Intelligent street lamp scheduling method and system for centralized energy storage linkage

Abstract

The application discloses a centralized energy storage linkage-oriented intelligent street lamp scheduling method and system, and relates to the technical field of intelligent street lamps. The method comprises the following steps: S1, real-time collection of energy storage scheduling data and data preprocessing; S2, identification of the light emitting capacity difference of each street lamp, evaluation of the light emitting decay state of each street lamp, and determination of the illumination gap of each street lamp; S3, generation of a street lamp energy supply priority sequence, further determination of the energy storage state, execution of differentiated energy supply scheduling, and power constraint checking; and S4, generation of street lamp energy supply scheduling instructions and formation of energy storage differentiated energy supply scheduling records. The problems of uneven road illumination and unreasonable energy storage allocation caused by the light emitting capacity difference of street lamps during unified dimming in the centralized energy storage power supply scene are solved.

Description

Technical Field

[0001] This invention relates to the field of smart street light technology, specifically to a smart street light scheduling method and system for centralized energy storage linkage. Background Technology

[0002] With the continuous development of urban road lighting, intelligent transportation, and new energy infrastructure, smart streetlights are gradually evolving from single lighting devices into comprehensive urban infrastructure integrating lighting control, energy management, environmental sensing, and road operation monitoring. Meanwhile, the application of centralized energy storage, photovoltaic power generation, and intelligent control technologies in road lighting scenarios is increasing, providing crucial support for improving road lighting operational efficiency, energy utilization levels, and the intelligent management capabilities of urban infrastructure.

[0003] For example, Chinese patent CN114138450B discloses a method, device, and readable storage medium for scheduling composite tasks in a smart street light system. The method includes: upon receiving a preset single-task alarm message, determining the target loop edge computing controller and the target line that needs to trigger the composite task based on a preset edge node dependency table and the identifier of each individual light; determining the target composite task to be triggered by the target street light line based on a preset task relationship table and the preset single-task alarm message, and determining at least one target single-light edge computing controller required for the execution of the target composite task; splitting the target composite task into a main task and at least one intermediate task; if the target composite task is a control task, then sending the main task to the target loop edge computing controller for execution, and sending the intermediate task to the corresponding target single-light edge computing controller for execution. This solution achieves the scheduling of composite tasks in a smart street light system and ensures accuracy, real-time performance, and execution efficiency.

[0004] For example, Chinese patent CN120295765A discloses a smart street light data analysis system based on edge computing, including: hardware-level isolation control of NPU / GPU computing units through physical pin mapping of edge chips; generating a cellular topology network based on geographic coordinates, dynamically calling cameras, communication modules, and computing units of neighboring nodes to build a microservice chain; generating binary codes through parameters such as illumination, rain / fog, and pedestrian flow to trigger on-demand loading of lightweight model plugins; improving the bus protocol to achieve pin-level computing power exclusive access across nodes and microsecond-level response; and defining event priority and elastic release rules to ensure self-healing from anomalies. This invention breaks through the contradiction between rigid resource scheduling and privacy latency in traditional edge systems. Hardware isolation and dynamic coding work together to achieve algorithm adaptation in sudden scenarios, and decentralized topology and geographic-driven verification ensure data security, providing a complete solution for smart street lights with high real-time performance, high reliability, and low power consumption.

[0005] However, in centralized energy storage-linked smart street light systems, the same energy storage unit typically powers streetlights across multiple road sections. Due to differences in installation time, cumulative lighting duration, operating environment, and aging status of each streetlight, even when receiving the same dimming command, their actual illuminance may vary significantly. When the energy storage capacity is insufficient or the system enters energy-saving operation mode, if the streetlight power is still reduced by a uniform ratio, aging streetlights will be more likely to create localized dark areas, while streetlights with higher luminous efficiency may still experience over-illumination, leading to uneven road illuminance and unreasonable energy consumption. Therefore, how to dynamically identify the differences in luminous capacity of different streetlights based on actual illuminance feedback, cumulative operating data, and aging status, and to implement differentiated energy supply scheduling under limited energy storage resources, is a practical technical problem that needs to be solved.

[0006] Therefore, in order to address the above problems, there is an urgent need for intelligent street light scheduling methods and systems that integrate centralized energy storage. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a smart street light scheduling method and system for centralized energy storage linkage, which solves the problems of uneven road illumination and unreasonable energy storage allocation during unified dimming due to differences in the luminous capabilities of street lights in centralized energy storage power supply scenarios.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a smart street light scheduling method for centralized energy storage linkage, comprising the following steps: S1, real-time collection of energy storage scheduling data, preprocessing of the energy storage scheduling data, and construction of a basic dataset for street light scheduling within the power supply area corresponding to the same energy storage cabinet; S2, identification of lighting deviations of each street light based on the basic dataset for street light scheduling, evaluation of the light decay status of each street light, identification of street lights with reduced light-emitting capacity based on the light decay status, and determination of the illuminance gap of each street light; S3, generation of a street light power supply priority sequence based on the light decay status and illuminance gap, determination of the energy storage status based on the energy storage scheduling data, execution of differentiated power supply scheduling based on the street light power supply priority sequence and energy storage status, and power constraint verification of the differentiated power supply scheduling results; S4, generation of street light power supply scheduling instructions based on the differentiated power supply scheduling results, and receipt of execution results to form a differentiated energy storage power supply scheduling record.

[0009] Furthermore, the specific process of real-time collection of energy storage scheduling data is as follows: the ambient light intensity in the power supply area corresponding to the same energy storage cabinet is collected in real time through an ambient light sensor. When the ambient light intensity is lower than the lighting threshold, a lighting start command is issued to each street light in the corresponding power supply area to control each street light to enter the lighting operation state. For the street lights in the power supply area corresponding to the same energy storage cabinet, energy storage scheduling data is collected in real time. The energy storage scheduling data includes: energy storage cabinet number, energy storage state of charge (SOC), energy storage output power, street light number, street light section number, street light operating power, street light cumulative lighting time, street light installation time, illuminance value at street light monitoring point, illuminance collection timestamp, and traffic flow of the corresponding road section.

[0010] Further, the specific process of preprocessing energy storage dispatch data to construct a basic dataset for street light dispatch within the power supply area corresponding to the same energy storage cabinet is as follows: Using the illuminance collection timestamp as a benchmark, the energy storage dispatch data is time-aligned according to a preset unified sampling period; based on the energy storage cabinet number, the street light numbers within the power supply area corresponding to the same energy storage cabinet are collected, and the traffic flow of the corresponding road segment is associated with the street light numbers within that road segment based on the road segment number to which the street light belongs; the range of the energy storage state of charge (SOC), energy storage output power, street light operating power, and illuminance value at the street light monitoring point are verified, and data exceeding the equipment's range is removed; for missing street light operating power, street light monitoring point illuminance value, and energy storage output power, linear interpolation is used to fill in the missing traffic flow and energy storage SOC of the corresponding road segment, using the corresponding data from the previous sampling period; the preprocessed energy storage dispatch data is then stored in association to form a basic dataset for street light dispatch within the power supply area corresponding to the same energy storage cabinet.

[0011] Furthermore, the specific process for identifying the lighting deviation of each street light based on the street light scheduling basic dataset and evaluating the luminous decay status of each street light is as follows: For each street light number, calculate the corresponding street light unit power illuminance value based on the illuminance value of the street light monitoring point and the street light operating power; read the street light unit power illuminance value of the corresponding street light number within the preset benchmark collection period after the street light installation time and closest to the street light installation time, and take the median to obtain the benchmark unit power illuminance value of the corresponding street light number; construct a sliding time window, calculate the median of the street light unit power illuminance value within the current sliding time window, and obtain the current unit power illuminance of the corresponding street light number. The system calculates the streetlight illumination deviation value for the corresponding streetlight number based on the benchmark unit power illuminance value and the current unit power illuminance value; it counts the number of sampling periods within the current sliding time window where the streetlight unit power illuminance value is less than the product of the benchmark unit power illuminance value and a preset attenuation ratio, and divides this number by the total number of sampling periods within the current sliding time window to obtain the attenuation duration value for the corresponding streetlight number; it calculates the time difference between the current illuminance collection timestamp and the streetlight installation time to obtain the streetlight's service life; and it combines the attenuation duration value, the normalized cumulative streetlight illumination time, the normalized streetlight service life, and the streetlight illumination deviation value to obtain the streetlight luminous decay status value.

