A landscape lighting dynamic control method based on environmental perception data

Abstract

The present application relates to the technical field of lighting control, in particular to a landscape lighting dynamic control method based on environment perception data, the present application collects the reflected light radiation of the lighting object at the preset observation position, and compares the reflected light radiation with the reference radiation to obtain the reflected light radiation deviation rate; the surface optical state of the lighting object is identified according to the time series change trend of the deviation rate, and the intermediate state hosting mode is entered during the state transition; after completing the surface optical state switching, the corresponding projection adjustment parameter is obtained by searching the state-projection geometric relationship database; at the same time, hierarchical power compensation control is performed based on the brightness contribution proportion of the near, middle and far layers to generate device control instructions. The method can improve the adaptability of landscape lighting to environmental changes, enhance the visual level coordination and lighting stability.

Description

Technical Field

[0001] This invention relates to the field of lighting control technology, specifically to a dynamic control method for landscape lighting based on environmental perception data. Background Technology

[0002] As an important component of urban public spaces, landscape lighting differs from functional lighting such as streetlights. The control objectives of landscape lighting not only include meeting basic illuminance requirements, but also maintaining a structural balance of the overall visual effect under dynamic environmental conditions.

[0003] Currently, the field of landscape lighting control generally adopts either timed control based on a preset schedule or threshold-triggered control based on a single illuminance sensor. In the implementation of these control methods, a unified linear mapping relationship is established between environmental perception data and equipment output power, meaning that a uniform dimming control command is issued to all equipment within the landscape area.

[0004] However, landscape lighting scenarios contain various lighting objects with fundamentally different optical properties, such as water bodies, vegetation, building facades, and sculptural structures. When dynamic environmental conditions change, such as decreased atmospheric visibility, changes in ground moisture, or variations in the intensity of background light from the sky, these different types of lighting objects will produce optical responses in opposite directions or with significantly different magnitudes to the same environmental changes due to the differences in their respective surface optical properties. Existing uniform dimming control methods cannot identify and respond to these differentiated optical response requirements, leading to visual structural imbalances such as brightness imbalances and color banding between different lighting sub-areas when environmental conditions change dynamically.

[0005] Therefore, there is an urgent need in the existing technology for a method that can generate differentiated dynamic control strategies for landscape lighting objects with different optical characteristics based on environmental perception data, in order to solve the above-mentioned technical problems.

[0006] To address this, a dynamic control method for landscape lighting based on environmental perception data is proposed. Summary of the Invention

[0007] The purpose of this invention is to provide a dynamic control method for landscape lighting based on environmental perception data. By collecting the amount of reflected light radiation from the lighting object to identify the surface optical state, and combining state management, projection parameter adjustment and visual hierarchy brightness compensation, dynamic adaptive control of landscape lighting can be achieved.

[0008] To achieve the above objectives, the present invention provides the following technical solution: A dynamic control method for landscape lighting based on environmental perception data includes: The reflected light radiation of the illuminated object is collected at the preset observation position in each lighting zone, and the reflected light radiation deviation rate of each lighting zone is obtained based on the reflected light radiation and the pre-stored reference radiation. The optical state of the illuminated object's surface is determined based on the time-series change trend of the reflected light radiation deviation rate: when the reflected light radiation deviation rate changes continuously in the same direction, the lighting zone is determined to be in an intermediate state of state transition. The equipment parameters are adjusted to enter the intermediate state management mode and the reflected light radiation deviation rate is monitored. When the reflected light radiation deviation rate stably exceeds the deviation threshold, the surface optical state switch is determined to be completed. For lighting zones that have completed state switching, the state-projection geometry relationship database is retrieved based on the reflected light radiation deviation rate to obtain the device projection parameters corresponding to the current surface optical state. The projection relationship is then adjusted to obtain the projection adjustment parameters. Based on the viewing direction of the preset observation position, the system divides the field into near, middle and far layers. It reads the reflected light radiation after attenuation correction, calculates the actual brightness contribution ratio of each layer, analyzes the output power of the compensation device for layers that deviate from the preset target ratio, and generates equipment control commands by combining the projection adjustment parameters.

[0009] Preferably, the process of obtaining the reflected light radiation deviation rate includes: Narrow field-of-view photodetectors are deployed at preset observation positions along preset line-of-sight directions in each lighting zone. The center line of the field of view of the photodetector is aligned with the representative sampling position of the surface of the object being illuminated in the corresponding lighting zone. The reflected light radiation of each lighting zone is collected and, together with the output status of the corresponding device, constitutes a reference radiation entry and is stored in the reference database. The reflected light radiation is collected at representative sampling locations of the lighting objects in each lighting zone at a sampling period. The corresponding reference radiation entry is retrieved from the reference database based on the current equipment output status. The current reflected light radiation is compared with the reference radiation in the reference radiation entry to obtain the reflected light radiation deviation rate of each lighting zone.

[0010] Preferably, the process for determining the optical state of the illuminated object's surface includes: constructing a time series for the reflected light radiation deviation rate of each illumination zone according to a preset time window, and statistically analyzing the direction of change of the time series during consecutive sampling cycles within the time window; if the reflected light radiation deviation rate of each sampling cycle within the time window changes in the same direction, then the illumination zone is determined to be in an intermediate state of surface optical state transition and enters the intermediate state management mode; if the change amplitude of the reflected light radiation deviation rate in adjacent sampling cycles within the time window is lower than the stability determination threshold and the absolute value of the reflected light radiation deviation rate exceeds the deviation threshold, then the illumination zone is determined to have completed the surface optical state switch, exits the intermediate state management mode, and enters the projection adjustment parameter acquisition process; if the absolute value of the reflected light radiation deviation rate does not exceed the deviation threshold, then the illumination zone is determined to maintain the current surface optical state and keep the existing equipment control commands unchanged.

[0011] Preferably, the execution process of the intermediate state managed mode includes: when the lighting zone is determined to be in an intermediate state of transition, a managed control command is issued to the zone device, the managed control command including beam angle narrowing parameters, projection direction locking parameters, and power limiting parameters; the beam angle narrowing parameters adjust the device beam angle to the minimum value of the device's adjustable range; the projection direction locking parameters fix the projection direction to the pre-stored geometric center coordinates of the lighting object; the power limiting parameters reduce the device output power to a preset proportion of the zone device's rated power recorded during the calibration phase; During the continuous operation of the managed mode, the time series of reflected light radiation deviation rate of the partition is continuously read at a preset sampling period. When the change amplitude of reflected light radiation deviation rate of each adjacent sampling period within the time window is lower than the stability judgment threshold, it is determined that the optical state transition of the illuminated object surface is completed, the managed control command is released, and the partition is determined to have completed the surface optical state switch.

