Construction site illumination intelligent energy-saving system and control method

Abstract

The invention discloses a construction site lighting intelligent energy-saving system and a control method, and belongs to the technical field of building engineering construction energy saving. The system comprises a multi-source sensing module, a lighting execution module, a core intelligent control module, a communication module and a remote management platform. The system fuses personnel activities, construction features and environment illumination data through a multi-source sensing module; the core intelligent control module calls a multi-source data fusion logic and an adaptive algorithm to generate a lighting control instruction based on the current working state of the system determined by the construction plan, the time period and the sensing data; the lighting execution module executes instructions through dynamic partition and multi-loop control. According to the method, the authenticity of personnel activities is verified through multi-source data fusion, the adaptive construction progress is divided by using a dynamic function, and precise on-demand illumination is realized by combining a scene mode and adaptive dimming, so that the defects of high energy consumption, poor adaptability and low operation and maintenance efficiency of traditional illumination are overcome, and the illumination energy consumption and the operation and maintenance cost of a construction site are remarkably reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of construction site lighting energy saving, and particularly relates to a construction site lighting intelligent energy saving system and a control method. BACKGROUND

[0002] In a construction site, a lighting system is a key infrastructure for ensuring construction safety and work efficiency, and needs to cover multiple areas such as main passageways, work areas, staircases, and basements.

[0003] At present, the lighting control of a construction site generally adopts the following lighting control scheme: fixed-power lighting lamps are used, and a simple control mode based on a physical circuit is used. Specifically, the structure of this traditional scheme is mainly as follows: the construction area is roughly divided into a plurality of fixed areas, a plurality of lamps in each area are connected to one or a few power supply circuits, and unified power-on and power-off of the entire circuit are realized by manually operating an air switch or a contactor in a distribution box. Lighting is managed by relying on manual operation, and workers usually close the power supply before construction and open the power supply after construction. In some cases, a simple timer is used as an aid to realize the opening and closing of the entire lighting circuit according to a fixed time schedule.

[0004] The lighting control mode of the above scheme has the following technical defects:

[0005] 1. Serious energy waste: Since fixed-power lamps and rough area control are used, once turned on, all lamps in the area will run at rated power continuously. It is impossible to accurately adjust according to whether there is personnel activity in the local area, whether the natural light is sufficient, and other actual situations. This results in a large amount of invalid lighting and energy waste in non-construction periods, unoccupied areas, or cases where natural light meets the demand.

[0006] 2. Lack of intelligent adaptability:

[0007] 1) Fixed and rigid division of areas: The division of lighting areas is fixed after being set at the beginning of construction, and cannot adapt to the dynamic changes in the functions and ranges of core work areas, material storage areas, passageways, and other areas during the construction process. For example, the core area of the foundation pit in the foundation construction stage may become a secondary area after entering the main construction, but the lighting system cannot adjust accordingly.

[0008] 2) Single strategy: It is impossible to configure special and refined lighting strategies for specific construction activities such as night concrete pouring, safety inspection, and material loading and unloading.

[0009] 3) Static parameters: It is impossible to dynamically adjust lighting parameters such as lighting-on and lighting-off times and light intensity in combination with changes in light caused by seasonal changes and differences in the rhythm of different construction processes.

[0010] 3. Low efficiency of operation and management:

[0011] 1) Lack of status monitoring: It is difficult to monitor the failure of a single luminaire, sensor or circuit in real time (such as luminaire damage, line abnormality). Failure of one device can cause the entire area to lose lighting, and troubleshooting and positioning completely rely on manual inspection, which is inefficient and has high maintenance costs.

[0012] 2) Lack of data analysis: Lack of energy consumption statistics function by different construction stages, different functional areas and different types of work. Managers cannot obtain data support and it is difficult to evaluate energy efficiency bottlenecks and optimize energy saving strategies.

