture brightness, the system typically sets a fixed brightness based on historical lighting conditions during a specific time period. However, ambient light levels vary across time periods, also influenced by weather. Using a fixed adjustment method can result in inaccurate results, leading to insufficient lighting or excessive power consumption. Summary of the Invention

[0004] The object of the present invention is to provide a control method for an energy-saving lighting fixture that is complementary powered by solar photovoltaic and mains electricity, so as to solve the problems encountered in the above-mentioned background technology.

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

[0006] A control method for an energy-saving lighting fixture that is complementary powered by solar photovoltaic and mains electricity, the control method comprising:

[0007] Step 1: Divide the lighting fixtures into multiple control sections based on the lighting fixture group's electricity usage habits, 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.

[0008] Step 2: Obtain the photovoltaic power, battery storage power and lighting power consumption of each control section to determine whether power control and management is required;

[0009] Step 3: Manage the power accordingly based on the judgment result, including charging and discharging of the battery and connecting to the mains power supply;

[0010] Step 4: Conduct a comprehensive analysis based on the illumination parameter information and historical data information of the control section, and implement a corresponding energy-saving control strategy for the lighting fixture group.

[0011] Furthermore, the method for obtaining the photovoltaic power and lighting power consumption in step 2 is:

[0012] Get the light intensity of the current control section from the weather bureau ,temperature , sunshine duration and atmospheric transmittance , so through the formula Predicting photovoltaic power ,in, 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 operating temperature of the photovoltaic panel;

[0014] Get the previous data from historical data The power consumption of lighting fixtures in the same control section every day of the day is used to obtain the first average power consumption , obtain the power consumption of lighting fixtures in the same control section on the same Sunday number in the previous month from historical data, and thus obtain the second average power consumption , obtain the power consumption of lighting fixtures in the same control section under the same Sunday number in the same month in the previous n years from historical data, and thus obtain the third average power consumption , and then through the formula Calculate the electricity consumption of lighting fixtures , is the environmental compensation coefficient.

[0015] Furthermore, the environmental compensation coefficient The acquisition method is:

[0016] Obtain weather information for the same time period of the day based on the area where the lighting fixtures are located and the environmental conditions;

[0017] When it is rainy, snowy or foggy, When it is moderate rain, moderate snow or heavy fog, ; When it is light rain, light snow or light fog, ; When it is cloudy, When it is sunny, .

[0018] Furthermore, the method for determining whether power control and management is required in step 2 is:

[0019] when When the power is on, there is no need to control and manage the power consumption. At this time, the solar photovoltaic panels are kept supplying power to the lighting fixtures. Otherwise, the power consumption needs to be controlled and managed.

[0020] Furthermore, the control management method in step three is:

[0021] when When the battery pack is controlled to charge, The electricity is charged into the battery pack;

[0022] when When the battery storage capacity is obtained ,like , then the battery pack is controlled to discharge, and the battery pack releases a The electricity is used for lighting fixtures;

[0023] when When the battery is controlled to discharge, it is connected to the mains power supply for lighting fixtures.

[0024] Furthermore, the method for implementing the corresponding energy-saving control strategy for the lighting fixture group in step 4 is:

[0025] The energy-saving control strategy includes brightness increase instruction, brightness reduction instruction and maintenance instruction. When the increase instruction is generated, the brightness of the lighting fixture is increased. When the brightness reduction instruction is generated, the brightness of the lighting fixture is reduced. When the maintenance instruction is generated, the current brightness of the lighting fixture is maintained.

[0026] Specifically, multiple control time nodes are set in the control section, and the illumination value at each control time node is obtained. ,when When , a hold instruction is generated. When , a brightness increase instruction is generated. , a brightness reduction instruction is generated, where as well as is the standard illumination threshold of the control time node.

[0027] Furthermore, the method of implementing a corresponding energy-saving control strategy for the lighting fixture group in step 4 further includes:

[0028] Get the average illumination value of the current control time node and the previous control time node , obtain the average illumination value of the current control time node and the next control time node based on historical data , and the ambient illumination value of the current control time node ;

[0029] When a brightness increase instruction is generated, the power of the lighting fixture is increased. Specifically, power, of which ;

[0030] When a brightness reduction instruction is generated, the power of the lighting fixture is reduced. Specifically, power, of which = ;

[0031] in, The maximum adjustable power allowed by the system. is the power conversion coefficient, is the optimal illumination value between the current control time node and the previous control time node, is the optimal illumination value between the current control time node and the next control time node, is the optimal ambient illumination value at the current control time node, as well as is the weight coefficient.