[0012] Furthermore, the specific process for identifying streetlights with diminishing luminous capacity based on their luminous decay status and determining the illuminance gap of each streetlight is as follows: Read the luminous decay status values ​​of all streetlights corresponding to the same energy storage cabinet number. When the luminous decay status value is greater than the luminous decay threshold, mark the corresponding streetlight number as a streetlight with diminishing luminous capacity; when the luminous decay status value is less than or equal to the luminous decay threshold, mark the corresponding streetlight number as a normally luminous streetlight. For each streetlight, subtract the illuminance value of the streetlight monitoring point from the preset target illuminance value corresponding to the streetlight's road segment number to obtain the illuminance gap value. When the illuminance gap value is greater than 0, retain the original illuminance gap value; when the illuminance gap value is less than or equal to 0, set the illuminance gap value to 0. Link and store the energy storage cabinet number, streetlight number, street segment number, decay duration value, streetlight luminous decay status value, luminous decay streetlight mark, normally luminous streetlight mark, and illuminance gap value.

[0013] Furthermore, considering the streetlight luminous decay status and illuminance gap, the specific process for generating a streetlight power supply priority sequence is as follows: For each streetlight number within the power supply area corresponding to the same energy storage cabinet number, a streetlight power supply priority sequence is generated according to the sorting rules. The sorting rules are as follows: streetlights with luminous decay are placed before streetlights with normal luminous function; among streetlights with the same marking, they are sorted from largest to smallest illuminance gap value; when the illuminance gap values ​​are the same, they are sorted from largest to smallest luminous decay status value; when the luminous decay status values ​​are the same, they are sorted from largest to smallest traffic flow of the road segment; when the traffic flow of the road segment is the same, they are sorted in ascending order according to the streetlight number sequence.

[0014] Furthermore, the specific process of determining the energy storage status based on energy storage scheduling data and performing differentiated energy supply scheduling in conjunction with the street light power supply priority sequence and energy storage status is as follows: Real-time reading of the energy storage state of charge (SOC). When the SOC is greater than the energy storage scheduling threshold, the energy storage power supply status is determined to be a sufficient power supply status; when the SOC is less than or equal to the energy storage scheduling threshold, the energy storage power supply status is determined to be an energy-saving power supply status. Adjusting the street light power supply according to the energy storage power supply status: When the energy storage power supply status is sufficient, the first N street lights in the street light power supply priority sequence with an illuminance deficit value greater than 0 are identified as compensation targets, and their power supply is increased while maintaining the current power supply of the remaining street lights unchanged; when the energy storage power supply status is energy-saving, the first M street lights in the street light power supply priority sequence are identified as backup targets, their current power supply remains unchanged, and for the remaining street lights other than the backup targets, their power supply is sequentially reduced from back to front according to the street light power supply priority sequence.

[0015] Furthermore, the specific process for power constraint verification of the differentiated energy supply scheduling results is as follows: Power boundary verification is performed on the adjusted power supply of each street light, limiting the adjusted power supply of each street light to between the rated minimum power supply and the rated maximum power supply of the corresponding street light; the adjusted power supply of each street light number within the power supply area corresponding to the same energy storage cabinet number is summed to obtain the total adjusted power supply; when the total adjusted power supply is greater than the energy storage output power, the adjusted power supply of each street light number is reduced sequentially from back to front according to the street light power supply priority sequence until the total adjusted power supply is less than or equal to the energy storage output power; when the total adjusted power supply is less than or equal to the energy storage output power, the current allocation result of the adjusted power supply is maintained.

[0016] Furthermore, the specific process of generating street light power supply scheduling instructions based on differentiated power supply scheduling results and receiving execution results to form energy storage differentiated power supply scheduling records is as follows: Differential power supply scheduling instructions are generated according to the adjusted power supply corresponding to each street light number, and these instructions are sent to the corresponding street light controllers for execution; the execution results of the instructions are received from the corresponding street light controllers, including successful and unsuccessful execution; when the instruction execution result is successful, the energy storage cabinet number, street light number, street segment number to which the street light belongs, original street light operating power, adjusted power supply, energy storage power supply status, and scheduling instruction generation time are associated and stored to form an energy storage differentiated power supply scheduling record; when the instruction execution result is unsuccessful, the corresponding street light number is marked as an abnormal street light for scheduling execution, and the original street light operating power of the corresponding street light is retained.

[0017] The second aspect of this invention provides a smart street light dispatching system for centralized energy storage linkage, comprising: a dispatching data acquisition and processing module, used to acquire energy storage dispatching data in real time, preprocess the energy storage dispatching data, and construct a basic dataset for street light dispatching within the power supply area corresponding to the same energy storage cabinet; a street light luminous capacity identification module, used to identify the lighting deviation of each street light based on the basic dataset for street light dispatching, evaluate the luminous decay state of each street light, identify street lights with luminous capacity decay based on the luminous decay state, and determine the illuminance gap of each street light; a differentiated energy supply dispatching module, used to generate a street light energy supply priority sequence based on the luminous decay state and illuminance gap, determine the energy storage state based on the energy storage dispatching data, execute differentiated energy supply dispatching based on the street light energy supply priority sequence and energy storage state, and perform power constraint verification on the differentiated energy supply dispatching results; and a dispatching record management module, used to generate street light energy supply dispatching instructions based on the differentiated energy supply dispatching results, and receive the execution results to form a differentiated energy supply dispatching record for energy storage.

[0018] The present invention has the following beneficial effects: (1) This invention, by combining the illuminance value of street light monitoring points, the operating power of street lights, the cumulative lighting time and the installation time, can identify the differences in the luminous capabilities of different street lights in the same energy storage cabinet power supply area, and avoid judging the lighting status based solely on a unified dimming command.

[0019] (2) By identifying streetlights with diminishing luminous capacity and determining the illuminance gap, this invention can prioritize the discovery of streetlights with insufficient actual illuminance, thereby reducing the risk of aging streetlights forming local dark areas.

[0020] (3) In this invention, by generating a priority sequence for street light power supply and combining it with the energy storage power supply status for differentiated power supply scheduling, the limited energy storage can prioritize the protection of street lights with obvious illuminance gaps, thereby reducing the ineffective power supply to street lights with sufficient illuminance.

[0021] (4) This invention avoids single lamp power exceeding the limit and total power exceeding the energy storage output capacity by power boundary verification and energy storage output power constraint, and ensures that dispatching instructions can be issued and executed stably.

[0022] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0023] Figure 1 A flowchart of a smart street light scheduling method for centralized energy storage linkage; Figure 2 This is a structural diagram of a smart street light dispatching system designed for centralized energy storage linkage. Figure 3 A schematic diagram showing the identification results of street light luminous attenuation status values; Figure 4 A multi-index thermal analysis diagram of the luminous decay state of streetlights. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. As those skilled in the art will understand, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1-4 This invention provides a technical solution: a smart street light scheduling method for centralized energy storage linkage, such as... Figure 1 As shown, the process includes the following steps: S1, real-time acquisition of energy storage scheduling data, preprocessing of the energy storage scheduling data, and construction of a basic dataset for street light scheduling within the power supply area corresponding to the same energy storage cabinet; S2, identification of lighting deviations of each street light based on the basic dataset for street light scheduling, evaluation of the light decay status of each street light, identification of street lights with reduced light-emitting capacity based on the light decay status, and determination of the illuminance gap of each street light; S3, generation of a street light power supply priority sequence based on the light decay status and illuminance gap, determination of the energy storage status based on the energy storage scheduling data, execution of differentiated power supply scheduling based on the street light power supply priority sequence and energy storage status, and power constraint verification of the differentiated power supply scheduling results; S4, generation of street light power supply scheduling instructions based on the differentiated power supply scheduling results, and receipt of execution results to form a differentiated energy storage power supply scheduling record.

[0026] Specifically, the real-time data collection process for energy storage scheduling is as follows: Ambient light intensity is collected in real-time within the power supply area corresponding to the same energy storage cabinet using an ambient light sensor. This sensor is installed at the energy storage cabinet within the corresponding power supply area to characterize the external natural light conditions of that area. The power supply area corresponding to the same energy storage cabinet refers to multiple road sections and their corresponding streetlights managed by the same energy storage cabinet. When the ambient light intensity is lower than the lighting threshold, a lighting start command is sent to each streetlight within the corresponding power supply area, controlling each streetlight to enter the lighting operation state. The lighting start threshold is preset according to road lighting management requirements. The lighting start command is sent from the smart streetlight control platform to each streetlight controller, which then controls the corresponding streetlight to illuminate upon receiving the command. For streetlights within the same power supply area corresponding to the same energy storage cabinet, real-time energy storage dispatch data is collected. The energy storage dispatch data includes: energy storage cabinet number, energy storage state of charge (SOC), energy storage output power, streetlight number, streetlight section number, streetlight operating power, cumulative lighting time of the streetlight, streetlight installation time, illuminance value at the streetlight monitoring point, illuminance collection timestamp, and traffic flow of the corresponding road section. The data is collected by the battery management system of the energy storage cabinet, including the State of Charge (SOC) and output power. Streetlight operating power and cumulative lighting time are collected by the streetlight controller. Streetlight installation time is obtained from the streetlight maintenance log. Illuminance values ​​at streetlight monitoring points are collected by illuminance sensors located within the corresponding streetlight's illumination area. Traffic flow for the corresponding road segment is collected by video detection equipment installed at the road monitoring location, covering the vehicle passage detection area. The preset time window is consistent with the subsequent preset unified sampling period for energy storage scheduling data, preferably 1 to 15 minutes. The unit for traffic flow for the corresponding road segment is vehicles per sampling period, representing the vehicle traffic intensity of the corresponding road segment within the current sampling period. The video detection equipment uses vehicle target detection, target tracking, and vehicle counting methods to count the number of vehicles passing through the detection area of ​​the corresponding road segment within the preset time window, obtaining the traffic flow for the corresponding road segment, and associating it with the corresponding streetlight according to its road segment number.