[0013] At present, although there are some sensing lighting schemes for indoor corridors, garages and other environments (such as based on a single human infrared sensor), these schemes are mostly limited to static and small-scale scenarios, with single sensing means, easy misjudgment and simple control logic. They do not consider the distinct characteristics of construction sites such as "dynamic changes in areas, flexible work and rest, complex personnel and mechanical activities" from a system level, lack of multi-source information fusion, precise sensing, dynamic adjustment of control architecture according to construction progress, and intelligent management mechanism for specific scenarios, and thus cannot meet the urgent needs of lighting systems in the whole life cycle of building construction for universality, high energy efficiency and intelligent operation and maintenance. SUMMARY

[0014] The purpose of the present application is to solve the problems of high energy consumption, poor adaptability and inefficient operation and maintenance of existing construction site lighting systems. The present application provides a construction site lighting intelligent energy-saving system and control method, which improves judgment accuracy through multi-source data fusion, dynamically divides areas to adapt to construction progress, and optimizes specific needs through scene-based control. Combined with the adaptive algorithm of the core intelligent control module and the whole-cycle monitoring of the remote management platform, the present application realizes dynamic optimization of lighting energy consumption, has universality in all stages of construction, and reduces energy waste and operation and maintenance costs.

[0015] The technical scheme adopted by the present application is: the construction site lighting intelligent energy-saving system comprises a multi-source sensing module, a lighting execution module, a core intelligent control module, a communication module and a remote management platform; the multi-source sensing module comprises a human body sensing sensor, a sound recognition sensor, an infrared thermal imaging sensor and an illumination sensor, which is used to collect personnel activity state, construction activity characteristics, construction time period and natural light intensity data of the construction site; the core intelligent control module receives the sensing data of the multi-source sensing module through the communication module, and based on the current working state of the system determined by the construction plan, time period and sensing data, calls the preset multi-source data fusion logic and adaptive algorithm to generate lighting control instructions, and outputs the lighting control instructions to the lighting execution module; the lighting execution module comprises a dynamic partition lighting unit and a multi-loop control unit, which is used to adjust the lighting power, on-off state and regional lighting priority of each loop according to the lighting control instructions; the remote management platform is connected with the core intelligent control module through the communication module, and is used for configuration of system running parameters, update of lighting dynamic area, manual calling and switching of scene mode, real-time state monitoring and abnormal alarm.

[0016] Further, the core intelligent control module identifies the sensing data to generate a sensing event representing a specific construction activity; the determination of the current working state of the system is based on the sensing event.

[0017] Further, the core intelligent control module pre-stores or has access to lighting strategies of multiple scene modes; the core intelligent control module is configured to be able to automatically trigger the corresponding scene mode according to the current working state of the system, and generate the lighting control instructions for executing the lighting strategy of the scene mode.

[0018] Further, the scene mode comprises a night pouring mode, a safety inspection mode and a material loading and unloading mode.

[0019] Further, the dynamic partition lighting unit dynamically divides the physical lighting area according to the preset construction phase plan, and establishes a mapping relationship between the physical infrastructure and the functional partition; the functional partition formed after the functional division at least comprises a main passage area, a core operation area, an auxiliary area and a safety passage area; the lamps in each functional area support independent adjustment of three states of high power, low power and off.

[0020] The energy-saving control method based on the construction site lighting intelligent energy-saving system comprises the following steps:

[0021] Step S1, parameter presetting step: configure the area division plan corresponding to the construction phase, the construction activity plan, the illumination threshold and the scene mode parameters through the remote management platform;

[0022] Step S2, data acquisition step: real-time acquisition of personnel activity state, construction activity characteristics, time period information and natural light data by the multi-source perception module;

[0023] Step S3, intelligent decision-making and instruction issuing step: the core intelligent control module judges the lighting state of each functional area based on multi-source data fusion logic and adaptive algorithm, combined with the current construction stage and scene mode, and generates lighting adjustment instructions to issue to the lighting execution module;

[0024] Step S4, execution and feedback step: the lighting execution module executes the lighting adjustment instructions and feeds back the execution state to the remote management platform, and triggers an alarm when an abnormality is detected.

[0025] Further, the multi-source data fusion logic in step S3 is specifically: cross-verification of the personnel presence signal output by the human body sensor, the construction noise characteristics output by the sound recognition sensor, and the personnel contour information output by the infrared thermal imaging sensor to determine the authenticity of personnel activity.

[0026] Further, the adaptive algorithm in step S3 is specifically: based on historical lighting operation data and real-time environmental changes, dynamically optimizing the illumination threshold, the time threshold of determining the vacancy of the region, and the triggering conditions of different scene modes.

