Power supply energy-saving management system of low-power solar lamp

Abstract

The invention relates to the technical field of battery management, in particular to a power supply energy-saving management system for a low-power solar lamp, and the system comprises the steps: obtaining the first illumination intensity of the current environment of the low-power solar lamp; establishing a solar voltage change curve, judging whether the change value of the first illumination intensity is not less than a change threshold value or not, and correspondingly adjusting the low-power solar lamp; a lamp illumination curve is established, and illumination adjustment is performed according to the lamp illumination curve on the basis of a first environment illumination change threshold value of the illumination intensity of the actual environment, a second environment illumination change threshold value of the illumination intensity between the low-power solar lamps and whether a movable illumination target exists or not; according to the method, the power supply of the low-power solar lamp can be intelligently adjusted according to the ambient light, so that the electric quantity of the power supply is intelligently saved, the service life of the power supply of the low-power solar lamp is prolonged, the service time of the power supply is prolonged, and the intelligent level of the power supply of the low-power solar lamp is improved.

Description

Technical Field

[0001] The invention relates to the technical field of battery management, in particular to a power energy-saving management system for a low-power solar lamp. Background Art

[0002] Low-power solar lamps are small lighting equipment that use solar power generation technology. Since low-power solar lamps collect sunlight through solar panels and convert it into electrical energy, there is no need to lay cables or other power grid systems specifically for the lamps, and the installation is relatively convenient. Secondly, since solar energy is used as the main source of electricity, it is more energy-saving and environmentally friendly than traditional lamps, and can reduce electricity costs. In addition, low-power solar lamps are usually powered by low voltage, which greatly reduces safety hazards such as fire.

[0003] Based on the above characteristics, low-power solar lamps are usually suitable for outdoor environments where it is difficult to install power grids and there is sufficient sunlight, such as path lighting in gardens or ambient lighting in courtyards. However, there are still some problems with low-power solar lamps. Due to the low level of intelligence, small-power solar lamps cannot perform intelligent lighting adjustments based on ambient light. Long-term lighting work can easily affect the power life of small-power solar lamps. In addition, the power capacity of small-power solar lamps is also small. If the power stored in the power supply is insufficient and intelligent lighting adjustment cannot be performed, it is easy to cause the small-power solar lamps to be unable to work for a long time under conditions where light is required.

[0004] Therefore, a power energy-saving management system for low-power solar lamps is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a power energy-saving management system for low-power solar lamps, which obtains the first light intensity of the current environment of the low-power solar lamps; establishes a solar voltage change curve, determines whether the change value of the first light intensity is not less than a change threshold, and adjusts the low-power solar lamps accordingly; establishes a lamp illumination curve, and adjusts the illumination according to the lamp illumination curve based on the first ambient illumination change threshold of the illumination intensity of the actual environment, the second ambient illumination change threshold of the illumination intensity between the low-power solar lamps, and whether there is a moving illumination target; through this method, the power supply of the low-power solar lamps can be intelligently adjusted according to the ambient illumination, which helps to save power intelligently, extend the power life of the low-power solar lamps, and increase the power usage time.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A power energy-saving management system for a low-power solar lamp includes an ambient light detection module, a first light intensity detection module, a second light intensity detection module and an ambient light adjustment module, specifically:

[0008] An ambient light detection module is used to obtain ambient light intensity information of a plurality of low-power solar lamps, and obtain a first light intensity according to the ambient light intensity information;

[0009] Further, voltage data converted from solar energy data of a plurality of the low-power solar lamps is obtained, and light intensity data of each of the low-power solar lamps is calculated based on the voltage data;

[0010] Taking the sunlight angle of the current environment time as a weight, weighted calculation is performed on the light intensity data of the plurality of low-power solar lamps to obtain average light information; the average light information is the first light intensity;

[0011] A first light intensity detection module, which obtains a change value of the first light intensity, and when the change value is not less than a change threshold, adjusts the power supply of the plurality of low-power solar lamps;

