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Implementation plan for the transformation and construction of solar street lamps

来源：Smart Pole net 时间：2023-03-23 14:33:49

I. Introduction

As the world energy crisis intensifies, all countries are seeking solutions to the energy crisis. One way is to seek the use of new energy and renewable energy. The other is to seek new energy-saving technologies to reduce energy consumption and improve energy efficiency. Solar energy is the most direct, universal and cleanest energy on earth. As a huge renewable energy, the radiant energy reaching the earth's surface every day is about 2.5 billion barrels of oil, which can be said to be inexhaustible. Solar energy as a safe, environmental protection of new energy more and more attention. At the same time, with the development and progress of solar photovoltaic technology, the advantages of solar lamp products in environmental protection and energy saving, the application of solar street lights, solar garden lights, lawn lights and other aspects has gradually formed a scale, and the development of solar power in the field of street lighting has become increasingly perfect.
Solar lamp

Global energy shortage and environmental pollution are particularly prominent in China, which is experiencing rapid economic development. Energy saving and environmental protection are urgent problems for China to achieve sustainable social and economic development. The annual lighting energy consumption accounts for about 12% ~ 15% of the total electricity consumption. As a large energy consumption, we must find a new generation of energy saving and environmental protection light sources that can replace the traditional light sources as soon as possible. According to a special survey conducted by the National Green Lighting Project Promotion Project Office, China's annual lighting electricity consumption is more than 300 billion KWH, and road lighting accounts for one-third of the electricity consumption if replaced by solar energy, which is equivalent to the annual power generation of the Three Gorges Project with a total investment of more than 200 billion yuan.

Ii. National Policies

China's photovoltaic power generation industry started in the 1970s. After more than 30 years of efforts, it has ushered in a new stage of rapid development. Under the national projects such as "bright project" and "send power to township" and world photovoltaic market, our country photovoltaic power industry develops rapidly. By the end of 2007, the cumulative installed capacity of photovoltaic systems in China reached 100,000 kilowatts, and the output of solar cells reached 2 million kilowatts in 2008. Since the second half of 2008, the financial crisis has threatened China, and photovoltaic enterprises have been deeply affected: orders have decreased and polysilicon prices have dropped. The impact of this financial crisis is profound, but solar energy, with its unique advantages, determines that its development trend has not changed and cannot change. The financial crisis is not necessarily a bad thing for the solar industry, which is in the stage of industry reshuffle, but has practical significance to promote the rapid upgrading of the industry. In addition, some measures implemented by the central government are aimed at stimulating domestic demand, rural economic development, and the development of small and medium-sized enterprises, which is very beneficial to the development of solar heat utilization industry.

Under the financial crisis, China introduced the "solar Energy roof project" in March 2009, and on July 21, 2009, the Ministry of Finance, the Ministry of Science and Technology, and the National Energy Administration jointly announced the launch of "Golden Sun" demonstration project in our country. These policies will promote the development of the domestic solar power market. Under the strong policy guidance of the Chinese government, the photovoltaic industry has not only made domestic enterprises see opportunities, but also attracted the attention of the world. The Leading Party Group of the Chinese Academy of Sciences has officially approved the launch of the solar energy Action Plan. The plan takes solar energy as an important energy source around 2050 as its long-term goal, and sets targets in three stages: distributed utilization in 2015, alternative utilization in 2025, and large-scale utilization in 2035. The solar energy industry has a broad development prospect in the Chinese market.

Both now and in the future, solar energy has a huge market prospect. The potential of solar energy is a clean, efficient and sustainable renewable energy. At the same time, using solar energy is also a wise choice. If you use solar panels to power your appliances, you'll know it when you get your monthly electric bill. Plus, solar is the eco-friendly choice -- you'll be proud to know that going solar will leave a greener world for your kids.

Three, the advantages of solar street lamps

1, the installation of the mains lighting street lamp is complex: the mains lighting street lamp project has a complex operation procedure, the first is to lay the cable, here it is necessary to carry out the excavation of the cable trench, laying hidden pipe, pipe threading, backfilling and a large number of basic engineering. Then for a long time to install and debug, if any line has a problem, to a large area of rework. Moreover, terrain and routes require complex terrain and high cost of labor and auxiliary materials. Solar street lamp installation is easy: solar street lamp installation, do not lay complex lines, as long as a cement base, and then fixed with stainless steel screws.

2. High electricity charges for mains lighting street lamps: mains lighting street lamps need to pay high fixed electricity charges, and need long-term uninterrupted maintenance or replacement of lines and other configurations, and the maintenance cost is increasing year by year. Solar road lamps free of electricity: Solar street lamps are a one-time investment, almost no maintenance costs, long-term benefits.

3. There are security risks in the mains lighting street lamps: the mains lighting street lamps will bring many security risks in the construction quality, the transformation of landscape engineering, the aging of materials, the abnormal power supply, and the conflict of water and electrical pipelines. Rural solar street lights have no safety risks: solar street lights are ultra-low pressure products, safe and reliable operation. Other advantages of solar streetlights: Green.