[0032] Beneficial effects of the present invention:

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

[0034] The present invention divides the control section into multiple control time nodes, and dynamically adjusts the brightness of the lighting fixture according to the illumination conditions between each control time node, ensuring qualified lighting while avoiding waste of resources. When adjusting the lighting brightness, it can not only be controlled according to the illumination conditions between each node, but also a comprehensive analysis can be performed based on the ambient illumination of each node, the illumination conditions between the current node and the previous node, and the illumination conditions between the current node and the next node, so as to more accurately control the brightness of the lighting fixture.

[0035] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 Flow chart of the method of the present invention. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0039] In one embodiment, a control method for an energy-saving lighting fixture that is complementary powered by solar photovoltaic and mains electricity is disclosed, such as Figure 1 As shown, the control method mainly includes:

[0040] Step 1: Divide the lighting fixtures into multiple control sections based on the lighting fixture group's electricity usage habits, 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 power and lighting power consumption of each control section to determine whether power control and management is required;

[0042] Step 3: Manage the power accordingly based on the judgment result, including charging and discharging of the battery and connecting to the mains power supply;

[0043] Step 4: Conduct a comprehensive analysis based on the illumination parameter information and historical data information of the control section, and implement a corresponding energy-saving control strategy for the lighting fixture group.

[0044] Through the above scheme, this application first divides the lighting fixtures into multiple control sections based on the electricity usage habits of the lighting fixture group and time. By analyzing whether the photovoltaic power and battery power in each control section meet the current power consumption of the lighting fixtures, and performing corresponding power control management, the power can be dynamically adjusted according to the power consumption and power production conditions in each time period to ensure that the power demand is met while storing electricity to save resources; in addition, multiple time control time nodes are set for each control section, and the illumination information between each node and the corresponding historical data are used to analyze whether the brightness of the lighting fixture meets the lighting demand. If it does not meet the demand, timely adjustments are made, which can ensure lighting needs while avoiding excessive power consumption.

[0045] The method for obtaining photovoltaic power and lighting power consumption in step 2 is: obtain the light intensity of the current control section from the meteorological bureau ,temperature , sunshine duration and atmospheric transmittance , so through the formula Predicting photovoltaic power ,in, is the effective area of ​​the photovoltaic panel, is the photovoltaic conversion efficiency, is the temperature attenuation coefficient;

[0046] , is the temperature power coefficient, which is determined by the material of the photovoltaic panel components. For example, when it is a silicon component -0.0035, is the operating temperature of the photovoltaic panel;

[0047] Get the previous data from historical data The power consumption of lighting fixtures in the same control section every day of the day is used to obtain the first average power consumption , obtain the power consumption of lighting fixtures in the same control section on the same Sunday number in the previous month from historical data, and thus obtain the second average power consumption , obtain the power consumption of lighting fixtures in the same control section under the same Sunday number in the same month in the previous n years from historical data, and thus obtain the third average power consumption , and then through the formula Calculate the electricity consumption of lighting fixtures , is the environmental compensation coefficient, environmental compensation coefficient The acquisition method is: according to the area where the lighting fixture is located and the environmental conditions, obtain the weather information of the same time period on the same day;

[0048] When it is rainy, snowy or foggy, When it is moderate rain, moderate snow or heavy fog, ; When it is light rain, light snow or light fog, ; When it is cloudy, When it is sunny, .