[0012] Preferably, the process of obtaining the projection adjustment parameters includes: establishing a state-projection geometry relationship database for various types of lighting objects in each lighting zone, using the lighting zone number and surface optical state type as indexes, and storing the corresponding target projection direction parameters and target beam angle parameters; storing two types of index entries for the water zone: specular optical state and diffuse optical state, where specular optical state entries correspond to narrow-beam projection parameters targeting the effective reflection area of ​​the water body, and diffuse optical state entries correspond to wide-beam projection parameters targeting the geometric center of the water body; and storing two types of index entries for the vegetation zone: dry optical state and wet optical state, where dry optical state entries correspond to oblique projection parameters penetrating the canopy, and wet optical state entries correspond to forward projection parameters illuminating the canopy surface. When the illumination zone completes the surface optical state switching, the database is retrieved using the zone number and the current surface optical state type as indexes to obtain the target projection direction parameters and target beam angle parameters, which are then combined into projection adjustment parameters.

[0013] Preferably, the process of obtaining the attenuation-corrected reflected light radiation includes: grouping the photodetectors of each lighting zone into target layers according to the line-of-sight direction of the preset observation position, corresponding to the near-field layer, mid-field layer, and far-field layer; based on the pre-stored geometric distance from each group of photodetectors to the representative sampling position of the corresponding lighting object, and the atmospheric transmittance obtained in real time, applying geometric distance attenuation correction and atmospheric transmittance correction to the reflected light radiation collected by each group simultaneously to obtain the attenuation-corrected reflected light radiation of each visual layer; analyzing the attenuation-corrected reflected light radiation of each visual layer to obtain the global corrected total radiation; and dividing the attenuation-corrected reflected light radiation of each layer by the global corrected total radiation to obtain the actual brightness contribution ratio of each layer.

[0014] Preferably, the process for determining the output power of the compensation device includes: comparing the actual brightness contribution ratio of each visual level with the corresponding preset target ratio to obtain the brightness contribution deviation value of each level; sorting each level from largest to smallest absolute value of the brightness contribution deviation value, and sequentially performing power adjustment on visual levels whose deviation values ​​exceed the level tolerance range: for levels where the actual brightness contribution ratio is lower than the preset target ratio, issuing a power increase command to the pre-marked level compensation device within the level; for levels where the actual brightness contribution ratio is higher than the preset target ratio, issuing a power decrease command to the level compensation device within the level; after each single-level power adjustment is executed, reading the reflected light radiation amount after attenuation correction for each level and updating the actual brightness contribution ratio of each level, and then performing power adjustment on the next level; after the power adjustment of each level is completed, merging the power adjustment results of the level compensation device with the projection adjustment parameters to generate a full-area device control command.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention achieves dynamic identification and precise perception of the optical state of the illuminated object's surface by real-time acquisition of reflected light radiation from a preset observation location and constructing a reflected light radiation deviation rate based on a reference radiation value. Compared to traditional methods that rely solely on ambient brightness or preset time strategies for control, this invention directly reflects the real visual changes in landscape objects such as water bodies and vegetation caused by variations in humidity, dryness, specular reflection, or diffuse reflection. This avoids the problems of brightness imbalance, glare, or blurred layers inherent in traditional landscape lighting, improving the environmental adaptability and visual stability of landscape lighting control.

[0016] 2. This invention establishes a surface optical state transition intermediate state recognition mechanism. When a continuous unidirectional change in the reflected light radiation deviation rate is detected, it automatically enters an intermediate state management mode and limits and controls the beam angle, projection direction, and equipment power. This effectively avoids beam jitter, brightness fluctuations, and equipment oscillations caused by frequent adjustments during surface state switching. Compared to the existing technology that directly switches control parameters, this invention can maintain lighting stability during the gradual change of the optical state of the landscape object, reduce the number of ineffective adjustments, improve equipment operational reliability, and simultaneously reduce energy waste and equipment wear.

[0017] 3. This invention, based on the visual hierarchy of near-field, mid-field, and far-field layers, attenuates and corrects the reflected light radiation at each layer, and implements layered compensation control in conjunction with the target brightness contribution ratio, achieving overall landscape brightness coordination oriented towards human visual perception. Compared with traditional single-area or single-device independent dimming methods, this invention comprehensively considers distance attenuation, atmospheric transmittance, and the visual proportion of each layer, enabling landscape lighting to form a more balanced and three-dimensional visual effect in spatial hierarchy, improving the quality of nighttime landscape appreciation, while also enhancing the efficiency of lighting resource utilization and regional collaborative control capabilities. Attached Figure Description

[0018] Figure 1 This invention provides a schematic flowchart of a dynamic control method for landscape lighting based on environmental perception data. Figure 2 This is a schematic diagram of the intermediate state managed mode logic flow provided by the present invention; Figure 3 A schematic diagram of the iterative adjustment logic flow of the compensation device output power provided by the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention.

[0020] This embodiment uses a landscape lighting scene in an urban park that includes water body lighting zones, vegetation lighting zones, and building facade lighting zones as an example for specific explanation. The landscape area is laid out along an artificial lake, with the three lighting zones focusing on the artificial lake surface (water body zone), the canopy of trees along the lake shore (vegetation zone), and the stone building facades along the lake shore (facade zone), respectively. Each zone's lighting fixtures are equipped with an electric focusing mechanism (for continuous beam angle adjustment) and an electric pan-tilt head (for projection direction adjustment). Narrow-field-of-view photodetectors with a field of view of 5° to 10° are deployed at preset observation positions in each lighting zone along the main observation channel's line of sight. The center line of each detector's field of view is aligned with a representative sampling position on the surface of the illuminated object in the corresponding lighting zone. The representative sampling positions are determined during the system debugging phase based on typical visual effect observation points for each zone's illuminated object: the representative sampling position for the water body zone is selected from the center point of the area covered by the main observation channel's mirror reflection on the water surface; the representative sampling position for the vegetation zone is selected from the middle of the outer edge of the tree canopy; and the representative sampling position for the facade zone is selected from the middle section of the building facade. The geometric distance from each group of detectors to the representative sampling position of the corresponding illumination object is obtained during the system installation phase by measuring the detector installation coordinates and the coordinates of the corresponding representative sampling position and calculating the distance between the two points. This distance serves as a fixed reference parameter for subsequent attenuation correction.