[0012] Further, the change value includes an illumination change value and an illumination change point; the change threshold includes an illumination change threshold and an illumination change threshold point;

[0013] Further, a standard reference environment of the low-power solar lamp is obtained, voltage data converted from solar data is obtained according to the standard reference environment, a two-dimensional coordinate system is generated according to the voltage data and the acquisition time, and a standard solar voltage change curve is established in combination with a nonlinear regression algorithm; the horizontal axis is the acquisition time, and the vertical axis is the voltage data;

[0014] Furthermore, a plurality of the standard reference environments are set according to the climate data, and a plurality of the standard solar voltage variation curves are established;

[0015] In a non-standard reference environment, the low-power solar lamp obtains real-time voltage data at the current collected real-time time, maps the real-time voltage data to the standard solar voltage change curve, and obtains the standard reference time;

[0016] The difference between the standard reference time and the real time is the illumination change value; the standard reference time is the illumination change point;

[0017] Furthermore, the standard reference time also includes collecting t times of the standard reference time in the kth time period, and calculating t times of the illumination change value;

[0018] Calculate the illumination similarity of t illumination change values, if the illumination similarity is less than a similarity threshold, then count the number N1 of the illumination change values ​​less than the similarity threshold and the number N2 of the illumination change values ​​not less than the similarity threshold; take the illumination data corresponding to the maximum value of N1 and N2 as the standard reference data set of the illumination change value;

[0019] The average of the illumination change values ​​of the standard reference data set is used as the illumination change value;

[0020] If the illumination change value is not less than the illumination change threshold value and / or the illumination change threshold point, detecting and adjusting the power supply of the plurality of low-power solar lamps;

[0021] A second light intensity detection module, after the power supply of the plurality of low-power solar lamps is adjusted and output, calculates and obtains the second light intensity according to the output of the power supply;

[0022] Furthermore, the power output is used to calculate the second light intensity by establishing a two-dimensional coordinate system through the voltage data and the illumination range of the low-power solar lamp, wherein the voltage data is the horizontal axis and the illumination range is the vertical axis; a lamp illumination curve is established according to a nonlinear regression algorithm, and the voltage data of the power supply is mapped to the lamp illumination curve to obtain the second light intensity;

[0023] An ambient light adjustment module, which calculates the light intensity information of the current environment by combining the first light intensity and the second light intensity;

[0024] Furthermore, the low-power solar lamp maps the voltage data obtained by solar energy to a standard solar voltage change curve to obtain a first light intensity; the low-power solar lamp maps the voltage data of the power supply to the lamp illumination curve to obtain a second light intensity;

[0025] If the illumination intensity information of the current environment is greater than a first environment illumination change threshold, reducing the second illumination intensity to the first environment illumination change threshold;

[0026] Further, a minimum physical distance between the low-power solar lamps is obtained, and the minimum physical distance is used as the first ambient light change threshold;

[0027] Obtaining the illumination radius of the second illumination intensity of the low-power solar lamp; calculating the minimum value of the sum of the illumination radiuses between the low-power solar lamps at the minimum physical distance and obtaining corresponding voltage data according to the illumination curve of the lamps; if the minimum value of the sum of the illumination radiuses is greater than the first ambient illumination change threshold, reducing the voltage data according to the illumination curve of the lamps until the minimum value of the sum of the illumination radiuses is equal to the first ambient illumination change threshold;

[0028] Furthermore, the sum of the illumination radii of the low-power solar lamps has an overlapping area, and the minimum value of the illumination intensity of the overlapping area is equal to the second ambient illumination change threshold;

