Abstract:With the rapid expansion of China's rail transit network,its huge operational energy consumption,especially the energy consumption of the lighting,has become a key focus of operational cost control.To achieve green,low-carbon,and efficient operational goals,the research and application of intelligent lighting control technology is crucial.This paper focuses on the energy-saving application of intelligent lighting control systems based on power line communication(PLC)technology in the field of rail transit.It begins with an analysis of the characteristics and current energy consumption status of the lighting system in rail transit stations,followed by an in-depth explanation of the basic principles of PLC technology and its all-round compared to other technologies,especially its outstanding value in terms of simple construction,material saving,and intelligent operation and maintenance management.The core of the paper is the design of a P-based intelligent lighting control system architecture suitable for scenarios such as the station hall and platform of a subway station,which details its hardware composition,communication protocol,and intelligent control strategy,including area control,timing control,light-sensing linkage,and human flow response control.Finally,through the pilot case analysis of a certain site of Wenzhou transit,the energy consumption data before and after the system transformation are compared,proving the remarkable effective ness of the system in significantly reducing lighting energy consumption(with an average energy saving rate of 30％),greatly saving transformation materials and construction costs,and realizing digital operation and maintenance management,providing strong theoretical and practical references for the large-scale promotion of PLC in the field of energy saving in rail transit.

Abstract:This study investigates the application of environmental sensing and energy-saving control technologies in IoT-based lighting systems,covering IoT architecture,core environmental sensing technologies,and implementation pathways for energy-efficient control.The research aims to advance smart city development and green building practices.Methodologically,it analyzes the three-tier IoT architecture,examines key environmental sensing technologies such as illuminance and human presence detection,and establishes adaptive brightness adjustment mechanisms to reduce energy consumption,extend equipment lifespan,and achieve high-efficiency energy conservation.

Abstract:Urban lighting projects,while ensuring the safety of residents'night travel and beautifying the city's night view,also increase energy consumption and operation and maintenance costs.To achieve the goal of high-quality,low-cost and sustainable development of urban lighting projects,this article,based on the analysis of the cost composition in the design and construction technology management process of urban lighting projects,proposes feasible cost control strategies,which also provide references for industry practices.

Abstract:Electricity has become an indispensable energy source for daily life and production.China consistently ranks among the world's top electricity consumers,with lighting accounting for approximately one-sixth of total power consumption.Although the nation's electricity generation exceeded 10 trillion kWh in 2024—representing one-third of global output—China's per capita energy consumption remains relatively low due to factors like its large population.Improving lighting system efficiency is crucial not only for operational stability but also for implementing energy-saving policies.This necessitates adopting intelligent lighting control systems while maintaining system quality,enabling smart power management.Building on the"cloud-edge-device"three-tier architecture,this paper explores key technologies in intelligent lighting control systems through qualitative analysis and literature reviews.Case studies demonstrate that such systems serve as reliable solutions for large-scale urban landscape management,while also providing practical references for similar project planning and evaluation.

Abstract:As super high-rise buildings proliferate,intelligent emergency lighting systems have become critical for safety assurance.Focusing on their structure,functions,and value,this study employs AHP-based cost-risk assessment together with economic indicators such as NPV and PBP to analyze a representative case.Results show that uncertainties in design and construction,along with key-equipment prices,exert the greatest influence on overall cost and economic viability,whereas intelligent O&M and energy-saving measures can markedly reduce long-term expenses.The findings provide a scientific basis for optimizing system design,guiding investment decisions,and promoting wider adoption.

Abstract:Under the background of the construction of new smart cities and the development of urban safety,high-rise commercial office buildings,due to their complex architectural structures and dense populations,have put forward higher requirements for the reliability and intelligence level of fire emergency lighting systems.Traditional emergency lighting systems rely on fixed control modes,which have problems such as poor environmental adaptability,low energy efficiency,and delayed emergency response.To address these issues,intelligent control technology for emergency lighting builds a building environment information collection network to achieve real-time perception of multi-dimensional data such as temperature,smoke,and light;uses adaptive algorithms to intelligently analyze environmental data and accurately identify emergency lighting needs;and implements dynamic regulation of centralized power supplies based on sliding mode control strategies.Engineering practice shows that intelligent control systems can effectively improve the response speed and control accuracy of emergency lighting,meeting fire safety regulations while effectively reducing system energy consumption.

Abstract:With the rapid rise of intelligent technology,lighting fixtures have entered a phase of iterative upgrades.Traditional desk lamps have relatively single functions and cannot meet the growing needs of people's lives.Based on this,a multifunctional smart desk lamp has been designed with modes such as sensing,buttons,remote control,and voice control.It can automatically adjust brightness according to the environment,support remote control via mobile phones,voice control,and even posture alerts.This design not only meets basic lighting needs but also enhances operational convenience,offering broad market development potential and practical significance.