[0021] Example 1: Please see Figure 1This invention provides a dynamic control method for landscape lighting based on environmental perception data. The technical solution is as follows: The reflected light radiation of the illuminated object is collected at a preset observation position in each lighting zone. The reflected light radiation deviation rate of each lighting zone is obtained based on the reflected light radiation and a pre-stored reference radiation. The optical state of the illuminated object surface is determined according to the time series change trend of the reflected light radiation deviation rate: when the reflected light radiation deviation rate changes continuously in the same direction, the lighting zone is determined to be in a state transition intermediate state. The equipment parameters are adjusted to enter the intermediate state management mode, and the reflected light radiation deviation rate is monitored. When the reflected light radiation deviation rate stably exceeds the deviation threshold, the surface optical state switch is determined to be complete. For the lighting zone that has completed the state switch, the state-projection geometry relationship database is retrieved based on the reflected light radiation deviation rate to obtain the equipment projection parameters corresponding to the current surface optical state. The projection relationship is adjusted to obtain the projection adjustment parameters. The near-field layer, mid-field layer, and far-field layer are divided based on the viewing direction of the preset observation position. The reflected light radiation after attenuation correction is read, the actual brightness contribution ratio of each layer is calculated, and the output power of the equipment is adjusted to compensate for the deviation from the preset target ratio. The equipment control command is generated in combination with the projection adjustment parameters.

[0022] Furthermore, the process of obtaining the reflected light radiation deviation rate includes: Narrow field-of-view photodetectors are deployed at preset observation positions along preset line-of-sight directions in each lighting zone. The center line of the field of view of the photodetector is aligned with the representative sampling position of the surface of the object being illuminated in the corresponding lighting zone. The reflected light radiation of each lighting zone is collected and, together with the output status of the corresponding device, constitutes a reference radiation entry and is stored in the reference database. The reflected light radiation is collected at representative sampling locations of the lighting objects in each lighting zone at a sampling period. The corresponding reference radiation entry is retrieved from the reference database based on the current equipment output status. The current reflected light radiation is compared with the reference radiation in the reference radiation entry to obtain the reflected light radiation deviation rate of each lighting zone.

[0023] Specifically, under standard environmental conditions—namely, sunny skies, wind speeds below 1 m / s, and dry facades—the rated operating power of each zone's lighting fixtures is used as the standard output condition. The lighting fixtures in each zone are operated, and the reflected light radiation is collected from the photodetectors in each zone. This radiation amount, along with the corresponding lighting fixture output power level, forms a reference radiation entry, which is then stored in a reference database. The reference database is stored using both the lighting zone number and the lighting fixture output power level as dual indexes, ensuring accurate retrieval of the corresponding reference value under different lighting fixture output power conditions during subsequent operation phases.

[0024] During the operation phase, the reflected light radiation at representative sampling locations of the illuminated objects in each lighting zone is continuously collected at a sampling period of 30 seconds. Based on the current output state of the luminaire, the corresponding reference radiation entry in the reference database is retrieved. The difference between the current reflected light radiation and the reference radiation is divided by the reference radiation to obtain the reflected light radiation deviation rate for each lighting zone. A positive value indicates that the current reflected radiation is stronger than the reference state, while a negative value indicates that it is weaker than the reference state. The reflected light radiation deviation rate serves as the input for judging the surface optical state, characterizing the degree of deviation of the surface optical state of the illuminated object relative to the reference state.

[0025] Furthermore, the process of determining the optical state of the illuminated object's surface includes: constructing a time series for the reflected light radiation deviation rate of each illumination zone according to a preset time window, and statistically analyzing the direction of change of the time series during consecutive sampling cycles within the time window; if the reflected light radiation deviation rate of each sampling cycle within the time window changes in the same direction, then the illumination zone is determined to be in an intermediate state of surface optical state transition and enters the intermediate state management mode; if the change amplitude of the reflected light radiation deviation rate in adjacent sampling cycles within the time window is lower than the stability determination threshold and the absolute value of the reflected light radiation deviation rate exceeds the deviation threshold, then the illumination zone is determined to have completed the surface optical state switch, exits the intermediate state management mode, and enters the projection adjustment parameter acquisition process; if the absolute value of the reflected light radiation deviation rate does not exceed the deviation threshold, then the illumination zone is determined to maintain the current surface optical state and keep the existing equipment control commands unchanged.

[0026] Specifically, the control system constructs a time series of the reflected light radiation deviation rate of each lighting zone using 5 consecutive sampling periods (a total of 150 seconds), and performs the following three types of judgments on the time series: First, if the reflected light radiation deviation rate of each adjacent sampling period within the time window changes in the same direction (either all increasing or all decreasing), then the object being illuminated in the lighting zone is determined to be in the intermediate state of surface optical state transition and enters the intermediate state management mode. Secondly, if the variation amplitude of the reflected light radiation deviation rate of adjacent sampling periods within the time window is lower than the stability judgment threshold, and the absolute value of the reflected light radiation deviation rate exceeds the deviation threshold, then it is determined that the lighting zone has completed the surface optical state switching, exits the intermediate state hosting mode, and enters the projection adjustment parameter acquisition process. Third, if the absolute value of the reflected light radiation deviation rate does not exceed the deviation threshold, it is determined that the lighting zone will maintain the current surface optical state and the existing luminaire control commands will remain unchanged.

[0027] The process for determining the deviation threshold is as follows: Taking the water body zone as an example, during the calibration period, detector readings for no less than 10 sampling cycles are stably collected under both specular optical conditions (sunny water surface with wind speed below 1m / s) and diffuse optical conditions (simulating diffuse conditions by agitating the water surface). 50% of the absolute value difference of the reflected light radiation deviation rate under the two typical stable conditions is taken as the initial setting value of the deviation threshold for the water body zone. The vegetation zone performs the same comparative experiment under dry canopy conditions and artificially moistened canopy conditions, and the facade zone performs the same experiment under dry facade conditions and artificially moistened facade conditions. The deviation threshold for each zone is stored in the system configuration database after being confirmed by the on-site engineer.

[0028] The process for determining the stability threshold is as follows: During the calibration phase, the lighting objects in each zone are continuously run under typical stable conditions for no less than 30 minutes. The changes in the reflected light radiation deviation rate during all adjacent sampling periods are recorded, and twice the maximum value among all recorded changes is taken as the stability threshold. The basis for selecting twice is to ensure that the threshold is higher than the maximum fluctuation during normal stable operation, while being lower than the minimum change in a single cycle during the state transition. Taking the water zone in this embodiment as an example: Under stable mirror state, the maximum measured value of the deviation rate change in adjacent sampling periods within 30 minutes is 0.8%; when rainfall triggers the water surface to transition to diffuse state, the minimum measured value of the deviation rate change in a single sampling period is 3.2%, which is approximately 4 times the maximum fluctuation during the stable period. The stability threshold of twice satisfies both conditions of being higher than the maximum fluctuation during the stable period and lower than the minimum single-cycle change during the state transition. If individual zones in actual engineering cannot meet this condition, supplementary calibration can be performed separately for that zone, with the zone-specific multiple factor overriding the default value. Each zone completes the above statistical calibration, and the results are stored in the system configuration database.