[0029] If the multiple low-power solar lamps do not detect a moving lighting target, the second light intensity continues to be reduced to a second ambient light change threshold based on the light intensity information of the current environment; if the multiple low-power solar lamps detect a moving lighting target, the second light intensity is increased to a first ambient light change threshold.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. The present invention obtains voltage data and corresponding time of a low-power solar lamp when receiving solar energy under a standard reference environment, establishes a standard solar voltage change curve through a nonlinear regression algorithm, maps the real-time voltage data obtained under a non-standard reference environment with the solar voltage change curve, obtains the standard reference time, and compares the time difference between the real-time time and the standard reference time to reflect the change of the current environmental sunlight; this method can monitor the current environmental lighting conditions while obtaining electricity, so as to facilitate intelligent adjustment of charging and discharging of the power supply of the low-power solar lamp, extend the service life of the power supply, and ensure that the low-power solar lamp can reasonably adjust the brightness when lighting is needed, thereby improving the intelligence level of the power supply of the low-power solar lamp.

[0032] 2. The present invention establishes the illumination curve of the lamp itself through the illumination range and output voltage of the low-power solar lamp itself through a nonlinear regression algorithm; this method can make more accurate adjustments through the curve data according to the different ambient light during the intelligent adjustment process; at the same time, it can also obtain the power status of the power supply in real time, and further adjust the light intensity according to the different power levels to intelligently schedule the output voltage of the power supply, thereby saving electricity and extending the life and use time of the power supply, thereby improving the intelligence level of the power supply of the low-power solar lamp.

[0033] 3. The present invention uses the physical distance of each low-power solar lamp in an outdoor environment as a judgment threshold for the ambient light distance, obtains the lighting radius of the low-power solar lamp according to the lamp illumination curve, and intelligently adjusts the power supply of two low-power solar lamps by comparing the minimum distance of the lighting radius of the two low-power solar lamps with the judgment threshold; this method can perform intelligent adjustment while ensuring sufficient brightness during actual lighting, thereby saving electricity to the greatest extent, extending battery life and usage time, and improving the intelligence level of the power supply of the low-power solar lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the system flow of the present invention;

[0035] Figure 2 It is a schematic diagram of the judgment process of the ambient light adjustment module of the present invention;

[0036] Figure 3 It is a schematic diagram of the standard reference data set determination process of the present invention;

[0037] Figure 4 It is a schematic diagram of the overlapping illumination range of the low-power solar lamp of the present invention. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0039] Low-power solar lamps are more suitable for lighting in some outdoor environments with sufficient light due to their environmental protection, easy installation and low cost. However, due to the small power supply, long-term charging and discharging will cause a lot of power loss, resulting in a shortened power supply life and a short power supply usage time. The current low-power solar lamps have a low level of intelligence, so they cannot be adjusted intelligently according to the ambient light to extend the power supply life and power usage time. For this reason, the present invention provides a power energy-saving management system for low-power solar lamps. The technical solution is as follows, refer to Figure 1 and Figure 2 As shown:

[0040] An ambient light detection module is used to obtain ambient light intensity information of a plurality of low-power solar lamps, and obtain a first light intensity according to the ambient light intensity information;

[0041] A first light intensity detection module, which obtains a change value of the first light intensity, and when the change value is not less than a change threshold, adjusts the power supply of the plurality of low-power solar lamps;

[0042] A second light intensity detection module, after the power supply of the plurality of low-power solar lamps is adjusted and output, calculates and obtains the second light intensity according to the output of the power supply;

[0043] The ambient light adjustment module calculates the light intensity information of the current environment in combination with the first light intensity and the second light intensity; if the light intensity information of the current environment is greater than a first ambient light change threshold, the second light intensity is reduced to the first ambient light change threshold; if the plurality of the low-power solar lamps do not detect a moving light target, the second light intensity is continued to be reduced to the second ambient light change threshold based on the light intensity information of the current environment; if the plurality of the low-power solar lamps detect a moving light target, the second light intensity is increased to the first ambient light change threshold.