Abstract:Traditional phosphor-converted white LEDs(PC-WLED)generally use broad-spectrum green phosphors,resulting in low R9 color rendering index and insufficient radiation luminous efficiency(LER).In this paper,the narrow-band green phosphor is introduced to replace the traditional broad-spectrum phosphor,and the synergistic optimization of high R9 and high LER is realized without introducing deep red phosphor(≥635 nm).In this paper,the technical route,implementation scheme and data calculation are systematically reviewed,and the influence of narrow-band green phosphors on spectral quality,energy efficiency and industrialization prospect is discussed.The results show that:(1)In the color temperature range of 2700 K-3500 K,the narrow-band green phosphor can increase R9 to≥50,the color score ratio is A,and the LER is about 300 lm/W;(2)The controllable depression in the range of 550-580 nm increases the red-green contrast by more than 30%,and the yellow light can be suppressed without a filter;(3)The structure simplifies the phosphor system and reduces the Stokes loss of deep red photons,which provides a new idea for full-spectrum LEDs in high color rendering scenarios such as healthy lighting and livestock lighting.

Abstract:In the history of human civilization,light control technology has always been an important yardstick for measuring social progress.From Suiren's drilling wood to make fire to Edison's tungsten filament light bulb,and from gas discharge lamps to semiconductor lighting,every lighting revolution has profoundly changed the way humans produce and live.At present,the global LED lighting industry is undergoing a strategic transformation from"replacement lighting"to"intelligent light systems",and the core driving force behind this transformation is the breakthrough development of LED chip technology.This paper will deeply analyze the technological evolution path and future application prospects of LED lighting chips from four dimensions:technological depth,system reconstruction,cross-border integration and industrial transformation.

Abstract:This study aims to explore the influence of digital lighting design on cost management in construction projects.By employing lighting simulation,BIM technology,and energy consumption analysis,the research investigates the cost control mechanisms of digital lighting design during the design,construction,and operation stages,with validation through a comparative case study.The results indicate that the digital approach significantly reduces initial project investment,effectively minimizes rework and waste during the construction phase,and achieves substantial savings in energy consumption and maintenance costs over the long-term operation,demonstrating notable advantages in whole-life-cycle costs.

Abstract:With the widespread application of high-power LED luminaires in industries such as industrial and road lighting,heat dissipation has become a core bottleneck restricting the improvement of luminous efficiency and extension of lifespan.Graphene,with its superior thermal conductivity,has significant advantages in the field of heat dissipation materials.Applying it to the heat dissipation system of high-power LED luminaires holds important engineering value and scientific research significance.This paper focuses on the measurement method of the heat dissipation performance of graphene high-thermal-conductivity films,systematically studies the structural design of the graphene heat dissipation system for high-power LED luminaires,and primarily explores precise measurement methods.By combining theoretical analysis,structural optimization,and experimental testing,a heat dissipation system model is constructed,and an efficient and precise measurement scheme is proposed.Experiments show that the designed graphene heat dissipation system can effectively reduce the operating temperature of the luminaires,stabilizing the junction temperature to as low as 62℃,a reduction of 23℃compared to traditional aluminum alloy heat dissipation systems.The measurement method error is controlled within 5%,accurately reflecting the heat dissipation characteristics of the film.The research results provide theoretical support for the optimal design of heat dissipation systems and offer a reliable measurement method for evaluating the heat dissipation performance of films.

Abstract:In response to the increasing demands for uniformity of illumination and energy efficiency in large advertising light boxes,research has been conducted on the structural design and light distribution strategy of LED primary lenses.This study elaborates on the lens optical structure modeling,parameter control mechanism,and illumination distribution simulation method.It also introduces the process of actual data collection and comparison verification methods.By combining different curvature design schemes,the research results show that the optimized lens excels in terms of illumination uniformity and consistency with actual measurements,effectively enhancing the system's light energy utilization efficiency and lighting quality.

Abstract:Starting from the principles of electrical lighting in museum exhibition areas,this article explores the electrical lighting strategies for museum exhibition areas.It systematically analyzes the damage mechanism of light radiation to cultural relics and the protection requirements,and focuses on discussing the importance of illuminance control,annual exposure management,and intelligent regulation.From four dimensions including technological innovation in light source selection,precise control of lighting parameters,key lighting design for display cases,and the combination of natural and artificial lighting,it proposes electrical lighting strategies for museum exhibition areas,aiming to provide certain references and guidance for building a safe,comfortable,and efficient lighting environment in museums.