[0029] Furthermore, the execution process of the intermediate managed mode refers to Figure 2 This includes: when a lighting zone is determined to be in a state transition intermediate state, issuing a managed control command to the zone device, the managed control command including beam angle narrowing parameters, projection direction locking parameters, and power limiting parameters; the beam angle narrowing parameters adjust the device beam angle to the minimum value of the device's adjustable range; the projection direction locking parameters fix the projection direction to the pre-stored geometric center coordinates of the lighting object; the power limiting parameters reduce the device output power to a preset proportion of the zone device's rated power recorded during the calibration phase; During the continuous operation of the managed mode, the time series of reflected light radiation deviation rate of the partition is continuously read at a preset sampling period. When the change amplitude of reflected light radiation deviation rate of each adjacent sampling period within the time window is lower than the stability judgment threshold, it is determined that the optical state transition of the illuminated object surface is completed, the managed control command is released, and the partition is determined to have completed the surface optical state switch.

[0030] Specifically, when a lighting zone is determined to be in a state transition intermediate state, the control system immediately issues a managed control command to the lights in that zone. The managed control command includes the following three types of parameters: The beam angle narrowing parameter adjusts the beam angle of the luminaire to the minimum value of the adjustable range of the luminaire's electric focusing mechanism. This minimum value is determined by the minimum beam angle of the optical system recorded in the luminaire's manufacturer's specifications and is executed by the luminaire's built-in electric focusing mechanism. The projection direction locking parameter fixes the projection direction of the luminaire in this zone to the geometric center coordinates of the lighting object pre-stored during the calibration phase, and does not respond to the angle adjustment command of Innovation Point 2 during the continuous hosting mode. The power limiting parameter reduces the output power of the luminaire to the output level corresponding to the preset ratio of the luminaire power limit for that zone, as determined during the calibration phase.

[0031] The power limit preset ratio is obtained as follows: During the system debugging phase, managed tests are run one by one at 40%, 50%, 60%, and 70% of the rated power of the luminaires in each zone; during the test, the luminaires in adjacent zones maintain their standard operating state during the calibration phase (i.e., standard beam angle and projection direction at rated power), simulating the most typical light interference scenario between adjacent zones in actual operation; the managed tests are performed under at least two typical environmental conditions, namely, under standard clear conditions and under conditions where atmospheric visibility is reduced to 60% of the calibration visibility, the higher of the two safe power ratios is taken. The smallest value is used as the final preset ratio. If none of the levels corresponding to a 10% step size can meet the conditions, additional tests are conducted in the corresponding interval with a step size of 5%. If the lowest level of 40% still does not meet the conditions, the test is further reduced to 30% and repeated until a safe level is determined. The deviation rate time series of the photodetectors in adjacent zones are read simultaneously, and the maximum power ratio that does not cause the deviation rate of any adjacent zone to change in the same direction within 5 consecutive sampling periods is taken as the preset power limit ratio for that zone. This ensures that the impact of the lamp's light output on adjacent zones under managed conditions is within the acceptable range of the system status judgment. The preset power limit ratios for each zone are stored in the system configuration database after being confirmed by the engineer.

[0032] During the continuous operation of the managed mode, the control system continuously reads the time series of reflected light radiation deviation rate of the partition at a sampling period of 30 seconds. When the change amplitude of reflected light radiation deviation rate of each adjacent sampling period within 5 consecutive sampling periods (150-second time window) is lower than the stability judgment threshold, it is determined that the optical state of the illuminated object surface has completed the transition, the managed control command is released, and the partition enters the projection adjustment parameter acquisition process.

[0033] Taking the scenario of rainfall initiation as an example, the complete execution process of this step is illustrated as follows: After rainfall begins, the water zoning detector detects a continuous unidirectional decrease in the reflected light radiation deviation rate over five consecutive sampling cycles (the water surface transitions from a specular state to a diffuse state). The control system determines that the water zoning has entered an intermediate state and immediately issues a management command. The beam angle of the water lights narrows to its minimum value, the projection direction is fixed to the geometric center coordinates of the water surface, and the output power is reduced to the level corresponding to the preset ratio. During the management period, the light energy of the water lights is concentrated on the geometric center of the water surface, reducing the interference of multi-directional stray reflections from the mixed optical state of the water surface on the overall landscape visuals. Once the water zoning detector detects that the deviation rate has changed less than the stability judgment threshold over five consecutive sampling cycles, the system determines that the diffuse state of the water surface has been stably established, releases the management command, and determines that the water zoning has completed the surface optical state switch, entering the projection adjustment parameter acquisition process.

[0034] Furthermore, the process of obtaining the projection adjustment parameters includes: establishing a state-projection geometry relationship database for various types of lighting objects in each lighting zone, using the lighting zone number and surface optical state type as indexes, and storing the corresponding target projection direction parameters and target beam angle parameters; storing two types of index entries for the water zone: specular optical state and diffuse optical state, with specular optical state entries corresponding to narrow-beam projection parameters targeting the effective reflection area of ​​the water body, and diffuse optical state entries corresponding to wide-beam projection parameters targeting the geometric center of the water body; storing two types of index entries for the vegetation zone: dry optical state and wet optical state, with dry optical state entries corresponding to oblique projection parameters penetrating the canopy, and wet optical state entries corresponding to forward projection parameters illuminating the canopy surface; When the illumination zone completes the surface optical state switching, the database is retrieved using the zone number and the current surface optical state type as indexes to obtain the target projection direction parameters and target beam angle parameters, which are then combined into projection adjustment parameters.

[0035] Specifically, during the system deployment phase, the lighting parameters are calibrated on-site under various conditions in each zone, and a state-projection geometry relationship database is established. The database stores the corresponding target projection direction parameters and target beam angle parameters using the lighting zone number and surface optical state type as dual indexes.

[0036] The water body is divided into two categories of index entries: specular optical state and diffuse optical state. The specular optical state entries store the narrow beam parameters with the effective specular reflection area of ​​the water body as the projection target. The projection direction of the luminaire is calculated and recorded according to the geometric relationship of specular reflection based on the coordinates of the main observation position and the installation coordinates of the luminaire during the calibration stage. The diffuse optical state entries store the wide beam parameters with the geometric center of the water body as the projection target. The projection direction of the luminaire is positively pointed towards the geometric center of the water surface.