[0044] By acquiring the power data obtained by the low-power solar lamp receiving solar light, the current ambient light information can be obtained. Through this data, the changes in the current light environment can be monitored in real time while the light information is quantified, so as to intelligently adjust the power supply of the low-power solar lamp according to the change value of the current first light intensity, monitor the power supply usage of the low-power solar lamp, and intelligently adjust it under the condition that light is required, so as to ensure that the low-power solar lamp can save power while being used, extend the service life and use time of the power supply, and improve the intelligence level of the power supply of the small-power solar lamp;

[0045] While adjusting, the brightness adjustment process of the low-power solar lamp itself is quantified by obtaining the output voltage and illumination data of the low-power solar lamp itself, so as to intelligently adjust the low-power solar lamp under different ambient illumination; at the same time, the method can also obtain the illumination range of the low-power solar lamp under different output voltages, and intelligently adjust the illumination range by using the physical distance between multiple low-power solar lamps as the brightness threshold, so as to meet the required brightness of the current environment while ensuring the intelligent adjustment process, and to maximize the power saving of the power output, extend the battery life and usage time, so as to improve the intelligence level of the power supply of the low-power solar lamp;

[0046] At the same time, by detecting whether there are targets that need lighting nearby, the output voltage of the power supply of the small-power solar lamp can be further reduced, further saving output power under conditions where lighting is required, thereby further extending battery life and usage time, and improving the intelligence level of the power supply of the small-power solar lamp.

[0047] Embodiment 1

[0048] For specific explanation, the present invention is described in conjunction with the following contents:

[0049] A power energy-saving management system for a low-power solar lamp includes an ambient light detection module, a first light intensity detection module, a second light intensity detection module and an ambient light adjustment module, specifically:

[0050] An ambient light detection module is used to obtain ambient light intensity information of a plurality of low-power solar lamps, and obtain a first light intensity according to the ambient light intensity information; the low-power solar lamps are mainly LED lamps; data is exchanged through communication methods such as wifi;

[0051] Further, voltage data converted from solar energy data of a plurality of the low-power solar lamps is obtained, and light intensity data of each of the low-power solar lamps is calculated based on the voltage data; the light intensity data is obtained based on a large amount of experimental data actually measured in an outdoor environment;

[0052] Taking the sunlight angle of the current environment time as a weight, weighted calculation is performed on the light intensity data of the plurality of low-power solar lamps to obtain average light information; the average light information is the first light intensity;

[0053] The illumination angle is based on the actual scene and multiple data collection time points are set in combination with expert experience. The weight value range is 0-1. The corresponding weights are set for the corresponding angles at different time points based on expert experience and measurement data. The average illumination data corresponding to the voltage data obtained by multiple low-power solar lamps at the current collection time point is used as the first illumination intensity of the current environment.

[0054] In actual use, the voltage data may be different due to the different specifications of different low-power solar lamps. However, the difference in voltage data is relatively large under sufficient light and insufficient light conditions. Therefore, the influence of different specifications on the judgment of ambient light conditions in actual scenes is relatively small. Therefore, the influence of specifications is ignored in the calculation process.

[0055] Since light data is difficult to quantify, in order to enable low-power solar lamps in the current outdoor environment to measure the current light information, the voltage data converted by solar energy is used as the measurement condition of light. At the same time, the light obtained by solar panels at different angles is different. Therefore, the weighted mean calculation is used to further improve the accuracy of light data acquisition, provide accurate quantitative data for subsequent adjustments, facilitate the subsequent intelligent adjustment of power output, and improve the intelligence level of the power supply of small-power solar lamps;

[0056] A first light intensity detection module, which obtains a change value of the first light intensity, and when the change value is not less than a change threshold, adjusts the power supply of the plurality of low-power solar lamps;

[0057] Further, the change value includes an illumination change value and an illumination change point; the change threshold includes an illumination change threshold and an illumination change threshold point;

[0058] In actual lighting conditions, the brightness of the sun is generally different at different times, such as during the day and at night. Therefore, a large amount of experimental data is combined to set a threshold point for light changes so that small-power solar lamps can intelligently switch brightness during the day and at night. However, brightness may be affected in some emergencies, such as when lighting is needed in thick cloud cover or thunderstorms. Therefore, in order to prevent such situations, a light change threshold is set to facilitate intelligent adjustment of small-power solar lamps to ensure that the power output is adjusted when lighting is needed, and that it can also be adjusted when power output is not needed. This ensures the life and use time of the power supply while saving electricity, thereby improving the intelligence level of the power supply of small-power solar lamps.