[0027] Further, the lighting control rules on which the lighting state of each functional area is judged in step S3 include:

[0028] During the construction working period, when the dynamically divided core work area is determined to have effective personnel activity by the multi-source data fusion logic, and the environmental light is lower than the preset threshold, high-power lighting is turned on; when the region is continuously unoccupied for more than a preset time threshold, the lighting is automatically adjusted to low-power or turned off;

[0029] During the non-construction working period, only low-power security lighting is retained in each safety passage area; when temporary inspection activities are detected during the non-working period, the scene mode corresponding to the inspection activities is triggered, temporary lighting is turned on, and after the activity is over, it is automatically restored to the low-power security state.

[0030] The present application has the following beneficial effects: 1. Through multi-source data fusion, false triggering is effectively eliminated, real personnel construction activity is accurately judged, and invalid lighting is avoided.

[0031] 2. Through dynamic function division and scene mode, the lighting strategy closely matches the construction progress and specific work requirements, realizes on-demand lighting, and significantly reduces energy consumption.

[0032] 3. The remote management platform realizes whole-cycle monitoring, parameter configuration and abnormal alarm, greatly reduces manual inspection and maintenance cost, and improves management efficiency.

[0033] 4. The system design can adapt to the differentiated lighting needs of various construction stages from basic construction to decoration completion, and has wide applicability. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0035] Figure 1 The present application is a schematic diagram.

[0036] In the figure, the multi-source perception module 1, the human body sensing sensor 110, the sound recognition sensor 120, the infrared thermal imaging sensor 130, the light sensor 140, the lighting execution module 2, the dynamic zoning lighting unit 210, the dynamic multi-loop control unit 220, the core intelligent control module 3, the data receiving unit 310, the multi-source data fusion unit 320, the adaptive algorithm unit 330, the instruction output unit 340, the scene mode unit 350, the communication module 4, the remote management platform 5, the parameter configuration unit 510, the state monitoring unit 520, and the abnormal alarm unit 530. DETAILED DESCRIPTION

[0037] The present application will be further described below in combination with the drawings and embodiments as follows:

[0038] The present application will be further described below in combination with the drawings and embodiments as follows:

[0039] The construction site lighting intelligent energy-saving system disclosed by the present application, as shown in Figure 1 The present application comprises a multi-source perception module 1, a lighting execution module 2, a core intelligent control module 3, a communication module 4 and a remote management platform 5.

[0040] The multi-source perception module 1 is used to collect relevant data of the construction site, such as personnel activity state, construction activity characteristics, construction time period and natural light intensity data, and comprises:

[0041] The human body sensing sensor 110 is arranged in the lighting area and preliminarily monitors whether there is personnel activity in the area;

[0042] Sound recognition sensor 120: arranged in the lighting area, collects sound signals in the area, identifies the characteristics of construction tool noise (such as electric drill, concrete pump truck), personnel communication sound, etc., to assist in determining whether there is effective construction or personnel activity;

[0043] Infrared thermal imaging sensor 130: arranged in the lighting area, accurately captures the outline of the personnel and the distribution of the heat source, and is used to exclude the false touch interference of non-personnel objects (such as sundries, equipment) on the human body sensing sensor;

[0044] Illumination sensor 140: arranged in the lighting area, collects the natural light intensity of each area, and is used to determine whether the lighting demand of the current construction stage or scene is met.

[0045] The lighting execution module 2 adjusts the lighting state according to the lighting control instruction, and adapts to the construction progress and scene demand. It includes:

[0046] Dynamic partitioning lighting unit 210: supports dynamically updating the function division and lighting priority of the lighting area according to the construction stage plan (such as setting the foundation pit area as the core operation area in the foundation stage to preferentially guarantee high-power lighting; adjusting the area to an auxiliary material stacking area in the decoration stage to reduce the lighting power and priority); each area is configured with adjustable power lighting lamps, supporting three basic states of high power, low power, and off; the dynamic updating of the function division of the lighting area refers to dynamically dividing the lighting area into multiple functional areas according to the preset construction stage plan, and these functional areas at least include a main passage area, a core operation area, an auxiliary area, and a safety passage area. The lighting priority refers to sorting the multiple functional areas according to the lighting priority, and preferentially satisfying the lighting in order from high to low according to the priority level.

[0047] Dynamic multi-circuit control unit 220: independently configures a power supply circuit in each lighting area, supporting the on-off and power adjustment of part of the lamps or all the lamps in the area.