[0027] This implementation plan can automatically collect energy storage and street light operation data after the lighting is turned on, identify differences in luminous capacity by combining the actual illuminance, operating power and aging information of the street lights, and carry out differentiated energy supply scheduling for different street lights under energy storage constraints, thereby reducing local dark areas and excessive lighting, improving the uniformity of road illuminance, energy storage utilization efficiency and scheduling execution reliability.

[0028] Specifically, the process of preprocessing energy storage scheduling data to construct a basic dataset for street light scheduling within the same power supply area of ​​the same energy storage cabinet is as follows: Using the illuminance collection timestamp as a benchmark, the energy storage scheduling data is time-aligned according to a preset unified sampling period. The illuminance collection timestamp is used as the time alignment benchmark because the illuminance value at the street light monitoring point directly reflects the actual lighting effect of the current street light and serves as the basis for subsequent calculations of illuminance values ​​per unit power of street lights, street light lighting deviation values, and illuminance gap determination. By using the illuminance collection timestamp as a unified time benchmark, the state of charge (SOC) of the energy storage, the output power of the energy storage, the operating power of the street light, and the traffic flow of the corresponding road segment are aligned to the same illuminance collection time, thereby ensuring the time consistency of the data used for subsequent identification of differences in luminous capacity and differentiated energy supply scheduling. A pre-set unified sampling period is established based on the data reporting cycle of the street light controller, energy storage cabinet, and illuminance sensor. This ensures that the state of charge (SOC) of the energy storage, energy storage output power, street light operating power, illuminance value at the street light monitoring point, and traffic flow of the corresponding road segment are all within the same sampling period, preferably between 1 minute and 15 minutes. Based on the energy storage cabinet number, the street light numbers within the power supply area corresponding to the same energy storage cabinet are aggregated. Then, based on the road segment number to which the street light belongs, the traffic flow of that road segment is associated with the street light numbers within that segment. Multiple street lights within the same road segment share the traffic flow of that road segment within the same sampling period. The range of energy storage state of charge (SOC), energy storage output power, street light operating power, and illuminance value at street light monitoring points are verified, and data exceeding the equipment's range are eliminated. Specifically, the range of energy storage SOC is 0 to 100%, the range of energy storage output power is determined based on the rated output power of the energy storage cabinet, the range of street light operating power is determined based on the rated power of the corresponding street light, and the range of illuminance value at street light monitoring points is determined based on the rated measurement range of the illuminance sensor.For missing street light operating power, street light monitoring point illuminance values, and energy storage output power, linear interpolation is used to fill in the missing data. Linear interpolation fills in the missing data based on data from two valid sampling periods before and after the missing sampling point. A valid sampling period refers to the sampling period during which the corresponding data was not removed by range verification and was not marked as missing or abnormal data. When the number of consecutively missing sampling points for the same data item is less than or equal to a preset consecutive missing threshold, linear interpolation is used. The preset consecutive missing threshold is pre-set based on a preset unified sampling period and street light scheduling response requirements, preferably 2 to 5 sampling points. When the number of consecutively missing sampling points for the same data item exceeds the preset consecutive missing threshold, linear interpolation is not performed, and the corresponding consecutive missing interval is marked as missing or abnormal data. When a missing sampling point is located at the beginning or end of the current data sequence, resulting in the absence of two valid sampling periods before and after it, linear interpolation is not performed, and the corresponding missing sampling point is marked as missing or abnormal data. Data removed by range verification and data already marked as missing or abnormal data are not considered as adjacent valid data for linear interpolation. For missing traffic flow and State of Charge (SOC) data for the corresponding road segment, the data from the previous sampling period is used to fill in the missing information. If no valid data exists in the previous sampling period, the corresponding data is marked as missing and abnormal, and will not be used in subsequent processes such as identifying streetlight luminous capacity differences, assessing streetlight luminous attenuation, and differentiating power supply scheduling. It will be reinstated for calculation and scheduling once valid data is collected. The preprocessed energy storage scheduling data is stored in association to form a basic dataset for streetlight scheduling within the power supply area corresponding to the same energy storage cabinet. This basic dataset uses the energy storage cabinet number, streetlight number, road segment number, and illuminance collection timestamp as association indices for subsequent identification of luminous capacity differences among streetlights and execution of differentiated power supply scheduling.

[0029] In this implementation plan, by time alignment, street light aggregation, traffic flow correlation, range verification, and missing data completion processing, the energy storage, street light, illuminance, and traffic data within the same energy storage cabinet power supply area have a unified time reference and clear correspondence, reducing the impact of abnormal and missing data on subsequent judgments, thereby improving the data reliability and feasibility of street light luminous capability identification and differentiated energy supply scheduling.