[0037] The vegetation zones store two types of index entries: dry optical state and wet optical state. The dry optical state entries store the projection parameters that penetrate the canopy at an angle, in which the lamps illuminate the canopy at a certain angle relative to the normal of the canopy surface, using the transmission characteristics of the leaves to illuminate the interior of the canopy. This angle is determined through field lighting effect evaluation during the calibration phase. The wet optical state entries store the projection parameters that illuminate the canopy surface directly, in which the projection direction of the lamps is adjusted to be close to the normal direction of the canopy surface, using the specular reflection component enhanced by the water film on the leaf surface to improve the visible brightness of the outer surface of the canopy.

[0038] The facade is divided into two categories of index entries: dry optical state and wet optical state. The dry optical state entries store diffusion projection parameters based on uniform diffuse reflection. The wet optical state entries store angle parameters that utilize the enhanced specular reflection component of the facade after it is wet. During the calibration phase, the projection angle of the lighting fixtures is adjusted to make the specular reflection direction of the facade close to the main line of sight. The parameters are entered into the database after being confirmed by on-site visual evaluation.

[0039] The parameter values ​​of each entry in the above database were entered after confirmation and evaluation of the actual lighting effect during the system debugging phase, forming a pre-set dataset that can be directly indexed and called during the system operation phase.

[0040] When a lighting zone completes its surface optical state switch, the state-projection geometry relationship database is retrieved using the zone number and the current surface optical state type as indexes. The target projection direction parameters and target beam angle parameters are then obtained and merged into projection adjustment parameters, which are output to the luminaire control command generation stage. Luminaire projection direction adjustment is performed via an electric pan-tilt unit, and luminaire beam angle adjustment is performed via an electric focusing mechanism. The adjustment rates of both mechanisms are set during system debugging with reference to a visual change rate that does not cause noticeable changes in parameters to the observer, and are stored in the system configuration database.

[0041] Furthermore, the process of obtaining the attenuation-corrected reflected light radiation includes: grouping the photodetectors of each lighting zone into target layers according to the line-of-sight direction of the preset observation position, corresponding to the near-field layer, mid-field layer, and far-field layer; based on the pre-stored geometric distance from each group of photodetectors to the representative sampling position of the corresponding lighting object, and the atmospheric transmittance obtained in real time, applying geometric distance attenuation correction and atmospheric transmittance correction to the reflected light radiation collected by each group simultaneously to obtain the attenuation-corrected reflected light radiation of each visual layer; analyzing the attenuation-corrected reflected light radiation of each visual layer to obtain the total global correction radiation; and dividing the attenuation-corrected reflected light radiation of each layer by the total global correction radiation to obtain the actual brightness contribution ratio of each layer.

[0042] Specifically, the photoelectric detectors in each lighting zone are grouped according to their visual hierarchy along the line of sight from the preset observation position. These groups correspond to the near-field layer (lighting objects within 15 meters of the preset observation position, corresponding to the waterfront edge and near-water surface), the mid-field layer (lighting objects within 15 to 50 meters, corresponding to the main body of the water and vegetation canopy), and the far-field layer (lighting objects beyond 50 meters, corresponding to building facades and distant structures). The distance boundaries between the near-field, mid-field, and far-field layers are determined by the landscape lighting designer based on the actual depth of the site during the system planning phase and stored in the system configuration database. During the system debugging phase, the level-compensation luminaires for each layer are marked one by one in the luminaire database according to the visual hierarchy of the projected target, the effective illumination distance, and the beam angle. Luminaires capable of providing effective power compensation for the corresponding level of lighting objects are marked as level-compensation luminaires for that layer, and the marking results are stored in the luminaire database.

[0043] The reflected light radiation collected by each group of photodetectors is simultaneously corrected for geometric distance attenuation and atmospheric transmittance. Geometric distance attenuation follows an inverse relationship with increasing distance, and the original collected values ​​are normalized to eliminate differences in the original collected dimensions caused by the detector installation distance. Atmospheric transmittance correction is based on the pre-stored geometric distance, taking into account the varying dimensions of light radiation as it propagates. The atmospheric transmittance correction is based on the real-time atmospheric visibility values ​​output by visibility meters deployed within the landscape area, calculating the atmospheric transmittance correction coefficients for representative propagation distances at each level, according to the principle that atmospheric attenuation of light propagation accumulates with increasing propagation distance. The visibility meters are deployed at the entrance of the landscape area in the prevailing wind direction, with the installation height consistent with the line-of-sight height of the preset observation position, ensuring that the detection data represents the atmospheric conditions along the main line-of-sight direction. The method for generating the visibility-transmittance comparison table is as follows: During the system debugging phase, reference photometers are deployed at the near-field boundary using different natural visibility weather conditions. The readings of the visibility meter and the light intensity values ​​after attenuation along a 15m path measured by the reference photometers are recorded simultaneously. The corresponding atmospheric extinction coefficient is calculated according to the atmospheric extinction law, and then extrapolated to representative distances in the mid-field and far-field layers to calculate the corresponding atmospheric transmittance correction coefficients, forming a discrete comparison table with visibility as input and three-layer correction coefficients as output. During system operation, piecewise linear interpolation is used to obtain the corresponding correction coefficients for visibility values ​​not directly included in the table. When the visibility value is much greater than the propagation distance of the corresponding layer, the atmospheric transmittance correction coefficient for that layer approaches 1, and can be considered negligible due to atmospheric attenuation. When the visibility value is close to or less than the propagation distance of the corresponding layer, the atmospheric attenuation effect is significant, and the correction coefficient is significantly lower than 1. The original reflected light radiation collected at the corresponding layer must be compensated for by a large amount of atmospheric attenuation before it can be compared with the collected values ​​of other layers. The aforementioned atmospheric transmittance correction coefficient is obtained by the control system from the visibility-transmittance comparison table established during the system calibration phase based on the real-time visibility values. This comparison table is generated during the system debugging phase by on-site measurement and calibration of the propagation distance at each level under different visibility conditions and stored in the system configuration database.

[0044] The total global correction radiation is obtained by summing the reflected light radiation after geometric distance and atmospheric transmittance correction at each visual level. The actual brightness contribution ratio of each level is obtained by dividing the reflected light radiation after attenuation correction at each level by the total global correction radiation. The actual brightness contribution ratio is used as the input for comparison with the preset target ratio.