[0059] Furthermore, a standard reference environment for the low-power solar lamp is obtained, voltage data converted from solar data is obtained according to the standard reference environment, a two-dimensional coordinate system is generated according to the voltage data and the time of acquisition, and a standard solar voltage change curve is established in combination with a nonlinear regression algorithm; the horizontal axis is the time of acquisition, and the vertical axis is the voltage data; the standard reference environment is a sunny day, and the specific weather conditions are analyzed and set based on the historical weather data of the outdoor environment;

[0060] In order to facilitate quantitative analysis, a standard reference environment is established through actual weather data to generate a standard solar voltage change curve; this method can help the intelligent power supply regulation of small-power solar lamps to ensure the life and use time of the power supply and improve the intelligence level of the power supply of small-power solar lamps;

[0061] Furthermore, multiple standard reference environments are set according to climate data, and multiple standard solar voltage change curves are established; considering that solar radiation in different regions and seasons is different, multiple standard reference environments are set for different regions and seasons, for example, different standard solar voltage change curves are established according to spring, summer, autumn and winter, so as to further improve the accuracy of intelligent adjustment of low-power solar lamps and the level of intelligent adjustment of the power supply of low-power solar lamps;

[0062] In a non-standard reference environment, the low-power solar lamp obtains real-time voltage data at the current collected real-time time, maps the real-time voltage data to the standard solar voltage change curve, and obtains the standard reference time;

[0063] The difference between the standard reference time and the real time is the illumination change value; the standard reference time is the illumination change point;

[0064] Further, the standard reference time also includes collecting t times (for example, but not limited to 6 times, 7 times, 8 times) of the standard reference time in the kth time period, and calculating t times of the illumination change value;

[0065] Reference Figure 3 As shown, the illumination similarity of t illumination change values ​​is calculated. If the illumination similarity is less than the similarity threshold, the number N1 of the illumination change values ​​less than the similarity threshold and the number N2 of the illumination change values ​​not less than the similarity threshold are counted; the corresponding illumination data of the maximum value of N1 and N2 is used as the standard reference data set of the illumination change value; in the specific implementation process, the actual illumination intensity may change within a period of time due to cloudy weather. In order to prevent the illumination intensity from decreasing for a short time or for a long time, multiple data collection is performed within a set time period to avoid the situation where the illumination intensity decreases due to the short-term blocking of the sun by cloudy weather, or to identify the long-term illumination intensity decrease, so as to improve the accuracy and intelligence level of intelligent power supply regulation;

[0066] The illumination similarity is obtained by dividing the voltage value actually obtained by the voltage value corresponding to the voltage change curve of the standard solar energy voltage in the current time period; the similarity threshold is the data set based on expert experience, for example, but not limited to 0.9, 0.92, 0.95, etc.;

[0067] The average of the illumination change values ​​of the standard reference data set is used as the illumination change value;

[0068] If the illumination change value is not less than the illumination change threshold value and / or the illumination change threshold point, the power supply of the plurality of low-power solar lamps is detected and adjusted; the threshold point is set according to the time of sunrise or sunset in different regions and seasons; the illumination change threshold value is based on the historical illumination intensity data of different regions in different seasons to determine whether the environment needs illumination, and different time differences are set as illumination change thresholds in combination with expert experience, for example, but not limited to 1 hour, 2 hours, 3 hours, etc.;

[0069] For example, on the standard solar voltage change curve, the voltage value obtained at 12 noon is 5V, and the voltage value obtained at 18:00 is 2V. However, due to rainy weather, the actual voltage value obtained at 12 noon is 2V. Since the time difference is 4 hours, the change threshold is 2 hours, which is larger than the change threshold. Therefore, it is judged that the lighting conditions have changed dramatically and illumination is needed.