[0048] The core intelligent control module 3 is the logic processing center of the system, realizes intelligent decision and adaptive control, receives the sensing data of the multi-source sensing module 1 through the communication module 4, and generates lighting control instructions based on the current working state of the system determined by the construction plan, time period and sensing data, and outputs the lighting control instructions to the lighting execution module 2. It includes:

[0049] Data receiving unit 310: receives personnel activity, construction activity characteristics, time and illumination data transmitted by the multi-source sensing module 1;

[0050] Multi-source data fusion unit 320: Based on the preset logic comprehensive analysis of multi-sensor data, such as "human body sensing signal + construction noise characteristics + personnel infrared contour" match, it is determined that "effective personnel activity"; "only human body sensing signal without other data evidence", it is determined that "invalid interference", do not trigger lighting;

[0051] Adaptive algorithm unit 330: As one of the operation cores of the core intelligent control module 3, it is internally configured or programmed to execute adaptive algorithms. Based on historical lighting data (such as energy consumption rules in different construction stages and seasonal light change trends) and real-time environmental parameters, the adaptive algorithm is run to dynamically optimize the light threshold, the region vacancy duration, and the scene mode trigger condition (such as automatically increasing the work light threshold when the natural light is sufficient in summer; turning on the auxiliary lighting in advance when the light is insufficient in winter); The unit receives the status judgment from the multi-source data fusion unit 320, executes the algorithm to generate lighting control instructions, and transmits them to the instruction output unit 340.

[0052] Among them, the adaptive algorithm includes a closed-loop dimming logic based on a PID controller, which takes the deviation between the target illuminance and the real-time illuminance as input, calculates and outputs a lighting power adjustment signal.

[0053] The closed-loop dimming logic based on the PID controller is used to accurately adjust the power after determining the need for lighting. The target illuminance determined by the system according to the current working state and the scene mode (for example, 300 lux for the core work area) is used as the set value. The actual environmental illuminance value collected by the light sensor 140 in real time is used as the process variable. The controller is a digital PID controller running in the core intelligent control module 3. The multi-loop control unit 220 in the lighting execution module 2 and the adjustable light fixture serve as actuators. The PID controller continuously calculates the deviation between the target illuminance and the real-time illuminance, and the controller calculates and outputs a lighting power adjustment signal in real time according to the proportional (P), integral (I), and derivative (D) terms of the deviation. The lighting execution module 2 receives this power adjustment signal and drives the lamp to change the output luminous flux. Among them, the proportional term provides a proportional response to the current deviation, quickly reducing the deviation. The integral term accumulates historical deviations to eliminate static deviations and ensure that the system eventually stabilizes at the target illuminance without persistent deviations. The derivative term adjusts according to the rate of change of the deviation, predicts future deviation trends, and suppresses oscillations to make the illuminance change process smoother and more stable, avoiding frequent fluctuations in power and illuminance. For example: when the natural light is blocked, the work surface illuminance drops from 320 lux to 250 lux, the PID controller will immediately detect a +50 lux positive deviation and quickly calculate an increased power output to drive the lamp to supplement light; When the natural light is restored, the controller will smoothly reduce the power to eventually stabilize the combined illuminance around the target value of 300 lux.

[0054] The instruction output unit 340 sends a lighting control instruction to the lighting execution module, and the lighting control instruction includes a power adjustment, on-off or scene mode switching instruction, etc.

[0055] The scene mode unit 350 pre-stores lighting strategies of scene modes such as night-time pouring, safety inspection, and material loading and unloading. For example, the lighting strategy corresponding to the night-time pouring mode is “high power in the core working area + low power supplementary light in the surrounding auxiliary area”; the lighting strategy corresponding to the safety inspection mode is “low power linkage lighting on the inspection path”, which can be called through the remote management platform 5 or automatically triggered based on multi-source sensing data.

[0056] It can be determined by the system through analyzing the following three types of information which working state the system should be in at present: first, the construction plan, which comes from the macro task instruction of the remote management platform 5. It defines the overall goal and regional division plan in different construction stages (such as foundation, main body, decoration). Second, the time period, which comes from the time of the system clock. It matches the preset construction schedule (such as working period, rest period, night) and defines the basic behavior criteria at different time points. Third, the sensing data, which comes from the real-time environment snapshot of the multi-source sensing module 1. It reflects what is happening at the construction site at the moment, which is the direct cause of triggering state transition.