[0045] Furthermore, the process for determining the output power of the compensation device refers to... Figure 3The process includes: comparing the actual brightness contribution ratio of each visual level with the corresponding preset target ratio to obtain the brightness contribution deviation value of each level; sorting each level according to the absolute value of the brightness contribution deviation value from large to small, and performing power adjustment on visual levels whose deviation value exceeds the level tolerance range in sequence: for levels whose actual brightness contribution ratio is lower than the preset target ratio, issuing a power increase command to the pre-marked level compensation device within the level; for levels whose actual brightness contribution ratio is higher than the preset target ratio, issuing a power decrease command to the level compensation device within the level; after each single-level power adjustment is executed, reading the reflected light radiation amount after attenuation correction for each level and updating the actual brightness contribution ratio of each level, and then performing power adjustment on the next level; after the power adjustment of each level is completed, merging the power adjustment results of the level compensation device with the projection adjustment parameters to generate a full-area equipment control command.

[0046] Specifically, during the system planning phase, the landscape lighting designer pre-sets the target brightness contribution ratio for each visual level and stores it in the system configuration database. In this embodiment, the designer sets the target ratio for the near-field level to 35%, the target ratio for the mid-field level to 45%, and the target ratio for the far-field level to 20%, with the sum of the target ratios for the three levels being 100%.

[0047] Determination of Layer Tolerance Range: The layer tolerance range represents the upper limit of the allowable deviation between the actual brightness contribution ratio and the target ratio. Within this range, the layer brightness is considered balanced, and no compensation adjustment is triggered. This tolerance range is determined during the system debugging phase through on-site visual evaluation: at least three evaluators evaluate the overall landscape visual effect at each visual layer with different deviation amounts (±5%, 10%, and 15% of the target ratio). The largest deviation amount that the evaluators generally consider not to significantly affect the visual effect is taken as the tolerance range for the corresponding layer. In this embodiment, the tolerance range for the near and mid-ground layers is set to ±10% of the target ratio, and the tolerance range for the far-ground layer is set to ±15% of the target ratio. The slightly wider tolerance range for the far-ground layer is based on the fact that the illuminated objects in the far-ground layer are farther from the observation position, and the impact of unit power change on the observer's perceived brightness is smaller than that in the near-ground layer. Evaluators are less sensitive to deviations in the far-ground layer than in the near and mid-ground layers. The above settings are stored in the system configuration database after being confirmed by the evaluators.

[0048] The actual brightness contribution ratio of each level is compared with the corresponding preset target ratio to obtain the brightness contribution deviation value of each level. The levels are sorted from largest to smallest absolute value of the brightness contribution deviation value. Power adjustment is performed on visual levels whose deviation value exceeds the level tolerance range in sequence: for levels whose actual brightness contribution ratio is lower than the preset target ratio, a power increase command is issued to the level compensation lamps in that level; for levels whose actual brightness contribution ratio is higher than the preset target ratio, a power decrease command is issued to the level compensation lamps in that level. After each single-level power adjustment is executed, the reflected light radiation amount after attenuation correction of each level is reread and the actual brightness contribution ratio of each level is updated to verify whether the adjustment has converged the corresponding level deviation to the tolerance range. After confirming convergence, the power adjustment is performed on the next priority level to avoid inter-level power adjustment coupling interference caused by cross-irradiation of overflow light from adjacent level lamps.

[0049] If, after a power adjustment at a certain level, the brightness contribution deviation of any level that has been completed and confirmed to have converged exceeds its tolerance range again, the iteration is paused, all level lights that have completed the adjustment are restored to their power state before the start of this iteration, and a proportional power adjustment is simultaneously performed on all levels that still exceed the tolerance range. The updated actual brightness contribution ratio of each level is then read. If convergence across all levels is still not achieved, the current actual ratio is used as the minimum deviation scheme for output, and a "target ratio not reached" event is recorded in the system. The maximum number of iterations in the entire process is set to 3. If the maximum number of iterations is exceeded, the process automatically exits and generates control commands with the current parameters.

[0050] After the power adjustment of each level is completed, the power adjustment results of the level compensation lamps are combined with the projection adjustment parameters to generate a full-area lamp control command and issue it for execution.

[0051] Example 2: Based on the aforementioned dynamic control method for landscape lighting, this embodiment further elaborates on the steps for coordinated adjustment of luminaire color temperature parameters and the optical state of the illuminated object surface, as well as the steps for systematic drift monitoring and adaptive updating of reference radiation.

[0052] Example 1 defines the complete control flow of this method: The reflected light radiation of the illuminated object is collected at preset observation positions in each lighting zone, and compared with the pre-stored reference radiation to obtain the reflected light radiation deviation rate; the optical state of the illuminated object's surface is judged based on the time series change trend of the deviation rate, distinguishing between two judgment results: intermediate state during state transition and state transition completion; for lighting zones that have completed state transition, the state-projection geometry relationship database is searched to obtain projection adjustment parameters; visual layers are divided into near-field, mid-field, and far-field layers, and the actual brightness contribution ratio of each layer is calculated; the output power of the compensation device is adjusted for layers that deviate from the target ratio, and the power adjustment results are combined with the projection adjustment parameters to generate a control command for the entire area's lighting fixtures; the calibration stage of the reflected light radiation deviation rate establishes a two-stage acquisition process of establishing a reference radiation entry and continuous comparison during the operation stage; based on the deviation within the time window... The three-branch surface optical state judgment process based on the consistency of the rate change direction includes three judgment branches: intermediate state, switching completion, and state maintenance. The stability judgment threshold is determined during the system debugging phase when the optical state of the illuminated object's surface is known to be stable. It is determined by recording the adjacent period changes of the deviation rate over multiple consecutive sampling periods, taking the maximum value, and storing it in the system parameters. The process includes: joint control commands for the intermediate state managed mode and managed release conditions based on the stability judgment threshold; a state-projection geometry relationship database with a dual-index structure of partition number and surface optical state type, and the retrieval and output process of target parameters for each index entry; a process of simultaneously applying geometric distance attenuation correction and atmospheric transmittance correction to the reflected light radiation at each visual level; and a power adjustment process that sorts by the absolute value of the deviation value, executes layer by layer, and updates the ratio in real time. The specific implementation details above have been described in Example 1 and will not be repeated in this example.

[0053] The state-projection geometry database also stores the target color temperature parameters corresponding to each state, indexed by the lighting zone number and the surface optical state type. When the lighting zone completes the surface optical state switch, the target color temperature parameters are retrieved simultaneously with the target projection direction parameters and target beam angle parameters. The target color temperature parameters, target projection direction parameters, and target beam angle parameters are merged into the luminaire's comprehensive adjustment parameters and synchronously output to the luminaire control command generation stage. Based on the target color temperature parameters, the luminaire switches the current output color temperature to the target color temperature by adjusting the driving current ratio of each color temperature channel in the multi-channel light-emitting unit, so that the luminaire's color temperature is aligned with the optimal illumination spectrum characteristics of the illuminated object under the current surface optical state. The target color temperature parameters are determined and entered into the database during the system debugging phase based on the evaluation of the actual lighting effect under each zone and state condition.