[0070] A second light intensity detection module, after the power supply of the plurality of low-power solar lamps is adjusted and output, calculates and obtains the second light intensity according to the output of the power supply;

[0071] Furthermore, the power output is calculated to obtain the second light intensity by establishing a two-dimensional coordinate system through the voltage data and the illumination range of the low-power solar lamp, wherein the voltage data is the horizontal axis and the illumination range is the vertical axis; a lamp illumination curve is established according to a nonlinear regression algorithm, and the voltage data of the power supply is mapped to the lamp illumination curve to obtain the second light intensity; in addition to the ambient light information, the output voltage and illumination of the low-power solar lamp need to be quantified, and for this purpose, a lamp illumination curve is established to facilitate quantification during intelligent adjustment, thereby ensuring that the power supply can output corresponding light brightness under different output voltages, thereby achieving accurate intelligent adjustment and improving the intelligence level of the power supply of the low-power solar lamp;

[0072] An ambient light adjustment module, which calculates the light intensity information of the current environment by combining the first light intensity and the second light intensity;

[0073] Furthermore, the low-power solar lamp maps the voltage data obtained by solar energy to the standard solar voltage change curve to obtain the first light intensity; the low-power solar lamp maps the voltage data of the power supply to the lamp illumination curve to obtain the second light intensity; by quantifying the illumination information of the ambient illumination and the low-power solar lamp through each curve, the accuracy of intelligent adjustment according to the ambient illumination can be ensured, the output power of the power supply can be accurately adjusted, the life and service life of the power supply can be ensured, and the intelligence level of the power supply of the low-power solar lamp can be improved;

[0074] If the illumination intensity information of the current environment is greater than a first environment illumination change threshold, reducing the second illumination intensity to the first environment illumination change threshold;

[0075] Further, a minimum physical distance between the low-power solar lamps is obtained, and the minimum physical distance is used as the first ambient light change threshold;

[0076] Obtaining the illumination radius of the second illumination intensity of the low-power solar lamp; calculating the minimum value of the sum of the illumination radiuses between the low-power solar lamps at the minimum physical distance and obtaining corresponding voltage data according to the illumination curve of the lamps; if the minimum value of the sum of the illumination radiuses is greater than the first ambient illumination change threshold, reducing the voltage data according to the illumination curve of the lamps until the minimum value of the sum of the illumination radiuses is equal to the first ambient illumination change threshold;

[0077] In the lighting environment of low-power solar lamps, excessive illumination between lamps will also lead to excessive power output and excessive power loss. For example, two lamps illuminate a section of road. In fact, the light intensity of one lamp is enough for lighting, but the two lamps use the same light intensity for lighting, resulting in excessive lighting of the road section and excessive power output.

[0078] To this end, the illumination radius of the low-power solar lamp of this specification is obtained through the illumination curve of the lamp and a large amount of experimental data. The illumination radius is obtained by obtaining the straight-line distance from the photometer to the low-power solar lamp when the photometer reaches the specified value in the experiment; different illumination radii are obtained according to the illumination curve of the lamp, and the shortest straight-line distance between the two lamps is combined with the threshold of illumination change to make a judgment, so that when the road section lighting is met, there will be no over-illumination, and the output power of multiple low-power solar lamp power supplies is saved, so as to extend the use time of the power supply, increase the service life of the power supply, and improve the intelligence level of the power supply of the low-power solar lamp;

[0079] Furthermore, the sum of the illumination radii of the low-power solar lamps has an overlapping area, and the minimum value of the illumination intensity of the overlapping area is equal to the second ambient illumination change threshold; Figure 4 As shown, 1 and 2 are low-power solar lamps, the circles are the corresponding illumination ranges, and 3 is the overlapping area of ​​the illumination ranges;