[0030] Specifically, the process of identifying the lighting deviation of each street light based on the street light scheduling dataset and evaluating the light decay status of each street light is as follows: For each street light number, the corresponding street light operating power, street light monitoring point illuminance value, street light cumulative lighting duration, and street light installation time are obtained. The street light operating power characterizes the actual power consumption level of the corresponding street light in the current sampling period; the street light monitoring point illuminance value characterizes the actual lighting effect of the corresponding street light on the road monitoring point in the current sampling period; and the street light cumulative lighting duration and installation time characterize the cumulative usage and natural aging time of the corresponding street light. The street light operating power, street light monitoring point illuminance value, street light cumulative lighting duration, and street light installation time are associated according to the street light number; the street light operating power and street light monitoring point illuminance value are both data that have undergone time alignment, range verification, and missing data processing. The streetlight unit power illuminance value is calculated based on the illuminance value at the streetlight monitoring point and the streetlight operating power. Specifically, the illuminance value at the streetlight monitoring point is divided by the sum of the streetlight operating power and a minimum positive number to obtain the streetlight unit power illuminance value for the corresponding streetlight number. The minimum positive number is used to avoid division by zero when the streetlight operating power is zero; a value of 0.01 is preferred because it is much smaller than the normal streetlight operating power and therefore will not affect the calculation result of the streetlight unit power illuminance value. The streetlight unit power illuminance value is used to characterize the illuminance level formed by the corresponding streetlight under unit power input conditions. Specifically, let the illuminance value at the streetlight monitoring point of streetlight number i during sampling period t be... The operating power of the streetlights is The smallest positive number is Then, the street light unit power illuminance value for the corresponding street light number in the sampling period t is: The system reads the unit power illuminance value of the streetlight corresponding to the streetlight number within the preset benchmark acquisition period that is closest to the streetlight installation time, and takes the median of the unit power illuminance values ​​within the preset benchmark acquisition period to obtain the benchmark unit power illuminance value for the corresponding streetlight number. Within the preset benchmark establishment time limit from the streetlight installation time, continuous sampling periods are selected where the ambient light intensity is below the lighting threshold, the corresponding streetlight is in lighting operation, the streetlight operating power is greater than the preset minimum analysis power, and the illuminance value at the streetlight monitoring point is valid, forming a candidate set of benchmark acquisition periods. The preset minimum analysis power is pre-set based on the rated minimum power of the streetlight. The candidate set of benchmark acquisition periods with the smallest time difference between the start time and the streetlight installation time is determined as the preset benchmark acquisition period. The preset benchmark acquisition period includes a preset number of consecutive valid sampling periods, which is pre-set based on the preset unified sampling period and benchmark lighting stability requirements, preferably 5 to 12 sampling periods. Let the set of sampling periods within the preset benchmark acquisition period for the corresponding streetlight number be... The baseline unit power illuminance value for the corresponding street light number is... Using the median to calculate the baseline unit power illuminance value can reduce the impact of momentary shading during the initial installation phase, short-term fluctuations in the illuminance sensor, and the streetlight startup process on the baseline illuminance level. If a preset baseline collection cycle that meets the conditions is not formed within the preset baseline establishment time limit, the corresponding streetlight number is marked as a streetlight for which baseline data needs to be established. The preset baseline establishment time limit refers to the maximum allowable time range from the streetlight installation time to the establishment of the baseline unit power illuminance value. The preset baseline establishment time limit is pre-set based on the preset unified sampling cycle, the stable operating time of the streetlight after installation and commissioning, the nighttime lighting duration of the corresponding road section, and the number of continuous sampling cycles required for the preset baseline collection cycle, preferably 3 to 7 days. For streetlights for which baseline data needs to be established, the preset baseline unit power illuminance value of the corresponding streetlight number is read and determined as the baseline unit power illuminance value of the corresponding streetlight number. The preset baseline unit power illuminance value is pre-determined and stored based on the rated power of the corresponding streetlight, the installation height of the luminaire, the location of the monitoring point, and the lighting design requirements. A sliding time window is constructed, and the median of the unit power illuminance value of the streetlights within the current sliding time window is calculated to obtain the current unit power illuminance value for the corresponding streetlight number. The current illuminance collection timestamp is used as the end time of the current sliding time window. The current sliding time window is determined forward according to a preset window length. The window length is preset based on the sampling period, streetlight lighting response speed, and attenuation identification time requirements, preferably 30 to 90 minutes. The step size is preferably set to one sampling period. Let the set of sampling periods for the corresponding streetlight number within the current sliding time window be denoted as . The current illuminance value per unit power is The streetlight illumination deviation value for the corresponding streetlight number is calculated based on the reference unit power illuminance value and the current unit power illuminance value. Specifically, the current unit power illuminance value is subtracted from the reference unit power illuminance value, and the result is divided by the sum of the reference unit power illuminance value and a very small positive number. When the result is greater than 0, the result is used as the streetlight illumination deviation value for the corresponding streetlight number; when the result is less than or equal to 0, the streetlight illumination deviation value for the corresponding streetlight number is set to 0. Specifically, the streetlight illumination deviation value for the corresponding streetlight number is... The streetlight illumination deviation value characterizes the degree of decrease in the unit power illuminance level of the corresponding streetlight within the current sliding time window relative to its own baseline unit power illuminance level. A larger streetlight illumination deviation value indicates a more significant decrease in the actual lighting effect of the corresponding streetlight under the same unit power input conditions. The attenuation duration value for the corresponding streetlight is obtained by counting the number of sampling periods within the current sliding time window where the streetlight's unit power illuminance value is less than the product of the baseline unit power illuminance value and a preset attenuation ratio, and dividing this number by the total number of sampling periods within the current sliding time window. Here, both the number of sampling periods and the total number of sampling periods refer to the number of valid sampling periods within the current sliding time window; the sampling period where the streetlight's unit power illuminance value is lower than the product of the baseline unit power illuminance value and a preset attenuation ratio is defined as the attenuation sampling period. The preset attenuation ratio is greater than zero and less than one. It is pre-set based on the fluctuation of the streetlight's unit power illuminance value within a preset baseline acquisition period, the measurement error range of the illuminance sensor, and the sensitivity requirements for attenuation identification. Preferably, it is between 10% and 25%, used to limit the judgment range of a significant decrease in unit power illuminance relative to its own baseline unit power illuminance. The preset attenuation ratio is greater than the relative fluctuation range of the corresponding streetlight's unit power illuminance under normal lighting conditions, used to avoid identifying a decrease in unit power illuminance caused by illuminance sensor measurement fluctuations, short-term shading, or environmental disturbances as luminous attenuation. Let the preset attenuation ratio be... The total number of sampling periods within the current sliding time window is The attenuation duration value corresponding to the street light number is... ,in, , The attenuation duration value ranges from 0 to 1. It characterizes the proportion of streetlights within the current sliding time window that consistently fall below their baseline illumination level. A larger attenuation duration value indicates that the decrease in illuminance per unit power is not an isolated incident but rather has a stronger persistence within the current sliding time window. If there is no valid sampling period within the current sliding time window, the corresponding streetlight number is marked as a data-insufficient streetlight, and its corresponding attenuation duration value is not calculated. The time difference between the current illuminance collection timestamp and the streetlight installation time is calculated to obtain the streetlight's service life; the streetlight's service life characterizes the natural usage time of the corresponding streetlight from its installation and commissioning to the current sampling time. Furthermore, the cumulative lighting time and service life of streetlights are normalized to their upper limits. The upper limit for the cumulative lighting time is pre-set based on the rated lifespan and maintenance / replacement cycle of the streetlights, preferably between 30,000 and 60,000 hours. The upper limit for the service life is pre-set based on the designed service life and maintenance cycle of the streetlights, preferably between 5 and 15 years. The normalized value range is 0 to 1. Specifically, the normalized cumulative lighting time is obtained by dividing the cumulative lighting time by the normalized upper limit. When the cumulative lighting time exceeds the corresponding upper limit, the normalized cumulative lighting time is set to 1. The normalized service life is obtained by dividing the service life by the normalized upper limit. When the service life exceeds the corresponding upper limit, the normalized service life is set to 1. Normalized cumulative streetlight illumination time and normalized streetlight operating years are used together to characterize the lifespan support of the corresponding streetlight. Combining the attenuation duration value, normalized cumulative streetlight illumination time, normalized streetlight operating years, and streetlight lighting deviation value, a streetlight luminous attenuation state value is obtained. Specifically: when the attenuation duration value is less than the attenuation duration threshold, the streetlight luminous attenuation state value is set to 0; when the attenuation duration value is greater than or equal to the attenuation duration threshold, the square root of the normalized cumulative streetlight illumination time multiplied by the normalized streetlight operating years is calculated, and then the result is multiplied by the streetlight lighting deviation value to obtain the streetlight luminous attenuation state value. The attenuation duration threshold is a preset value greater than zero and less than or equal to one, pre-set according to the stability requirements of streetlight lighting attenuation identification; when the attenuation duration value is less than the attenuation duration threshold, it indicates that the unit power illuminance decrease within the current sliding time window has not formed an attenuation phenomenon that meets the continuity requirement, therefore the corresponding streetlight is not identified as an object of luminous capacity attenuation in the current scheduling cycle. Specifically, let the streetlight luminous attenuation state value be... The street light luminous decay state value is In the formula, Indicates the duration of decay. Indicates the duration threshold of decay. Indicates the street light illumination deviation value. This represents the normalized cumulative lighting time of streetlights. This represents the normalized service life of the streetlight. The streetlight luminous decay state value characterizes the overall luminous decay degree of the corresponding streetlight under conditions of continuous decrease in illuminance per unit power. The larger the streetlight luminous decay state value, the higher the current actual decrease in illuminance per unit power of the corresponding streetlight, and the stronger the support from the cumulative lighting time and service life for this illuminance decrease to be an actual aging phenomenon. Since the streetlight lighting deviation value, the normalized cumulative lighting time of the streetlight, and the normalized service life of the streetlight are all non-negative numbers, the streetlight luminous decay state value is a non-negative comprehensive characterization value; the preset luminous decay state threshold used to identify streetlights with declining luminous capacity is preset according to the value range of this comprehensive characterization value. From a physical mechanism perspective, the illuminance value at the streetlight monitoring point is jointly determined by the streetlight light source output, drive power supply status, lamp cover light transmission status, and the fixed installation relationship between the streetlight and the monitoring point. For the same street light number, the installation location, installation height, light emission direction, and monitoring point layout remain unchanged. Therefore, the street light unit power illuminance value obtained by dividing the illuminance value at the monitoring point by the street light's operating power can be used to characterize the actual lighting response level of the corresponding street light under a unit power input. By comparing the current unit power illuminance value with the baseline unit power illuminance value established after the street light's installation, the influence of differences in rated power, installation location, and monitoring point layout of different street lights on the lateral comparison results can be avoided, ensuring that the street light lighting deviation value mainly reflects the degree of decrease in the actual lighting response of the same street light. The street light lighting deviation value is calculated using the relative difference between the baseline unit power illuminance value and the current unit power illuminance value, and the calculation result less than or equal to zero is set to zero, because the luminous decay of the street light corresponds to the unidirectional physical process of decreasing unit power illuminance. When the current unit power illuminance value is not lower than the baseline unit power illuminance value, it is not considered as luminous decay. The relative difference calculation converts street lights with different rated power and different initial illuminance levels into dimensionless attenuation ratios, facilitating subsequent unified comparison and ranking. The attenuation duration value characterizes the duration of the decrease in illuminance per unit power within the current sliding time window. The decrease in lighting response caused by factors such as streetlight aging, deterioration in driving performance, decrease in lamp cover transmittance, and long-term dust accumulation is usually continuous; while changes in illuminance caused by instantaneous sensor fluctuations, short-term obstruction, streetlight startup processes, and local environmental disturbances typically only occur within a portion of the sampling period. Therefore, the attenuation duration threshold is only used to calculate the streetlight luminous decay state value when the illuminance per unit power is consistently lower than the corresponding proportion of the baseline illuminance per unit power, thus reducing the impact of occasional low illuminance on subsequent energy storage scheduling decisions. The normalized cumulative streetlight illumination time characterizes the cumulative usage of the light source chip, driver, and electrical components under long-term power-on operation and thermal cycling; the normalized streetlight operating years characterize the calendar aging of the lamp cover, sealing structure, and optical components under long-term natural environmental conditions.Taking the square root of the product of these two factors allows for a more significant lifespan support when both the cumulative lighting duration and operating years are high, while preventing excessive amplification of streetlight illumination deviation values ​​due to a single lifespan factor when either is low. Since both the normalized cumulative lighting duration and normalized operating years are between zero and one, the square root result is also between zero and one. Therefore, the lifespan correction coefficient is between one and two, ensuring that the streetlight illumination deviation value remains the primary determinant of the streetlight luminous decay state value. Lifespan information is only used to enhance support for the conclusion that continuous illuminance decline is a genuine aging condition. Thus, the streetlight luminous decay state value does not solely characterize the laboratory luminous efficacy decline of a single light source component, but rather represents the comprehensive luminous decay state under fixed streetlight, fixed monitoring point, and effective sampling conditions, characterized by a continuous decline in the actual unit power lighting response of the streetlight, supported by lifespan information. This state value can be directly used for subsequent identification of streetlights with declining luminous capacity and for prioritizing streetlight power supply, ensuring that limited energy storage resources are preferentially allocated to streetlights with more significant actual lighting response declines.