Abstract:To address the issues of high energy consumption,slow response,and maintenance difficulties in urban park lighting,this paper starts from the lighting requirements of urban parks,analyzes their hardware architecture,software algorithms,and system integration capabilities,and proposes energy-saving approaches such as dynamic control,data optimization,and integration of green energy.At the same time,it explores the future development trends of smart street lighting.

Abstract:Surface-mounted light-emitting diode(SMD LED)is widely used in commercial lighting,household lighting,backlight displays,and other fields.The combination of SMD LED and surface mount technology(SMT)not only achieves miniaturization and lightweighting of electronic products,but also significantly improves product reliability and production efficiency.However,the"popcorn effect"in the SMT soldering process is a problem that hinders the application of LED devices.This article has explored the relationship between moisture absorption rate and"popcorn effect"failure rate through simulation experiments,and examined the effects of packaging materials and brackets on the moisture absorption of LED devices.The results indicate that LED devices exhibit a"popcorn effect"when the moisture absorption rate exceeds 1 wt.‰.The moisture absorbed by the interface of LED bracket materials and structures is the main pathway for LED devices to absorb moisture,with moisture content accounting for 85.68%to 97.82%of the total moisture absorption.Based on the establishment of a moisture absorption failure rate model and commercial packaging materials,the effects of inorganic fillers and wetting agents on the"popcorn effect"have been investigated.The moisture absorption rate and failure rate of LED devices decrease with the increase of inorganic filler KMP590 in the packaging material,and the moisture absorption rate and failure rate achieve significant reductions of 35%and 64%,respectively.By adding KYC643 wetting agent,the failure rate was reduced from 79.17%to 52.08%,and the leveling time was shortened from 9.8 min to 3.5 min.This article provides directions for improving the performance of packaging materials,as well as studying the moisture absorption of LED devices,which also provides a theoretical basis for the failure analysis of the"popcorn effect".

Abstract:The article reveals the integration path of lighting and spatial design.Through the dynamic efficiency synergy of natural light and artificial light and intelligent lighting spatial algorithms,a living environment with dual optimization of function and perception is constructed.Empirical evidence based on open and interactive residential cases shows that integrated design combined with physical environment adaptation,physiological rhythm regulation,and psychological perception guidance paths can enhance the visual comfort and behavioral efficiency of residents.

Abstract:This article focuses on the integrated design and construction of prefabricated buildings and intelligent lighting systems.By clarifying the principles of integrated design and system architecture,an integrated solution covering the perception layer,control layer,and execution layer was proposed.Combined with BIM technology and modular construction methods,the collaborative prefabrication and rapid installation of lighting systems and prefabricated components were achieved.The case application shows that this integrated mode can shorten the construction period by about 22％,reduce lighting energy consumption by 35％,improve user comfort and satisfaction by 22％,and significantly improve operation and maintenance efficiency.The research has verified the feasibility of integrated construction in prefabricated buildings,providing practical basis for promoting green and intelligent construction.

Abstract:At present,the contradiction between energy supply and demand is becoming increasingly prominent,and the concept of green development has taken root in people's minds.Intelligent lighting control systems play an important role in electrical lighting and can achieve energy-saving goals.This article explores intelligent lighting control systems,analyzes their advantages in energy-saving design for electrical lighting,and discusses their specific applications in detail.

Abstract:Industrial lighting suffers from uneven illuminance and energy waste.This paper presents a machine vision-based recycled lighting system using industrial camera HDR imaging for non-contact illuminance measurement,PWM-driven programmable LED arrays,and ambient light recycling with closed-loop control.Experiments show 38 lx camera error,uniformity improved from 0.62 to 0.86,UGR reduced 27％,and 41.3％energy savings.

Abstract:Public lighting energy consumption accounts for a significant proportion of urban electricity consumption.The traditional energy consumption management of street lamps has intensified the pressure of carbon emissions and operation and maintenance costs.With the breakthrough progress of IoT technology and artificial intelligence algorithms,smart lighting control technology,with its core functions such as dynamic dimming,scene adaptation,and fault prediction,provides technical support for optimizing the energy consumption of street lamps,achieving on-demand lighting and significantly enhancing the efficiency of the entire life cycle management of facilities.It has become a key infrastructure for the construction of new smart cities.Therefore,conducting a systematic exploration of the mechanism by which smart lighting technology influences the energy consumption of street lamp systems can reveal the quantitative correlation between technology application and energy-saving benefits,providing a replicable technical paradigm for the green and low-carbon transformation of cities.