[0080] During the lighting process, the light brightness at the edge is the lowest. In order to ensure that the area with the lowest brightness can meet the minimum requirement of human eyes in the process of intelligent adjustment, and also save power to the greatest extent, the second ambient light change threshold is set in the overlapping area to save power while meeting the minimum light brightness, extend the power supply usage time and power supply life, and improve the intelligence level of the power supply of small-power solar lamps;

[0081] In order to ensure that the area with the lowest brightness can be illuminated during the process of intelligent lighting adjustment, the brightness of the edge areas of single and multiple low-power solar lamps is measured by a photometer through experiments. The brightness of a single edge area and the brightness of multiple areas are superimposed to obtain the superimposed brightness data, and the corresponding superimposed brightness calculation formula is obtained based on expert experience; the second ambient light change threshold is based on the experimental results to obtain the minimum brightness that the human eye can see clearly.

[0082] Embodiment 2

[0083] On the basis of the first embodiment, in order to further save power, the following measures are taken:

[0084] By detecting whether there is a moving lighting target near the low-power solar lamp, intelligent adjustment can be performed; the specific judgment content is as follows:

[0085] If the plurality of the low-power solar lamps do not detect a moving illumination target, then the second illumination intensity continues to be reduced to a second ambient illumination change threshold value according to the illumination intensity information of the current environment; if the plurality of the low-power solar lamps detect a moving illumination target, then the second illumination intensity is increased to a first ambient illumination change threshold value;

[0086] The second ambient light change threshold is the lowest light brightness that the human eye can see clearly. In the specific implementation process, due to the long road section, maintaining the first light brightness for a long time to illuminate the road surface is likely to cause additional power loss when no one is around. Especially in outdoor environments, due to the small flow of people, maintaining the first light brightness for a long time is more likely to cause additional power loss.

[0087] Therefore, by detecting whether there is a moving illuminated target as adjustment information, during the detection process, for example, an infrared sensor is used as a trigger condition. If the recognition accuracy is to be further improved, a camera can be connected to identify whether the target object appears through image recognition algorithms such as CNN;

[0088] In the process of intelligent adjustment, the actual storage power of the low-power solar lamp can be further detected, and when the second ambient light change threshold is met, different intelligent adjustments of light can be made according to the actual power;

[0089] For example, if the battery power is low, the lighting radius can be appropriately reduced, and if the battery power is high, the lighting radius can be increased to meet the second light change threshold in the lowest brightness area, so as to achieve the purpose of further intelligent lighting adjustment, further reduce power loss, extend the power supply time and power life, and improve the intelligence level of small-power solar lamp power supply.

[0090] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power energy-saving management system for low-power solar lamps, characterized in that: include: An ambient light detection module is used to obtain ambient light intensity information of a plurality of low-power solar lamps, and obtain a first light intensity according to the ambient light intensity information; A first light intensity detection module, which obtains a change value of the first light intensity, and when the change value is not less than a change threshold, adjusts the power supply of the plurality of low-power solar lamps; A second light intensity detection module, after the power supply of the plurality of low-power solar lamps is adjusted and output, calculates and obtains the second light intensity according to the output of the power supply; The ambient light adjustment module calculates the light intensity information of the current environment in combination with the first light intensity and the second light intensity; if the light intensity information of the current environment is greater than a first ambient light change threshold, the second light intensity is reduced to the first ambient light change threshold; if the plurality of the low-power solar lamps do not detect a moving light target, the second light intensity is continued to be reduced to the second ambient light change threshold based on the light intensity information of the current environment; if the plurality of the low-power solar lamps detect a moving light target, the second light intensity is increased to the first ambient light change threshold.

2. The power energy-saving management system for low-power solar lamps according to claim 1, characterized in that: The ambient light intensity information obtaining the first light intensity includes: Acquire voltage data converted from solar energy data of a plurality of the low-power solar lamps, and calculate light intensity data of each of the low-power solar lamps according to the voltage data; The sunlight angle at the current environment time is used as a weight to perform weighted calculation on the light intensity data of the plurality of low-power solar lamps to obtain average light information; the average light information is the first light intensity.