[0049] The above scheme provides a method for determining the photovoltaic power and lighting power consumption. First, the light intensity of the current control section is obtained from the meteorological bureau. ,temperature , sunshine duration and atmospheric transmittance , so through the formula Predicting photovoltaic power ,in, is the effective area of ​​the photovoltaic panel, is the photovoltaic conversion efficiency, is the temperature attenuation coefficient, and , is the temperature power coefficient, The working temperature of the photovoltaic panel; Since the photovoltaic production capacity is inconsistent in different time periods, multiple control sections are set. The corresponding photovoltaic power can be predicted more accurately based on the environmental information of each control section. Generally speaking, the amount of photovoltaic power is most intuitively reflected by the light intensity, photovoltaic conversion efficiency and the effective area of ​​the photovoltaic panel. In addition, the working temperature of the photovoltaic panel, the ambient temperature and the atmospheric projection will also affect the photovoltaic power production. Therefore, the light intensity of the current control section is obtained. ,temperature , sunshine duration and atmospheric transmittance And detect the working temperature of photovoltaic panels , so through the formula Predicting photovoltaic power If necessary, the dust coefficient can be formulated according to the dust situation of the photovoltaic panels to correct the photovoltaic power; this can be combined with multiple parameters that affect photovoltaic production capacity for comprehensive analysis to accurately predict the photovoltaic power of the current control section, providing a more reasonable support basis for subsequent regulation. The power consumption of lighting fixtures in the same control section every day of the day is used to obtain the first average power consumption , obtain the power consumption of lighting fixtures in the same control section on the same Sunday number in the previous month from historical data, and thus obtain the second average power consumption , obtain the power consumption of lighting fixtures in the same control section under the same Sunday number in the same month in the previous n years from historical data, and thus obtain the third average power consumption , and then through the formula Calculate the electricity consumption of lighting fixtures , by obtaining the previous The power consumption of lighting fixtures in the same control section every day of the day is used to obtain the first average power consumption For example, the first average power consumption is calculated by calculating the power consumption of lighting fixtures at the same time period every day in the first five days. , which can be characterized as the electricity consumption in the same time period in the recent period, and can provide a supporting basis for the electricity consumption of lighting fixtures in the current control section; then the electricity consumption of lighting fixtures in the same control section on the same Sundays in the previous month is obtained from historical data to obtain the second average electricity consumption For example, if the test date is Wednesday, April 25, the power consumption of lighting fixtures in the same time period every Wednesday between March 25 and April 25 is obtained to obtain the second average power consumption. Finally, the power consumption of lighting fixtures in the same control section under the same month and the same Sunday number in the previous n years is obtained from the historical data to obtain the third average power consumption For example, if the current test date is in April, the power consumption of the lamps in the corresponding time period of the same week in April in the previous five years is obtained to obtain the third average power consumption By weighted analysis of historical data from recent to distant, the power consumption of lighting levels in the current time period can be predicted more accurately, making the prediction results more accurate. Of course, the detection results will also be affected by the weather. For example, on rainy days, the lighting intensity is high, which results in higher power consumption. On sunny days, the lighting demand is low, and the corresponding power consumption is also lower. Therefore, according to the area where the lighting fixtures are located and the environmental conditions, the weather information of the same time period of the day is obtained to determine the environmental compensation coefficient. Specifically, when it is heavy rain, heavy snow or dense fog, the compensation coefficient is set to When it is moderate rain, moderate snow or heavy fog, ; When it is light rain, light snow or light fog, ; When it is cloudy, When it is sunny, , and finally through the formula Conduct comprehensive analysis to calculate the power consumption of lighting fixtures In this way, a comprehensive analysis can be conducted based on the weather conditions of the day and the historical electricity consumption during the corresponding detection time period to accurately predict the electricity consumption of lighting fixtures in the current control section, providing a more reasonable support basis for subsequent regulation.

[0050] Step 2: Determine whether the power needs to be controlled and managed. When the power is on, there is no need to control and manage the power. At this time, the solar photovoltaic panels are kept supplying power to the lighting fixtures. Otherwise, the power needs to be controlled and managed. The management method is: when When the battery pack is controlled to charge, The electricity is charged into the battery pack;

[0051] when When the battery storage capacity is obtained ,like , then the battery pack is controlled to discharge, and the battery pack releases a The electricity is used for lighting fixtures;

[0052] when When the battery is controlled to discharge, it is connected to the mains power supply for lighting fixtures.

[0053] The above scheme provides a specific method for controlling and managing power. After calculating the photovoltaic power and the power consumption of lighting fixtures, the storage capacity of the battery pack is obtained. When , it means that the photovoltaic power is just enough to meet the lighting needs of the current control section, and there is no need to control the power. At this time, the solar photovoltaic panels are kept supplying power to the lighting fixtures. At the same time, in order to ensure that the lighting fixtures have enough power, a 10%-20% error is set to ensure that the lighting fixtures have enough power. When When the photovoltaic power output is excessive, in order to avoid waste, the battery pack is controlled to charge and the excess power is stored. The electricity is charged into the battery pack; When the battery storage capacity is obtained ,like , indicating that the photovoltaic power is not enough to fully supply power, but the battery storage power can meet the lighting power needs, then the battery pack is controlled to discharge, and the battery pack releases a The electricity is used for lighting fixtures; when When the power consumption is too low, it means that neither the photovoltaic power nor the battery storage capacity can meet the power demand. In this way, the battery is controlled to discharge and the mains power is connected to the lighting fixtures. This method can accurately allocate power based on the power generation, storage and power demand of each control drive, ensuring the normal power consumption of the lighting fixtures while conserving energy resources.