[0031] In this embodiment, Table 1 is a data table of street light luminous decay status values. The decay duration threshold is set to 0.60. The table details the decay duration value, street light illumination deviation value, normalized cumulative lighting time, normalized street light operating years, and street light luminous decay status value for five street light numbers.

[0032] Table 1. Data on Streetlight Luminous Decay Status Values

[0033] like Figure 3 The diagram shows the results of identifying the luminous decay status of streetlights. In the diagram, the horizontal axis represents the streetlight number within the same power supply area corresponding to the same energy storage cabinet, and the vertical axis represents the luminous decay status value of the streetlights. The horizontal line in the diagram represents the preset luminous decay threshold of 0.30. Specifically, the decay duration value of L001 did not reach the preset duration threshold, so its luminous decay status value is set to 0. Although L002 exhibits a continuous decrease in illuminance, its streetlight lighting deviation value and lifespan support are low, resulting in a status value of 0.167, which does not exceed the luminous decay status threshold. The status values ​​of L003, L004, and L005 are 0.323, 0.464, and 0.721, respectively, all exceeding the luminous decay status threshold. This indicates that the decrease in illuminance per unit power of the corresponding streetlights is continuous and supported by cumulative lighting time and years of operation; therefore, they can be marked as streetlights with luminous decay. The system provides a clear and intuitive display of the light decay of different streetlights, which serves as a basis for generating a priority sequence for streetlight power supply based on illuminance gaps, traffic flow on road sections, and energy storage charge status, and for implementing differentiated power supply scheduling.

[0034] like Figure 4The figure shows a multi-indicator thermal analysis chart of street light luminous decay status. The vertical axis represents street light numbers L001 to L005 within the same energy storage cabinet's power supply area, while the horizontal axis represents the decay duration value, street light illumination deviation value D, normalized cumulative lighting time, normalized operating years, and street light luminous decay status value, respectively. Each cell is labeled with the corresponding indicator value, with colors ranging from dark to light reflecting higher values. Specifically, L001 has a decay duration value of 0.420, which does not reach the preset duration threshold; therefore, its luminous decay status value is 0, indicating that the current low illumination phenomenon has not resulted in continuous decay. L002 meets the continuity condition, but its illumination deviation value and lifespan-related indicators are low, resulting in a final status value of 0.167. The attenuation duration, lighting deviation, cumulative lighting duration, and service life of streetlights L003, L004, and L005 gradually increased, with corresponding luminous attenuation values ​​of 0.323, 0.464, and 0.721, respectively. This indicates that the persistence of the decrease in illuminance per unit power and the actual degree of aging support gradually increased. The system can simultaneously present the impact of the decrease in lighting response, persistence, and lifespan information of each streetlight on the luminous attenuation value, providing a basis for subsequent identification of streetlights with declining luminous capacity, generation of streetlight power supply priority sequences, and implementation of centralized energy storage differentiated power supply scheduling.

[0035] In this implementation plan, by constructing a benchmark unit power illuminance value for the streetlights themselves and comparing the unit power illuminance level within the current sliding time window with the benchmark unit power illuminance value, the impact of differences in streetlight installation location, lamp specifications, and monitoring point layout on the judgment of luminous decay can be reduced. Through median calculation, decay ratio determination, and decay duration value screening, misjudgments caused by short-term shading, environmental disturbances, and instantaneous fluctuations in illuminance sensors can be reduced. At the same time, by combining the cumulative lighting time and operating years, a lifespan-support correction is made for the continuous illuminance decline, so that the streetlight luminous decay status value can more accurately reflect the actual degree of luminous capacity degradation, thereby providing a more reliable basis for subsequent identification of streetlights with luminous capacity decay, priority ranking of streetlight power supply, and differentiated power supply scheduling of centralized energy storage.

[0036] Specifically, the process of identifying streetlights with diminishing luminous capacity based on their luminous decay status and determining the illuminance gap of each streetlight is as follows: The luminous decay status values ​​of all streetlights corresponding to the same energy storage cabinet number are read. Each read luminous decay status value corresponds to the end sampling period of the same current sliding time window, ensuring that streetlights corresponding to the same energy storage cabinet number undergo luminous capacity decay judgment at the same scheduling time. For streetlights without a valid sampling period within the current sliding time window and whose luminous decay status value has not been calculated, the luminous capacity decay streetlight marking for the corresponding scheduling period is not executed, and the streetlight operating power in the previous valid scheduling period is retained. When the luminous decay status value is greater than the luminous decay status threshold, the corresponding streetlight number is marked as a streetlight with diminishing luminous capacity; when the luminous decay status value is less than or equal to the luminous decay status threshold, the corresponding streetlight number is marked as a normally luminous streetlight. The luminous decay state threshold is a preset value greater than zero, pre-set based on historical street light luminous decay state values, corresponding street light maintenance and replacement records, and the accuracy rate of luminous capacity decay identification. Since the luminous decay state value is a non-negative comprehensive characterization value, the luminous decay state threshold is preferably between 0.15 and 0.40. A luminous capacity decay street light is used to characterize a street light whose current unit power illuminance is consistently lower than its own benchmark unit power illuminance level, and this illuminance decrease is supported by the cumulative lighting time and years of operation. A normal luminous street light is used to characterize a street light whose luminous decay state value does not exceed the luminous decay state threshold. For each street light, the illuminance gap value is obtained by subtracting the street light monitoring point illuminance value from the preset target illuminance value corresponding to the street light's road segment number. The preset target illuminance value is pre-set based on the road grade, road function type, and road lighting design requirements corresponding to the street light's road segment number. The illuminance gap value is used to characterize the degree of insufficiency of the corresponding street light's current actual illuminance relative to the target illuminance. The illuminance values ​​at streetlight monitoring points are the valid illuminance values ​​corresponding to the end of the current sliding time window sampling period. Preset target illuminance values ​​are pre-written into the streetlight scheduling basic dataset according to the streetlight's road segment number and associated with the corresponding streetlight number. For cases where multiple streetlights are located within the same road segment, each streetlight reads the same preset target illuminance value and calculates its own illuminance gap value based on its corresponding streetlight monitoring point illuminance value. When the illuminance gap value is greater than 0, the original illuminance gap value is retained; when the illuminance gap value is less than or equal to 0, it is set to 0. An illuminance gap value of 0 indicates that the illuminance value at the corresponding streetlight monitoring point has reached or exceeded the corresponding preset target illuminance value, and no illuminance compensation is required. The energy storage cabinet number, streetlight number, streetlight's road segment number, streetlight luminous decay status value, luminous capacity decay streetlight marker, normal luminous streetlight marker, and illuminance gap value are associated and stored. This associated data is used to generate a streetlight power supply priority sequence.During associated storage, the energy storage cabinet number, street light number, and the illuminance collection timestamp corresponding to the end of the current sliding time window sampling period are used as a joint index to establish a correspondence between the street light luminous decay status value, the luminous capacity decay street light marker, the normal luminous street light marker, and the illuminance gap value, and the energy storage supply status and street light operating power within the same scheduling period. The associated stored data is used to generate a street light power supply priority sequence based on the luminous capacity decay street light marker, illuminance gap value, street light luminous decay status value, and the traffic flow of the corresponding road segment.