3. The power energy-saving management system for low-power solar lamps according to claim 1, characterized in that: The first light intensity detection module obtains the change value of the first light intensity, and when the change value is not less than the change threshold, detects and adjusts the power supply of the plurality of low-power solar lamps, including: The change value includes the illumination change value and the illumination change point; the change threshold includes the illumination change threshold and the illumination change threshold point; if the illumination change value is not less than the illumination change threshold and / or the illumination change threshold point, the power supply of the plurality of the low-power solar lamps is detected and adjusted.

4. The power energy-saving management system for low-power solar lamps according to claim 3, characterized in that: The acquisition of the illumination change value and the illumination change point includes: Obtain a standard reference environment for the low-power solar lamp, obtain voltage data converted from solar data according to the standard reference environment, generate a two-dimensional coordinate system according to the voltage data and the time of acquisition, and establish a standard solar voltage change curve in combination with a nonlinear regression algorithm; the horizontal axis is the time of acquisition, and the vertical axis is the voltage data; In a non-standard reference environment, the low-power solar lamp obtains real-time voltage data at the current collected real-time time, maps the real-time voltage data to the standard solar voltage change curve, and obtains the standard reference time; The difference between the standard reference time and the real time is the illumination change value; the standard reference time is the illumination change point.

5. The power energy-saving management system for low-power solar lamps according to claim 4, characterized in that: A plurality of the standard reference environments are set according to climate data, and a plurality of the standard solar voltage variation curves are established.

6. The power energy-saving management system for low-power solar lamps according to claim 4, characterized in that: The standard reference time also includes: Collecting the standard reference time t times in the kth time period, and calculating the illumination change value t times; Calculate the illumination similarity of t illumination change values, if the illumination similarity is less than a similarity threshold, then count the number N1 of the illumination change values ​​less than the similarity threshold and the number N2 of the illumination change values ​​not less than the similarity threshold; take the illumination data corresponding to the maximum value of N1 and N2 as the standard reference data set of the illumination change value; An average of the illumination change values ​​of the standard reference data set is used as the illumination change value.

7. The power energy-saving management system for low-power solar lamps according to claim 1, characterized in that: The power output is calculated to obtain the second light intensity by establishing a two-dimensional coordinate system through the voltage data and illumination range of the low-power solar lamp, wherein the voltage data is the horizontal axis and the illumination range is the vertical axis; a lamp illumination curve is established based on a nonlinear regression algorithm, and the voltage data of the power supply is mapped to the lamp illumination curve to obtain the second light intensity.

8. The power energy-saving management system for low-power solar lamps according to claim 1, characterized in that: The calculation of the first illumination intensity and the second illumination intensity includes: The low-power solar lamp maps the voltage data obtained from solar energy to a standard solar voltage variation curve to obtain a first light intensity; the low-power solar lamp maps the voltage data of the power supply to a lamp illumination curve to obtain a second light intensity.

9. The power energy-saving management system for low-power solar lamps according to claim 1, characterized in that: If the illumination intensity information of the current environment is greater than a first environment illumination change threshold, reducing the second illumination intensity to the first environment illumination change threshold includes: Acquire the minimum physical distance between the low-power solar lamps, and use the minimum physical distance as the first ambient light change threshold; Obtain the lighting radius of the second light intensity of the low-power solar lamp; calculate the minimum value of the sum of the lighting radiuses between the low-power solar lamps at the minimum physical distance and obtain corresponding voltage data according to the lamp illumination curve; if the minimum value of the sum of the lighting radiuses is greater than the first ambient light change threshold, reduce the voltage data according to the lamp illumination curve until the minimum value of the sum of the lighting radiuses is equal to the first ambient light change threshold.

10. A power energy-saving management system for low-power solar lamps according to claim 9, characterized in that: The sum of the illumination radii of the low-power solar lamps has an overlapping area, and the minimum value of the illumination intensity of the overlapping area is equal to the second ambient illumination change threshold.

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