[0057] The system working state is embodied in a series of pre-defined scene modes with lighting strategies. Example one: through the construction plan and the time period, it is determined that the system is in the daytime working period of the main body construction stage, and the system continuously monitors the personnel activity and light in each functional area. In this state, when the core working area is determined to have “effective personnel activity” and “insufficient light” through multi-source data fusion, the lighting is turned on; when it is determined that “personnel has left” and “continuous vacancy timeout”, the lighting is turned off. The whole process is in the “daytime construction working state”, and the adjustment is made within the strategy framework of this state, while the daytime construction working state is the current working state of the system.

[0058] Example two: through the construction plan and the time period, it is determined that the system is in the night-time working period of the main body construction stage, and the sound recognition sensor in the core working area continuously captures the characteristic noise of the concrete pump truck. In this state, the core working area determines that the external conditions meet the triggering conditions of the night-time pouring state through multi-source data fusion. The whole process calls the night-time pouring lighting strategy, and the night-time pouring state is the current working state of the system.

[0059] Therefore, the "current working state of the system" is an intelligent hub that connects the macro intention of the "construction plan", the periodic law of the "time period", and the instantaneous dynamics of the "perception data". It determines which multi-source data fusion logic (e.g., the confidence threshold of "valid activity" can be adjusted in different states) and which adaptive algorithm (e.g., the target illumination value is different in different states) will be called by the system, and finally outputs the matching lighting control instruction. This mechanism ensures that the control behavior of the system is memory, foresight, and strategy, rather than a simple response to sensor signals, thereby achieving true intelligent energy saving.

[0060] The communication module 4 uses wireless (such as LoRa, WiFi) or wired (such as Ethernet) communication methods to realize stable data transmission between the multi-source perception module 1 and the core intelligent control module 3, and between the core intelligent control module 3 and the remote management platform 5, adapting to the complex communication environment of the construction site.

[0061] The remote management platform 5 is used for system parameter configuration and full-cycle operation monitoring, including:

[0062] The parameter configuration unit 510 supports remote setting of the regional division plan corresponding to the construction phase, the construction work schedule, the basic light threshold, the multi-source perception fusion logic parameter, and the scene mode parameter;

[0063] The state monitoring unit 520: real-time display of the lighting state (power, on-off), multi-sensor operation state, scene mode activation, and energy consumption statistical data according to region, construction phase, and scene mode;

[0064] The abnormal alarm unit 530: when the lighting fixture fails, the sensor fails, the energy consumption is abnormal, or the dynamic region division does not match the construction progress, an alarm is triggered and pushed to the operation and maintenance personnel terminal, supporting remote troubleshooting and parameter adjustment.

[0065] It needs to be noted that the mapping relationship between the physical infrastructure and the functional partition is to achieve dynamic functional division by performing flexible logical mapping on fixed physical infrastructure. The physical infrastructure includes various sensors and power supply circuits, etc., as follows:

[0066] 1) The various sensors in the multi-source perception module 1 are laid out according to the site general layout at the initial stage of construction to achieve basic coverage of the construction area. The "lighting area" refers to the physical space covered by these sensors and luminaires at the physical level. In the remote management platform 5, when the administrator defines or updates the dynamic functional zoning (such as the core work area, auxiliary area), it is essentially to set the geographical boundaries for these functional zones. The system automatically associates all sensors within the geographical boundaries with the functional zone. Therefore, the data of a physical sensor can serve different logical zones, depending on which functional zone it is dynamically divided into at different construction stages.

[0067] 2) The power supply circuit is fixed after the layout is completed, and each circuit controls one or more fixed physical position luminaires. The "independent configuration of power supply circuit for each lighting area" should be understood as: the system supports independently configuring and driving one or more power supply circuits for each functional zone. In the remote management platform 5, the administrator groups different power supply circuits under different functional zones through "dragging" or "selecting" operations. For example, in construction phase A, power supply circuits 1, 2, and 3 are grouped into the logical "core work area"; in phase B, circuits 1 and 2 can be grouped into a new "core work area", while circuit 3 is grouped into an "auxiliary area". One of the core functions of the "dynamic zoning lighting unit" is to manage and execute this dynamic grouping relationship between power supply circuits and functional zones.