[0037] In this implementation plan, by reading the luminous decay status value of each street light at the same scheduling time, street lights with declining luminous capacity can be identified based on the continuous decrease in illuminance per unit power and lifespan support information. Simultaneously, by comparing the current effective monitoring point illuminance with the target illuminance of the corresponding road segment, the illuminance gap of each street light can be accurately determined. By associating and storing decay markers, illuminance gaps, luminous decay status values, and traffic flow according to energy storage cabinets and street light numbers, the subsequent energy supply priority sequence can simultaneously reflect the actual luminous capacity of street lights, current lighting demand, and road traffic demand, providing a reliable basis for differentiated energy supply scheduling under centralized energy storage conditions.

[0038] Specifically, the process of generating a street light power supply priority sequence, taking into account the street light light decay status and illuminance gap, is as follows: For each street light number in the power supply area corresponding to the same energy storage cabinet number, a street light power supply priority sequence is generated according to the sorting rules. The street light power supply priority sequence is used to indicate the order in which each street light obtains energy storage power supply guarantee within the current scheduling cycle. The sorting rules are as follows: Streetlights with diminished luminous capacity are ranked before those with normal luminous capacity; streetlights with diminished luminous capacity are used to prioritize streetlights with deteriorating luminous capacity; among streetlights with the same number, they are sorted from largest to smallest illuminance gap value; the larger the illuminance gap value, the higher the degree of insufficient illuminance of the corresponding streetlight; when the illuminance gap values ​​are the same, they are sorted from largest to smallest luminous attenuation status value; the larger the luminous attenuation status value, the higher the degree of luminous capacity degradation of the corresponding streetlight; luminous attenuation status characterizes the degree of degradation of the streetlight's own luminous capacity; illuminance gap value characterizes the degree to which current road lighting needs are met, both reflecting equipment status and road lighting status respectively; when streetlights with the same luminous attenuation status value, they are sorted from largest to smallest traffic flow of their respective road segments; the larger the traffic flow of a road segment, the higher the traffic demand of the corresponding road segment; when the traffic flow of a road segment is the same, they are sorted in ascending order according to their streetlight numbers. The street light numbers are ordered according to the ascending order of the corresponding numerical parts. When the street light number contains both letters and numbers, the letter parts are compared first, and if the letter parts are the same, the numerical parts are sorted in ascending order. The order of the street light numbers is used to determine a unique sorting result when all the aforementioned sorting conditions are the same, so as to avoid the situation of uncertain sorting within the same scheduling cycle.

[0039] In this implementation plan, a multi-level sorting rule is used to prioritize energy supply based on factors such as light decay, insufficient illuminance, and road traffic demand. This clarifies the order in which each street light is supplied during the current scheduling cycle, avoids uncertain sorting, and improves the targeting of energy storage allocation and the stability of scheduling execution.

[0040] Specifically, the process of determining the energy storage status based on energy storage scheduling data and performing differentiated energy supply scheduling in conjunction with the street light power supply priority sequence and energy storage status is as follows: Real-time reading of the energy storage state of charge (SOC), which is collected by the battery management system corresponding to the energy storage cabinet, is used to characterize the current remaining available power level of the energy storage cabinet. When the energy storage SOC is greater than the energy storage scheduling threshold, the energy storage supply status is determined to be a sufficient energy supply status; when the energy storage SOC is less than or equal to the energy storage scheduling threshold, the energy storage supply status is determined to be an energy-saving energy supply status. The energy storage scheduling threshold is preset based on the rated capacity of the energy storage cabinet, the duration of nighttime lighting, and the minimum reserved power requirement, preferably between 20% and 50%. The sufficient energy supply status indicates that the current energy storage power can support lighting compensation scheduling, while the energy-saving energy supply status indicates that the current energy storage power needs to prioritize key street lights and reduce the energy consumption of non-key street lights. The power supply of streetlights is adjusted according to the energy storage supply status: When the energy storage supply status is sufficient, the first N streetlights in the priority power supply sequence with an illuminance deficit value greater than 0 are identified as compensation targets. The power supply of these compensation targets is increased, while the current power supply of the remaining streetlights remains unchanged. Here, N represents the number of streetlights participating in illuminance compensation under sufficient power supply status. N is preferably set to the number of streetlights with reduced luminous capacity identified within the power supply area corresponding to the same energy storage cabinet. When the number of streetlights with an illuminance deficit value greater than 0 in the priority power supply sequence is less than N, all streetlights with an illuminance deficit value greater than 0 are identified as compensation targets. The power supply of the compensation targets is increased step-by-step according to a preset compensation power step, and the increased power supply does not exceed the rated maximum power supply of the corresponding streetlight. The preset compensation power step is pre-set based on the rated power of the corresponding streetlight and the lighting adjustment accuracy requirements, preferably 5% to 20% of the rated power of the corresponding streetlight. When the energy storage supply is in energy-saving mode, the first M streetlights in the priority power supply sequence are designated as backup targets, maintaining their current power supply unchanged. Here, M represents the number of streetlights that need priority lighting maintenance in energy-saving mode. M is determined based on the total number of streetlights within the same energy storage unit's power supply area and a preset backup ratio, preferably 5% to 20%. The lower the State of Charge (SOC) of the energy storage, the smaller the preset backup ratio and M, and M is less than or equal to N. For the remaining streetlights, the power supply is reduced sequentially from back to front according to the priority power supply sequence. Reducing the power supply of a streetlight means gradually decreasing the power supply according to a preset power reduction step size, which is pre-set based on the streetlight's rated power and minimum lighting guarantee requirements, preferably 5% to 20% of the streetlight's rated power. The reduced power supply is not lower than the streetlight's minimum rated power.The reason for implementing differentiated energy dispatch based on the street light power supply priority sequence is that this sequence comprehensively considers factors such as the street light's luminous decay status, illuminance gap, and traffic flow on the corresponding road segment. Street lights at the top of the priority sequence typically have significantly reduced luminous capacity, higher illuminance levels, or higher road traffic demand, thus receiving higher priority for energy supply. Under sufficient energy supply conditions, the energy storage cabinet has ample remaining power. By prioritizing the power supply to the top N street lights in the priority sequence, the actual lighting effect of street lights with insufficient illuminance can be improved, reducing localized dark areas caused by aging lamps and insufficient illuminance, and improving the uniformity of road lighting. Under energy-saving conditions, the available power of the energy storage cabinet is limited. By prioritizing the normal lighting of the top M street lights in the priority sequence and gradually reducing the power supply to street lights further down the priority sequence, the lighting needs of key street lights, key road segments, and street lights with insufficient illuminance can be prioritized under limited energy storage resources. This also reduces energy consumption of low-priority street lights and extends the continuous power supply time of the energy storage cabinet. The approach of reducing power supply sequentially from the back to the front of the street light power supply priority sequence is adopted because street lights at the back of the priority sequence have relatively lower luminous decay, illuminance gaps, and traffic demands. Reducing their power supply has a smaller impact on the overall road lighting quality, thus optimizing the utilization of energy storage resources while ensuring basic road lighting needs. When energy storage is sufficient, priority is given to increasing the power supply to street lights with insufficient illuminance. When energy storage is limited, priority is given to ensuring the power supply to key street lights with larger illuminance gaps. This allows street lights with lower illuminance to receive more power, while street lights with higher illuminance maintain their current power supply or have their power supply appropriately reduced. This gradually reduces the illuminance difference between different street lights and improves the uniformity of road illuminance distribution within the same power supply area.

[0041] In this implementation plan, the power supply status can be dynamically distinguished according to the state of charge (SOC) of the energy storage. The plan also prioritizes or guarantees the power supply of streetlights with insufficient illumination, significant light decay, and high traffic demand, while gradually reducing the power of low-priority streetlights. This reduces local dark areas, improves the uniformity of road illumination, and enhances the utilization efficiency and continuous power supply capacity of energy storage resources under limited energy storage conditions.