[0054] Specifically, based on the process of obtaining projection adjustment parameters, the state-projection geometry relationship database in this embodiment also uses the illumination zone number and surface optical state type as indexes, and adds a field for storing target color temperature parameters to each index entry, which together with the target projection direction parameters and the target beam angle parameters constitute the complete parameter group of each entry.

[0055] The target color temperature parameter is determined during the system commissioning phase: Under the actual occurrence of various surface optical conditions in each lighting zone, the lighting effect is evaluated on-site at preset observation positions. The driving current ratio of each color temperature channel in the multi-channel light-emitting unit of the luminaire is gradually adjusted, and the visual color presentation of the illuminated object is observed until the lighting spectral characteristics and the surface spectral reflectance distribution under the current surface optical condition of the illuminated object achieve a relatively optimal spectral reflectance match. The corresponding color temperature value at this point is recorded as the target color temperature parameter for that zone and that condition and entered into the database. The above evaluation is performed under standard luminaire output conditions to ensure that the target color temperature parameter is consistent with the control conditions during the operation phase.

[0056] During system operation, when a lighting zone completes its surface optical state switching, the control system uses the zone number and the current surface optical state type as indexes to search the database. While obtaining the target projection direction parameters and target beam angle parameters, it also retrieves the target color temperature parameters. These three parameters are combined into a comprehensive luminaire adjustment parameter, which is then synchronously output to the luminaire control command generation stage. Based on the target color temperature parameters, the luminaire adjusts the drive current ratio of each color temperature channel in the multi-channel light-emitting unit to switch the current output color temperature to the target color temperature. The mapping relationship between the color temperature channel drive current ratio and the output color temperature is determined by the luminaire's factory calibration data. The control system queries this calibration data to obtain the target current ratio and generates drive commands, aligning the luminaire's color temperature with the optimal illumination spectral characteristics of the illuminated object's current surface optical state.

[0057] Furthermore, the systematic drift monitoring steps for reference radiation quantities in the reference database are as follows: During the stable operation period in which each lighting zone continuously meets the conditions for maintaining the current surface optical state, the reflected light radiation amount of each sampling cycle is compared with the reference radiation amount of the corresponding reference radiation entry in the reference database, and the average value of the reflected light radiation deviation rate of all sampling cycles during the stable operation period is calculated. When the mean value continuously deviates in the same direction for no less than three consecutive stable operating periods and the absolute value exceeds the drift judgment threshold, it is determined that the reference radiation quantity has a systematic drift. The drift judgment threshold is determined during the system debugging phase by statistical analysis of the natural fluctuation of the output luminous flux of the lamp during stable operation under standard environmental conditions. The drift judgment threshold is taken as 1.5 times the maximum value of the fluctuation, so as to distinguish between normal output fluctuation and systematic unidirectional drift caused by physical factors such as lamp light decay.

[0058] Specifically, based on the process of obtaining the reflected light radiation deviation rate, this embodiment adds a step to monitor the systematic drift of the reference radiation quantity in the reference database. The period during which each illumination zone continuously meets the conditions for maintaining the current surface optical state is considered a stable operating period.

[0059] During the stable operation of each lighting zone, the control system calculates the average deviation rate of reflected light radiation from all sampling periods within that period to obtain the average deviation rate for that stable period. When the average deviation rate continuously deviates in the same direction for at least three consecutive stable operation periods and the absolute value exceeds the drift judgment threshold, it is determined that there is a systematic drift in the reference radiation quantity.

[0060] The drift judgment threshold is determined during the system debugging phase through the following process: Under standard environmental conditions, the reflected light radiation deviation rate is recorded for multiple consecutive sampling periods during stable operation of the luminaire. The maximum value of the fluctuation of the deviation rate between adjacent periods within this period is calculated, and this maximum value is multiplied by a preset margin coefficient as the drift judgment threshold and stored in the system parameters. The preset margin coefficient is set to a value greater than one, so that the drift judgment threshold is higher than the maximum natural output fluctuation during normal stable operation, preventing normal output fluctuations from triggering false drift judgments. The judgment condition is that the threshold is exceeded for no less than three consecutive stable periods in a consistent direction. This utilizes the physical characteristic of unidirectional cumulative light decay of the luminaire to distinguish it from random measurement fluctuations with uncertain direction.

[0061] Furthermore, when a systematic drift is detected in the reference radiance, during the next stable operation period that continuously meets the conditions for maintaining the current surface optical state, the average value of the reflected light radiance in each sampling period during this period is used as the updated reference radiance, replacing the reference radiance in the corresponding reference radiance entry in the reference database, thus completing the adaptive update of the reference radiance. The update operation is only performed when the deviation rate change of each adjacent sampling period within the time window is lower than the stability judgment threshold during the current stable operation of the lighting zone, to ensure that the data used for the update does not contain deviations introduced by changes in the surface optical state of the illuminated object. After the update is completed, the control system recalculates the reflected light radiance deviation rate of the current sampling period with the new reference radiance as a reference, and outputs the corrected deviation rate for subsequent surface optical state judgment.

[0062] Specifically, based on the determination of systematic drift, when a systematic drift is determined to exist in the reference radiation quantity, the control system performs an adaptive update of the reference radiation quantity during the next stable operation period.

[0063] Before the update operation is executed, the control system verifies that the change in the deviation rate of each adjacent sampling period during the current stable operation is lower than the stability judgment threshold described in Example 1, so as to ensure that the sampling data used for the update does not contain the deviation introduced by the change in the optical state of the surface of the illuminated object.

[0064] Once the above conditions are met, the control system uses the average value of reflected light radiation in each sampling period during the stable operation period as the updated reference radiation value, replacing the original reference radiation value of the corresponding reference radiation entry in the reference database, thus completing the adaptive update of the reference radiation value. After the update is completed, the control system recalculates the reflected light radiation deviation rate of the current sampling period with the new reference radiation value as a reference, and outputs the corrected deviation rate to the surface optical state judgment step to ensure that the reflected light radiation deviation rate accurately represents the true shift of the surface optical state of the illuminated object throughout the entire service life of the luminaire.