[0068] The specific energy-saving control process is as follows:

[0069] System initialization configuration: input the basic parameters of the construction site through the remote management platform 5: ① Construction phase corresponding to the area division plan: preset the lighting area functional division of the basic, structural, and decorative stages (such as the basic stage: core work area = foundation pit area, auxiliary area = material storage area; decorative stage: core work area = floor interior, auxiliary area = foundation pit backfill area); ② Work schedule: set work hours, rest hours, and night watch hours; ③ Basic light threshold: distinguish the minimum light intensity required for work and the minimum light intensity required for safe watch; ④ Scene mode parameters: configure the lighting area combination and power rules for night pouring, safety inspection, material loading and unloading, etc. scenes; ⑤ Multi-source perception fusion parameters: set the sensor verification logic, and when "human body sensing signal + construction noise features + personnel infrared outline" match, it is determined as "effective personnel activity".

[0070] Multi-source real-time data acquisition: the multi-source perception module 1 continuously acquires regional data and transmits them to the core intelligent control module 3 through the communication module 4, as follows:

[0071] The human body sensing sensor 110 outputs a "person present" or "person not present" signal;

[0072] The sound recognition sensor 120 collects and analyzes sound features and outputs a "construction noise", "person communication sound" or "no valid sound" signal;

[0073] The infrared thermal imaging sensor outputs a "person outline exists" or "person outline does not exist" signal;

[0074] The light sensor outputs the real-time natural light intensity;

[0075] The system clock synchronizes the current time period type (such as work period, rest period or night shift period) with the current construction stage (such as foundation stage, structure stage or decoration stage).

[0076] Intelligent logic judgment and instruction issuing: the core intelligent control module 3 combines the multi-source data it receives, the current construction stage and the scene mode, independently judges and outputs lighting instructions for each dynamic area, as follows:

[0077] It is currently a construction work period:

[0078] If the core work area (such as the foundation pit area) detects "person exists + construction noise + person outline" (multi-source verification of valid activity), and the natural light intensity < work light threshold, then instruct to turn on high-power lighting in this area, activate the "foundation work mode" at the same time, and turn on low-power supplementary lighting in the auxiliary area (material storage area);

[0079] If only the human body sensing sensor 110 in the core work area detects a "person exists" signal, without sound and infrared data to support, it is determined to be invalid interference, and the area remains in the current off or low-power lighting state;

[0080] If the core work area detects a "person does not exist" signal and the interval time is greater than or equal to the preset empty time, then instruct to turn off the lighting in this area, and the auxiliary area is synchronized to low-power standby.

[0081] It is currently a non-work period (including rest, night):

[0082] If the infrared outline of a person carrying an inspection tool (matching the safety inspection feature) is detected, the "safety inspection mode" is automatically triggered, only turning on low-power lighting in the dynamic area on the inspection path, and automatically restoring the low-power standby of the safety passage after the person leaves;

[0083] If the dynamic core work area (such as the floor pouring area in the structure stage) detects the running noise of the concrete pump truck, the "night pouring mode" is automatically activated, turning on high-power lighting in the core work area and low-power lighting in the surrounding area, and restoring the standby state after pouring is completed;

[0084] If all areas are "unmanned and no construction activities", only the security passage area remains low-power guard, and the rest of the areas are closed lighting.

[0085] State feedback and operation monitoring: The lighting execution module 2 feeds back the current lighting state (power, on-off, scene mode) to the core intelligent control module 3, and then uploads it to the remote management platform 5 through the communication module 4; the remote management platform 5 updates the energy consumption data of each dynamic area in real time, generates energy consumption reports according to the construction stage and scene mode; if it is detected that the lamp continuously does not respond to the instruction, the sensor data is abnormal (such as the light sensor value is constant), or the energy consumption of a certain area is significantly higher than that of the same type of area, an alarm is triggered and pushed to the operation personnel terminal, supporting remote viewing of multi-source sensor data and locating the fault cause (such as lamp loop failure, sensor shielding).

[0086] The above-described embodiments are only preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Any equivalent replacement or transformation made by those skilled in the art based on the present application is within the protection scope of the present application.