[0042] Specifically, the process of power constraint verification for differentiated energy supply scheduling results is as follows: Power boundary verification is performed on the adjusted power supply of each street light, limiting the adjusted power supply of each street light to between its rated minimum and maximum power supply. The rated minimum and maximum power supply are pre-set based on the corresponding street light model, drive power parameters, and minimum road lighting requirements, derived from the corresponding street light product technical parameters. This is to prevent a single street light from having too low a power supply, failing to meet basic lighting needs, or too high a power supply, causing the light fixture to operate beyond its rated capacity. The adjusted power supply of each street light within the same energy storage cabinet numbered area is summed to obtain the total adjusted power supply. This total adjusted power supply characterizes the total street light power supply load that the same energy storage cabinet needs to bear under the current scheduling results. When the adjusted total power supply exceeds the energy storage output power, the adjusted power supply for each street light is reduced sequentially from back to front according to the street light power supply priority sequence, until the adjusted total power supply is less than or equal to the energy storage output power. The power reduction from back to front prioritizes reducing the power of street lights with lower power supply priority, with each reduction following a preset power reduction step size. The reduced adjusted power supply power must still not be lower than the rated minimum power supply power of the corresponding street light. When the adjusted total power supply is less than or equal to the energy storage output power, the current adjusted power supply allocation is maintained. Through the above verification, the power supply for each street light meets the equipment's operating limits, while ensuring that the total power supply demand of all street lights does not exceed the current output capacity of the energy storage cabinet. Once the adjusted power supply for each street light number has been reduced to the rated minimum power supply for that street light, if the total adjusted power supply is still greater than the energy storage output power, an insufficient output warning will be issued. The corresponding street lights will be marked as temporarily out of power supply in order of priority from back to front, and power supply to the temporarily out of power supply street lights will be suspended. After marking each temporarily out of power supply street light, the total adjusted power supply will be recalculated until the total adjusted power supply is less than or equal to the energy storage output power.

[0043] In this implementation plan, by verifying the power boundary of a single lamp and checking the total power constraint of energy storage, it is possible to avoid streetlights operating beyond their rated capacity or below the minimum lighting power, and to ensure that the total power demand after adjustment does not exceed the output capacity of the energy storage cabinet, thereby improving the safety, feasibility and power supply stability of the differentiated power supply scheduling results.

[0044] Specifically, the process of generating street light power supply scheduling instructions based on differentiated power supply scheduling results and receiving execution results to form a differentiated energy storage power supply scheduling record is as follows: Differential power supply scheduling instructions are generated according to the adjusted power supply corresponding to each street light number. These instructions include the energy storage cabinet number, street light number, adjusted power supply, and the scheduling instruction generation time, and are used to instruct the corresponding street light controller to adjust brightness according to the adjusted power supply. The differentiated power supply scheduling instructions are then sent to the corresponding street light controllers for execution. Specifically, the differentiated power supply scheduling instructions are sent to the corresponding street light controllers through the smart street light control platform, and the street light controllers control the drive power output of the corresponding street lights according to the adjusted power supply. The execution results from the corresponding street light controllers are received, including successful and unsuccessful execution results. When the street light controller returns execution confirmation information within the preset confirmation time limit, and the street light number in the execution confirmation information matches the street light number in the differentiated energy supply scheduling instruction, the execution status field is successful, and the absolute value of the difference between the feedback operating power and the adjusted power supply is less than or equal to the preset power allowable deviation, the instruction execution result is determined to be successful. The preset confirmation time limit is pre-set based on the communication cycle and the street light controller's response time, preferably 5 to 60 seconds. The preset power allowable deviation is pre-set based on the street light controller's power adjustment accuracy, preferably 1% to 5% of the adjusted power supply. When the street light controller does not return execution confirmation information within the preset confirmation time limit, or the street light number in the execution confirmation information does not match the street light number in the differentiated energy supply scheduling instruction, or the execution status field is failed, or the absolute value of the difference between the feedback operating power and the adjusted power supply is greater than the preset power allowable deviation, the instruction execution result is determined to be unsuccessful. When the command execution result is successful, the energy storage cabinet number, street light number, street segment number to which the street light belongs, original street light operating power, adjusted power supply, energy storage power supply status, and dispatch command generation time are associated and stored to form a differentiated energy storage power supply dispatch record. This record is used to trace the power adjustment results of each street light under different energy storage power supply statuses. When the command execution result is unsuccessful, the corresponding street light number is marked as a dispatch execution failure street light, and the original street light operating power is retained. Retaining the original street light operating power is to avoid unconfirmed power changes in the event of a dispatch failure, and the abnormal dispatch execution street light status serves as a prompt for subsequent communication testing, controller testing, or drive power supply testing.

[0045] In this implementation plan, differentiated power supply scheduling instructions are generated and issued, enabling each street light to perform lighting control according to the adjusted power supply. Through execution result feedback and scheduling record storage, the scheduling process is traceable and abnormal street lights can be identified, thereby improving the execution reliability of power supply scheduling and the efficiency of operation and maintenance management.

[0046] Reference Figure 2As shown, the second aspect of the present invention provides a smart street light scheduling system for centralized energy storage linkage, applied to the aforementioned smart street light scheduling method for centralized energy storage linkage, comprising: a scheduling data acquisition and processing module, used to acquire energy storage scheduling data in real time, preprocess the energy storage scheduling data, and construct a basic dataset for street light scheduling within the power supply area corresponding to the same energy storage cabinet; a street light luminous capacity identification module, used to identify the lighting deviation of each street light based on the basic dataset for street light scheduling, evaluate the luminous decay state of each street light, identify street lights with luminous capacity decay based on the luminous decay state, and determine the illuminance gap of each street light; a differentiated energy supply scheduling module, used to generate a street light energy supply priority sequence based on the street light luminous decay state and illuminance gap, determine the energy storage state based on the energy storage scheduling data, execute differentiated energy supply scheduling based on the street light energy supply priority sequence and energy storage state, and perform power constraint verification on the differentiated energy supply scheduling results; and a scheduling record management module, used to generate street light energy supply scheduling instructions based on the differentiated energy supply scheduling results, and receive the execution results to form a differentiated energy supply scheduling record for energy storage.

[0047] In this implementation plan, four modules are used to complete data acquisition and processing, light emission capability identification, differentiated energy supply scheduling, and scheduling record management in sequence. This enables unified analysis and collaborative control of street light status within the same energy storage cabinet power supply area, improving the uniformity of street light illumination, the rationality of energy storage allocation, and the traceability of scheduling execution.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. As those skilled in the art will understand, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A smart street light scheduling method for centralized energy storage linkage, characterized in that, Includes the following steps: S1: Real-time collection of energy storage scheduling data, preprocessing of energy storage scheduling data, and construction of basic dataset for street light scheduling within the power supply area corresponding to the same energy storage cabinet; S2, based on the street light scheduling basic dataset, identify the lighting deviation of each street light, evaluate the light emission attenuation status of each street light, identify the street light with reduced light emission capacity based on the light emission attenuation status, and determine the illuminance gap of each street light. S3, combining the street light luminous decay state and illuminance gap, generates a street light power supply priority sequence, determines the energy storage status based on energy storage scheduling data, performs differentiated power supply scheduling based on the street light power supply priority sequence and energy storage status, and performs power constraint verification on the differentiated power supply scheduling results; S4 generates street light power supply scheduling instructions based on differentiated power supply scheduling results, and receives execution results to form energy storage differentiated power supply scheduling records; The specific process for generating the street light power supply priority sequence by combining the street light luminous decay state and illuminance gap is as follows: For each street light number within the power supply area corresponding to the same energy storage cabinet number, a priority sequence for street light power supply is generated according to the sorting rules. The sorting rules are as follows: street lights with diminishing luminous capacity are placed before street lights with normal luminous capacity; among street lights with the same marking, they are sorted from largest to smallest illuminance gap value; when the illuminance gap values ​​are the same, they are sorted from largest to smallest luminous capacity decay value; when the luminous capacity decay values ​​are the same, they are sorted from largest to smallest traffic flow of the road segment. When the traffic flow of the road segments is the same, the streetlights are sorted in ascending order according to their streetlight numbers. The specific process of determining the energy storage status based on energy storage scheduling data and performing differentiated energy supply scheduling in conjunction with the street light power supply priority sequence and energy storage status is as follows: The energy storage state of charge (SOC) is read in real time. When the SOC is greater than the energy storage dispatch threshold, the energy storage supply status is determined to be sufficient; when the SOC is less than or equal to the energy storage dispatch threshold, the energy storage supply status is determined to be energy-saving. The power supply of the streetlights is adjusted according to the energy storage supply status. When the energy storage supply is in a sufficient supply state, the first N streetlights in the streetlight power supply priority sequence with an illuminance gap value greater than 0 are identified as compensation targets, the power supply of the compensation targets is increased, and the current power supply of the remaining streetlights remains unchanged. When the energy storage supply is in the energy-saving supply state, the first M streetlights in the streetlight supply priority sequence are identified as the backup targets. The current power supply of the backup targets remains unchanged. For the remaining streetlights, the power supply of the corresponding streetlights is reduced in order from back to front according to the streetlight supply priority sequence.