[0054] In step 4, the method for implementing the corresponding energy-saving control strategy for the lighting fixture group is as follows: the energy-saving control strategy includes a brightness increase instruction, a brightness decrease instruction, and a maintain instruction. When the increase instruction is generated, the brightness of the lighting fixture is increased; when the brightness decrease instruction is generated, the brightness of the lighting fixture is reduced; when the maintain instruction is generated, the brightness of the current lighting fixture is maintained;

[0055] Specifically, multiple control time nodes are set in the control section, and the illumination value at each control time node is obtained. ,when When , a hold instruction is generated. When , a brightness increase instruction is generated. , a brightness reduction instruction is generated, where as well as is the standard illumination threshold of the control time node.

[0056] The method for implementing the corresponding energy-saving control strategy for the lighting fixture group in step 4 further includes: obtaining the average illuminance value of the current control time node and the previous control time node , obtain the average illumination value of the current control time node and the next control time node based on historical data , and control the ambient illumination value of the time node ;

[0057] When a brightness increase instruction is generated, the power of the lighting fixture is increased. Specifically, power, of which ;

[0058] When a brightness reduction instruction is generated, the power of the lighting fixture is reduced. Specifically, power, of which = ;

[0059] in, The maximum adjustable power allowed by the system. is the power conversion coefficient, determined based on the control experimental data, is the optimal illumination value between the current control time node and the previous control time node, The optimal illumination value between the current control time point and the next control time node, The optimal ambient illumination value for the current control time node can be determined based on historical data. as well as The weight coefficient is determined according to the actual situation. For example, under normal circumstances, , in low ambient illumination, , .

[0060] The above scheme 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 reduction instruction and maintenance instruction. When the increase instruction is generated, it means that the brightness of the lighting fixture is insufficient and needs to be increased. At this time, the brightness of the lighting fixture is increased. When the brightness reduction instruction is generated, it means that the brightness of the lighting fixture is too high and needs to be reduced. At this time, the brightness of the lighting fixture is reduced. When the maintenance instruction is generated, the brightness of the current lighting fixture is maintained. Specifically, multiple control time nodes are set in the control section, and the illuminance value at each control time node is obtained through the illuminance meter. ,when When , a hold instruction is generated. When , a brightness increase instruction is generated. , a brightness reduction instruction is generated, where as well as The standard illumination threshold of the control time node is obtained, and the average illumination value of the current control time node and the previous control time node is obtained at the same time. , obtain the average illumination value of the current control time point and the next control time node based on historical data , and the ambient illumination value at the current control time point When a brightness increase instruction is generated, in order to ensure lighting needs, the power of the lighting fixtures is increased to improve the lighting. power, of which From the formula, we can see that when the illumination value is smaller than the threshold When the power required is greater, Indicates the difference between the illumination value and the standard value at the previous control time node and the previous control time node. Indicates the situation between the illumination value and the standard value at the current control time point and the next control time node. Indicates 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 corresponding power adjustment is greater. However, the power adjustment cannot be increased or decreased indefinitely. Therefore, according to the performance of the lamp itself, a maximum adjustable power is set. To ensure the stable operation of the lamp, when the brightness reduction instruction is generated, the power of the lighting fixture is reduced. power, of which = In this way, the control section is divided into multiple control time nodes, and the brightness of the lighting fixtures is dynamically adjusted according to the illumination conditions between each control time node, ensuring qualified lighting while avoiding waste of resources. When adjusting the lighting brightness, it can not only be regulated according to the illumination values ​​between each node, but also combined with the ambient illumination of each node, the illumination conditions of the current node and the previous node, and the illumination conditions of the current node and the next node for comprehensive analysis, 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 is dimensionlessly processed after selecting the unit, and is in dimensionless calculation. The dimensionless processing can be implemented through existing technologies such as normalization processing, which will not be described in detail here.

[0062] The above content is merely an example and explanation of the concept of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the claims, they should all fall within the scope of protection of the present invention.