Claims

1. An intelligent energy saving system for construction site lighting, characterized in that, It comprises a multi-source perception module (1), a lighting execution module (2), a core intelligent control module (3), a communication module (4) and a remote management platform (5); The multi-source perception module (1) comprises a human body sensing sensor (110), a sound recognition sensor (120), an infrared thermal imaging sensor (130) and an illumination sensor (140) for collecting personnel activity state, construction activity characteristics, construction time period and natural illumination intensity data of the construction site; The core intelligent control module (3) receives the perception data of the multi-source perception module (1) through the communication module (4), and generates lighting control instructions by calling preset multi-source data fusion logic and adaptive algorithms based on the current system working state determined by the construction plan, time period and perception data, and outputs the lighting control instructions to the lighting execution module (2); The lighting execution module (2) comprises a dynamic zoning lighting unit (210) and a multi-loop control unit (220) for adjusting the lighting power, on-off state and regional lighting priority of each loop according to the lighting control instructions; The remote management platform (5) is connected with the core intelligent control module (3) through the communication module (4) for system running parameter configuration, lighting dynamic region update, scene mode manual calling and switching, real-time state monitoring and abnormal alarm.

2. The construction site lighting intelligent energy saving system according to claim 1, wherein, The core intelligent control module (3) identifies the perception data to generate a perception event representing a specific construction activity; the determination of the current system working state is based on the perception event.

3. The intelligent energy saving system for construction site lighting as claimed in claim 1 or 2 wherein, The core intelligent control module (3) pre-stores or has access to lighting strategies of multiple scene modes; the core intelligent control module (3) is configured to automatically trigger the corresponding scene mode according to the current system working state and generate lighting control instructions for executing the lighting strategy of the scene mode.

4. The construction site lighting intelligent energy saving system according to claim 3, wherein, The scene modes include night pouring mode, safety inspection mode and material loading and unloading mode.

5. The intelligent energy saving system for construction site lighting as claimed in claim 1 wherein, The dynamic zoning lighting unit (210) dynamically divides the physical lighting region according to the preset construction phase plan, and establishes a mapping relationship between the physical infrastructure and the functional zones; the functional zones formed after the functional division include at least main passage zone, core operation zone, auxiliary zone and safety passage zone; the lamps in each functional zone support independent adjustment of high power, low power and off state.

6. The energy saving control method of the construction site lighting intelligent energy saving system according to claim 1, characterized in that, It comprises the following steps: Step S1, parameter presetting step: configuring the region division plan corresponding to the construction phase, construction activity plan, illumination threshold and scene mode parameters through the remote management platform (5); Step S2, data acquisition step: acquiring personnel activity state, construction activity characteristics, time period information and natural illumination data in real time through the multi-source perception module (1); Step S3, intelligent decision-making and instruction issuing step: the core intelligent control module (3) determines the lighting state of each functional region based on the multi-source data fusion logic and adaptive algorithms combined with the current construction phase and scene mode, and generates lighting adjustment instructions to issue to the lighting execution module (2); Step S4, lighting execution step: the lighting execution module (2) adjusts the lighting power, on-off state and regional lighting priority of each loop according to the lighting adjustment instructions. Step S4, a feedback step is performed: the lighting execution module (2) executes the lighting adjustment instruction and feeds back the execution state to the remote management platform (5), and triggers an alarm when an abnormality is detected.

7. The energy saving control method according to claim 6, characterized in that, The multi-source data fusion logic in step S3 is specifically: synthesizing the personnel presence signal output by the human sensing sensor, the construction noise features output by the sound recognition sensor, and the personnel contour information output by the infrared thermal imaging sensor, cross-verification is performed to determine the authenticity of personnel activities.

8. The energy saving control method according to claim 7, characterized by, The adaptive algorithm in step S3 is specifically: based on historical lighting operation data and real-time environmental changes, dynamically optimizing the illumination threshold, the time threshold for determining the vacancy of the region, and the triggering conditions of different scene modes.

9. The energy saving control method according to claim 8, wherein The lighting control rules on which the lighting state of each functional area is determined in step S3 include: During the construction work period, when the dynamically divided core work area is determined to have effective personnel activities by the multi-source data fusion logic, and the environmental illumination is lower than the preset threshold, high-power lighting is turned on; when the region is continuously unoccupied for more than a preset time threshold, the lighting is automatically adjusted to low-power or turned off; During the non-construction work period, only low-power security lighting is retained in each safety passage area; when temporary inspection activities are detected during the non-work period, the scene mode corresponding to the inspection activities is triggered, temporary lighting is turned on, and after the activities are completed, it is automatically restored to the low-power security state.

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