2. The smart street light scheduling method for centralized energy storage linkage according to claim 1, characterized in that, The specific process for real-time acquisition of energy storage scheduling data is as follows: The ambient light intensity within the power supply area corresponding to the same energy storage cabinet is collected in real time by an ambient light sensor. When the ambient light intensity is lower than the lighting threshold, a lighting start command is sent to each street light in the corresponding power supply area to control each street light to enter the lighting operation state. For the street lights in the power supply area corresponding to the same energy storage cabinet, energy storage scheduling data is collected in real time. The energy storage scheduling data includes: energy storage cabinet number, energy storage state of charge (SOC), energy storage output power, street light number, street light section number, street light operating power, street light cumulative lighting time, street light installation time, illuminance value at street light monitoring point, illuminance collection timestamp, and traffic flow of the corresponding road section.

3. The smart street light scheduling method for centralized energy storage linkage according to claim 2, characterized in that, The specific process of preprocessing energy storage scheduling data to construct a basic dataset for street light scheduling within the power supply area corresponding to the same energy storage cabinet is as follows: Based on the illuminance collection timestamp, the energy storage scheduling data is time-aligned according to a preset unified sampling period. According to the energy storage cabinet number, the street light numbers within the power supply area corresponding to the same energy storage cabinet are collected, and the traffic flow of the corresponding road segment is associated with the street light numbers within that segment. Range verification is performed on the energy storage state of charge (SOC), energy storage output power, street light operating power, and illuminance values ​​at street light monitoring points, eliminating data exceeding the equipment's range. For missing street light operating power, street light monitoring point illuminance values, and energy storage output power, linear interpolation is used to fill in the missing traffic flow and energy storage SOC values ​​for the corresponding road segment. The preprocessed energy storage scheduling data is then stored in association to form a basic dataset for street light scheduling within the power supply area corresponding to the same energy storage cabinet.

4. The smart street light scheduling method for centralized energy storage linkage according to claim 3, characterized in that, The specific process of identifying the lighting deviation of each street light based on the street light scheduling basic dataset and evaluating the light emission attenuation state of each street light is as follows: For each street light number, calculate the corresponding street light unit power illuminance value based on the illuminance value of the street light monitoring point and the street light operating power; read the street light unit power illuminance value of the corresponding street light number within the preset benchmark collection period after the street light installation time and closest to the street light installation time, and take the median to obtain the benchmark unit power illuminance value of the corresponding street light number; Construct a sliding time window, calculate the median of the unit power illuminance value of the street lamp within the current sliding time window, and obtain the current unit power illuminance value of the corresponding street lamp number; Calculate the street light illumination deviation value for the corresponding street light number based on the benchmark unit power illuminance value and the current unit power illuminance value; The number of sampling periods in the current sliding time window where the street light unit power illuminance value is less than the product of the benchmark unit power illuminance value and a preset attenuation ratio is counted, and then divided by the total number of sampling periods in the current sliding time window to obtain the attenuation duration value of the corresponding street light number. Calculate the time difference between the current illuminance collection timestamp and the street light installation time to obtain the street light's service life; By combining the attenuation duration value, the normalized cumulative lighting time of the streetlight, the normalized service life of the streetlight, and the streetlight lighting deviation value, the luminous attenuation status value of the streetlight is obtained.

5. The smart street light scheduling method for centralized energy storage linkage according to claim 4, characterized in that, The specific process of identifying streetlights with diminishing luminous capacity based on their luminous decay status and determining the illuminance gap of each streetlight is as follows: Read the luminous decay status value of all street lights corresponding to the same energy storage cabinet number. When the luminous decay status value is greater than the luminous decay status threshold, mark the corresponding street light number as a luminous decay street light; when the luminous decay status value is less than or equal to the luminous decay status threshold, mark the corresponding street light number as a normally luminous street light. For each street light, the illuminance value of the monitoring point of the street light is subtracted from the preset target illuminance value corresponding to the road segment number to which the street light belongs to obtain the illuminance gap value. When the illuminance gap value is greater than 0, the original illuminance gap value is retained, and when the illuminance gap value is less than or equal to 0, the illuminance gap value is set to 0. The energy storage cabinet number, street light number, street section number to which the street light belongs, attenuation duration value, street light luminous attenuation status value, luminous capacity attenuation street light mark, normal luminous street light mark, and illuminance gap value are associated and stored.

6. The smart street light scheduling method for centralized energy storage linkage according to claim 1, characterized in that, The specific process for verifying the power constraint of the differentiated power supply scheduling results is as follows: The power boundary of each street light after adjustment is checked, and the adjusted power of each street light is limited to the rated minimum power and rated maximum power of the corresponding street light. The adjusted power supply of each street light within the same power supply area corresponding to the same energy storage cabinet number is summed to obtain the total adjusted power supply. When the adjusted total power supply is greater than the energy storage output power, the adjusted power supply corresponding to each street light number is reduced sequentially from back to front according to the street light power supply priority sequence until the adjusted total power supply is less than or equal to the energy storage output power; when the adjusted total power supply is less than or equal to the energy storage output power, the current adjusted power supply allocation result is maintained.

7. The smart street light scheduling method for centralized energy storage linkage according to claim 6, characterized in that, The specific process of generating street light power supply scheduling instructions based on differentiated power supply scheduling results and receiving execution results to form energy storage differentiated power supply scheduling records is as follows: Based on the adjusted power supply corresponding to each street light number, a differentiated power supply scheduling instruction is generated and sent to the corresponding street light controller for execution. Receive the command execution results fed back by the corresponding street light controller. The command execution results include execution success and execution failure. When the command execution result is successful, the energy storage cabinet number, street light number, road section number to which the street light belongs, original street light operating power, adjusted power supply, energy storage power supply status and dispatch command generation time are associated and stored to form a differentiated energy storage power supply dispatch record. When the instruction execution result is failure, the corresponding street light number is marked as a street light with scheduling execution failure, and the original street light operating power of the corresponding street light is retained.

8. A smart street light dispatching system for centralized energy storage linkage, characterized in that, include: The scheduling data acquisition and processing module is used to acquire energy storage scheduling data in real time, preprocess the energy storage scheduling data, and build a basic dataset of street light scheduling in the power supply area corresponding to the same energy storage cabinet. The street light luminous capability identification module is used to identify the lighting deviation of each street light based on the street light scheduling basic dataset, evaluate the luminous decay status of each street light, identify the street light with luminous capability decay based on the luminous decay status, and determine the illuminance gap of each street light. The differentiated power supply scheduling module is used to generate a street light power supply priority sequence by combining the street light light decay status and illuminance gap, determine the energy storage status based on energy storage scheduling data, perform differentiated power supply scheduling by combining the street light power supply priority sequence and energy storage status, and perform power constraint verification on the differentiated power supply scheduling results. The scheduling record management module is used to generate street light power supply scheduling instructions based on differentiated power supply scheduling results, and to receive execution results to form energy storage differentiated power supply scheduling records. The specific process for generating the street light power supply priority sequence by combining the street light luminous decay state and illuminance gap is as follows: For each street light number within the power supply area corresponding to the same energy storage cabinet number, a priority sequence for street light power supply is generated according to the sorting rules. The sorting rules are as follows: street lights with diminishing luminous capacity are placed before street lights with normal luminous capacity; among street lights with the same marking, they are sorted from largest to smallest illuminance gap value; when the illuminance gap values ​​are the same, they are sorted from largest to smallest luminous capacity decay value; when the luminous capacity decay values ​​are the same, they are sorted from largest to smallest traffic flow of the road segment. When the traffic flow of the road segments is the same, the streetlights are sorted in ascending order according to their streetlight numbers. The specific process of determining the energy storage status based on energy storage scheduling data and performing differentiated energy supply scheduling in conjunction with the street light power supply priority sequence and energy storage status is as follows: The energy storage state of charge (SOC) is read in real time. When the SOC is greater than the energy storage dispatch threshold, the energy storage supply status is determined to be sufficient; when the SOC is less than or equal to the energy storage dispatch threshold, the energy storage supply status is determined to be energy-saving. The power supply of the streetlights is adjusted according to the energy storage supply status. When the energy storage supply is in a sufficient supply state, the first N streetlights in the streetlight power supply priority sequence with an illuminance gap value greater than 0 are identified as compensation targets, the power supply of the compensation targets is increased, and the current power supply of the remaining streetlights remains unchanged. When the energy storage supply is in the energy-saving supply state, the first M streetlights in the streetlight supply priority sequence are identified as the backup targets. The current power supply of the backup targets remains unchanged. For the remaining streetlights, the power supply of the corresponding streetlights is reduced in order from back to front according to the streetlight supply priority sequence.

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