Claims

1. A control method for energy-saving lighting fixtures with complementary power supply of solar photovoltaic and mains electricity, characterized in that: The control method includes: Step 1: Divide the lighting fixtures into multiple control sections based on the lighting fixture group's electricity usage habits, 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 power and lighting power consumption of each control section to determine whether power control and management is required; Step 3: Manage the power accordingly based on the judgment result, including charging and discharging of the battery and connecting to the mains power supply; Step 4: Conduct a comprehensive analysis based on the illumination parameter information and historical data of the control section, and implement a corresponding energy-saving control strategy for the lighting fixture group; The method for implementing the corresponding energy-saving control strategy for the lighting fixture group in step 4 is as follows: the energy-saving control strategy includes a brightness increase instruction, a brightness decrease instruction, and a maintain instruction. When the increase instruction is generated, the brightness of the lighting fixture is increased; when the brightness decrease instruction is generated, the brightness of the lighting fixture is reduced; when the maintain instruction is generated, the brightness of the current lighting fixture is maintained; Specifically, multiple control time nodes are set in the control section, and the illuminance value Lux at each control time node is obtained. When Lux∈[Lux1, Lux2], a hold instruction is generated; when Lux<Lux1, a brightness increase instruction is generated; when Lux>Lux2, a brightness decrease instruction is generated, where Lux1 and Lux2 are the standard illuminance thresholds of the control time node; The method for implementing the corresponding energy-saving control strategy for the lighting fixture group in step 4 further includes: obtaining the average illumination value K of the current control time node and the previous control time node Lux , according to historical data, obtain the average illumination value H of the current control time node and the next control time node Lux , and the ambient illumination value Lemp at the current control time node; When a brightness increase instruction is generated, the power of the lighting fixture is increased, specifically by increasing P A power, of which When a brightness reduction instruction is generated, the power of the lighting fixture is reduced, specifically by reducing P B power, of which Among them, P MAX is the maximum adjustable power allowed by the system, α is the power conversion coefficient, is the optimal illumination value between the current control time node and the previous control time node, is the optimal illumination value between the current control time node and the next control time node, Lemp0 is the optimal ambient illumination value at the current control time node, and β1 and β2 are weight coefficients.

2. The control method of energy-saving lighting fixtures with complementary power supply of solar photovoltaic and mains electricity according to claim 1, characterized in that: The method for obtaining the photovoltaic power and lighting power consumption in step 2 is: Obtain the light intensity GL, temperature GT, sunshine duration GC and atmospheric transmittance GQ of the current control section from the meteorological bureau, and then use the formula Q PV =GL*GQ*GC*S*ρ PV *σ T Predict the photovoltaic power Q PV , where S is the effective area of ​​the photovoltaic panel, ρ PV is the photovoltaic conversion efficiency, σ T is the temperature attenuation coefficient; γ is the temperature power coefficient, T PV is the operating temperature of the photovoltaic panel; Get the top n from historical data x The power consumption of lighting fixtures in the same control section on each day of the day is obtained from the historical data, thereby obtaining the first average power consumption QX. The power consumption of lighting fixtures in the same control section on the same Sunday of the previous month is obtained from the historical data, thereby obtaining the second average power consumption QY. The power consumption of lighting fixtures in the same control section on the same Sunday of the previous n years is obtained from the historical data, thereby obtaining the third average power consumption QZ. Then, through the formula Q LED =EP*(0.5*QX+0.3*QY+0.2*QZ) to calculate the power consumption of lighting fixtures Q LED , EP is the environmental compensation coefficient.

3. The control method of energy-saving lighting fixtures with complementary power supply of solar photovoltaic and mains electricity according to claim 2, characterized in that: The method for obtaining the environmental compensation coefficient EP is: Obtain weather information for the same time period of the day based on the area where the lighting fixtures are located and the environmental conditions; When it is heavy rain, heavy snow or dense fog, set EP = 1.3; when it is moderate rain, moderate snow or heavy fog, set EP = 1.2; when it is light rain, light snow or light fog, set EP = 1.1; when it is cloudy, set EP = 1; when it is clear, set EP = 0.

9.

4. The control method of energy-saving lighting fixtures with complementary power supply of solar photovoltaic and mains electricity according to claim 2, characterized in that: The method for determining whether power control and management is required in step 2 is as follows: When Q PV ∈[1.1Q LED , 1.2Q LED ], there is no need to control and manage the power consumption, and the solar photovoltaic panels are kept supplying power to the lighting fixtures. Otherwise, the power consumption needs to be controlled and managed.

5. The control method of energy-saving lighting fixtures with complementary power supply of solar photovoltaic and mains electricity according to claim 4, characterized in that: The control management method in step three is: When Q PV >1.2Q LED When Q PV -1.2Q LED The electricity is charged into the battery pack; When Q PV <1.1Q LED When the battery storage capacity Q is obtained SB , if Q PV +Q SB >1.1Q LED , then the battery pack is controlled to discharge, and the battery pack releases 1.1Q LED -Q PV The electricity is used for lighting fixtures; When Q PV +Q SB ≤1.1Q LED When the battery is controlled to discharge, it is connected to the mains power supply for lighting fixtures.

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