[0065] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A dynamic control method for landscape lighting based on environmental perception data, characterized in that, include: The reflected light radiation of the illuminated object is collected at the preset observation position in each lighting zone, and the reflected light radiation deviation rate of each lighting zone is obtained based on the reflected light radiation and the pre-stored reference radiation. The process of obtaining the reflected light radiation deviation rate includes: Narrow field-of-view photodetectors are deployed at preset observation positions along preset line-of-sight directions in each lighting zone. The center line of the field of view of the photodetector is aligned with the representative sampling position of the surface of the object being illuminated in the corresponding lighting zone. The reflected light radiation of each lighting zone is collected and, together with the output status of the corresponding device, constitutes a reference radiation entry and is stored in the reference database. The reflected light radiation of representative sampling positions of the lighting objects in each lighting zone is collected at the sampling period. The corresponding reference radiation entry in the reference database is retrieved according to the current equipment output status. The current reflected light radiation is compared with the reference radiation in the reference radiation entry to obtain the reflected light radiation deviation rate of each lighting zone. The optical state of the illuminated object's surface is determined based on the time-series change trend of the reflected light radiation deviation rate: when the reflected light radiation deviation rate changes continuously in the same direction, the illuminated zone is determined to be in a state transition intermediate state, the equipment parameters are adjusted, and the intermediate state management mode is entered to monitor the reflected light radiation deviation rate; when the reflected light radiation deviation rate stably exceeds the deviation threshold, the surface optical state switching is determined to be complete. The process of determining the surface optical state of the illuminated object includes: constructing a time series of the reflected light radiation deviation rate of each illuminated zone according to a preset time window, and statistically analyzing the change direction of the time series during consecutive sampling weeks within the time window; if the reflected light radiation deviation rate of each sampling period within the time window changes in the same direction, the illuminated zone is determined to be in a surface optical state transition intermediate state and enters the intermediate state management mode; if the change amplitude of the reflected light radiation deviation rate in adjacent sampling periods within the time window is lower than the stability determination threshold and the absolute value of the reflected light radiation deviation rate exceeds the deviation threshold, the illuminated zone is determined to have completed the surface optical state switching, exits the intermediate state management mode, and enters the projection adjustment parameter acquisition process; if the absolute value of the reflected light radiation deviation rate does not exceed the deviation threshold, the illuminated zone is determined to maintain the current surface optical state and the existing equipment control commands remain unchanged. For lighting zones that have completed state switching, the state-projection geometry relationship database is retrieved based on the reflected light radiation deviation rate to obtain the device projection parameters corresponding to the current surface optical state. The projection relationship is then adjusted to obtain the projection adjustment parameters. Based on the viewing direction of the preset observation position, the system divides the field into near, middle and far layers. It reads the reflected light radiation after attenuation correction, calculates the actual brightness contribution ratio of each layer, analyzes the output power of the compensation device for layers that deviate from the preset target ratio, and generates equipment control commands by combining the projection adjustment parameters.

2. The landscape lighting dynamic control method based on environmental perception data according to claim 1, characterized in that: The execution process of the intermediate state managed mode includes: when the lighting zone is determined to be in an intermediate state of transition, a managed control command is issued to the zone device. The managed control command includes beam angle narrowing parameters, projection direction locking parameters, and power limiting parameters. The beam angle narrowing parameters adjust the device beam angle to the minimum value of the device's adjustable range. The projection direction locking parameters fix the projection direction to the pre-stored geometric center coordinates of the lighting object. The power limiting parameters reduce the device output power to a preset proportion of the zone device's rated power recorded during the calibration phase. During the continuous operation of the managed mode, the time series of reflected light radiation deviation rate of the partition is continuously read at a preset sampling period. When the change amplitude of reflected light radiation deviation rate of each adjacent sampling period within the time window is lower than the stability judgment threshold, it is determined that the optical state transition of the illuminated object surface is completed, the managed control command is released, and the partition is determined to have completed the surface optical state switch.

3. The landscape lighting dynamic control method based on environmental perception data according to claim 1, characterized in that: The process of obtaining the projection adjustment parameters includes: establishing a state-projection geometry relationship database for various types of lighting objects in each lighting zone, using the lighting zone number and surface optical state type as indexes, and storing the corresponding target projection direction parameters and target beam angle parameters; storing two types of index entries for the water zone: specular optical state and diffuse optical state. The specular optical state entries correspond to narrow beam projection parameters targeting the effective reflection area of ​​the water body, and the diffuse optical state entries correspond to wide beam projection parameters targeting the geometric center of the water body; storing two types of index entries for the vegetation zone: dry optical state and wet optical state. The dry optical state entries correspond to oblique projection parameters that penetrate the canopy, and the wet optical state entries correspond to forward projection parameters that illuminate the canopy surface. When the illumination zone completes the surface optical state switching, the database is retrieved using the zone number and the current surface optical state type as indexes to obtain the target projection direction parameters and target beam angle parameters, which are then combined into projection adjustment parameters.

4. The landscape lighting dynamic control method based on environmental perception data according to claim 1, characterized in that: The process of obtaining the attenuation-corrected reflected light radiation includes: grouping the photodetectors of each lighting zone into target layers according to the line-of-sight direction of the preset observation position, corresponding to the near-field layer, mid-field layer, and far-field layer; based on the pre-stored geometric distance from each group of photodetectors to the representative sampling position of the corresponding lighting object, and the atmospheric transmittance obtained in real time, applying geometric distance attenuation correction and atmospheric transmittance correction to the reflected light radiation collected by each group simultaneously to obtain the attenuation-corrected reflected light radiation of each visual layer; analyzing the attenuation-corrected reflected light radiation of each visual layer to obtain the global corrected total radiation; and dividing the attenuation-corrected reflected light radiation of each layer by the global corrected total radiation to obtain the actual brightness contribution ratio of each layer.

5. The landscape lighting dynamic control method based on environmental perception data according to claim 1, characterized in that: The process of determining the output power of the compensation device includes: comparing the actual brightness contribution ratio of each visual level with the corresponding preset target ratio to obtain the brightness contribution deviation value of each level; sorting each level according to the absolute value of the brightness contribution deviation value from large to small, and sequentially performing power adjustment on visual levels whose deviation value exceeds the level tolerance range: for levels whose actual brightness contribution ratio is lower than the preset target ratio, issuing a power increase command to the pre-marked level compensation device within the level; for levels whose actual brightness contribution ratio is higher than the preset target ratio, issuing a power decrease command to the level compensation device within the level; after each single-level power adjustment is executed, reading the reflected light radiation amount after attenuation correction for each level and updating the actual brightness contribution ratio of each level, and then performing power adjustment on the next level; after the power adjustment of each level is completed, merging the power adjustment results of the level compensation device with the projection adjustment parameters to generate a full-area device control command.

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