4. In summary, the solar street lamp has the characteristics of safety and no hidden dangers, energy saving and no consumption, green environmental protection, easy installation, automatic control and maintenance-free.
Solar lamp

Four, solar street lighting system design

1. Composition of solar street lamps

Solar street lamp consists of the following parts: solar panel, solar controller, battery, light source, lamp pole and support.

2. Introduction of working principle

Solar street lamp is a solar panel made by the principle of photovoltaic effect. During the day, it receives solar radiation energy and converts it into electrical energy output, which is stored in the battery through the charge and discharge controller. At night, when the illumination gradually decreases to about 5lux and the solar panel open-circuit voltage is about 4.5V, the charge and discharge controller acts after detecting this voltage value. The battery discharges the lamp cap. After 12 hours of battery discharge, the charge and discharge controller acts and the battery discharge ends. The main function of the charge and discharge controller is to control the opening and closing of the street lamp, while protecting the battery and extending the service life of the battery.
Schematic diagram of solar street lamp system

Schematic diagram of solar street lamp system


3. System design

3.1. Overall design

According to the "Lighting Design Standard for Industrial Enterprises" and "Urban Road Lighting Design Standard", the average illuminance of main road in the factory area is 12lux with 0.35 evenness, the average illuminance of secondary road is 8lux with 0.35 evenness, and the average illuminance of branch road is 5lux with 0.3 evenness. The design fully takes into account the short sunshine time in winter, and we take a number of measures to ensure 100% lighting rate throughout the year. Specific aspects are as follows:

A. We have increased the output power of solar panels. Under normal circumstances, 150WP*2 solar panels can work normally for 90W light source. In order to ensure 100% lighting rate throughout the year, we added the complementary function of mains power for this project, which can automatically switch to mains power supply when the battery is under voltage.

B. Combined with the capacity and voltage of a single cell of cascade battery, we matched a single 116AH cell to form a battery pack with 6 series and 1 parallel. The actual standard capacity is 22.2v116ah.

Design effect

1. illumination

The maximum horizontal illuminance is 20Lux;

The minimum horizontal illuminance is 5Lux;

The average horizontal illuminance is 12Lux;

2. Color rendering index: more than 80;

3. Color temperature: 4000K.

3.2 Design of solar cell modules

Solar panels are the core part of solar street lamps, and also the most valuable part of solar street lamps. Its function is to convert the sun's radiation capacity into electricity, which is sent to the storage battery for storage. Among many solar cells, monocrystalline silicon solar cells and polycrystalline silicon solar cells are common and practical. In the eastern and western regions with sufficient sunlight and good sunshine, it is better to use polysilicon solar cells, because the production process of polysilicon solar cells is relatively simple and the price is lower than that of single crystal. In the rainy days more, the sun is relatively not very sufficient in the southern region, the use of monocrystalline silicon solar cells is good, because the performance parameters of monocrystalline silicon solar cells are relatively stable. Due to the characteristics of short average sunshine in Foshan (the calculated average hours of illumination are about 3.8H/ day), we adopted monocrystal silicon solar panels through comprehensive comparison and analysis of the local geographical environment, and solar modules with a total power of 300WP were selected to ensure that the lights could be on normally in continuous rain. To give full play to its performance and ensure the stability of the system.

3.3. Design of solar controller

No matter the size of solar lamps, a good performance charge and discharge controller is essential. The controller not only prolongs the service life of the battery, but also restricts its charging and discharging conditions to prevent overcharging and deep charging of the battery. The controller also has a temperature compensation function where the temperature difference is large. At the same time, the solar controller also has the street lamp control function, with light control, time control, complementary functions of the mains, and has the automatic load control function at night, which is convenient to extend the working time of the street lamp in rainy days.

3.4. Internet of Things module

The solar energy system adds 4G Internet of Things module to realize remote reading and control of the controller, save lamp data, and realize fault alarm and other functions.

3.5. Light poles and supports

(1) Inclination design

In order for the solar cell module to receive the maximum amount of solar radiation during the year, we need to choose an optimal Angle for the solar cell module. In recent years, the discussion about the optimal inclination Angle of solar cell modules has appeared a lot in some academic journals. The street lamp will be used in Chongqing, and the Angle of the solar module bracket will be 30 degrees.

(2) Wind resistance design

In solar street lamp system, wind resistance design is a very important structural problem. The wind resistance design is mainly divided into two pieces, one is the wind resistance design of the battery module bracket, and the other is the wind resistance design of the lamp pole. The following are analyzed according to the above two pieces:

A. Wind resistance design of solar cell module bracket

According to the technical specifications of the battery module manufacturer, the upwind pressure of the solar module can be 2700Pa. If the wind resistance coefficient is selected as 27m/s (equivalent to a category 10 typhoon), the wind pressure of the battery module is only 365Pa according to the non-viscous hydrodynamics. Therefore, the component itself can fully withstand 27m/s wind speed without damage. Therefore, the key consideration in the design is the connection between the battery assembly bracket and the light pole. In the design of this street lamp system, bolt rod is used to fix the connection between the battery module bracket and the lamp pole.

B. Wind resistance design of street lamp poles

Use the old light pole transformation, do not elaborate.

(3) Surface treatment

Use the old light pole transformation, do not elaborate.

3.6 Lightning protection grounding:

The working voltage of LED street lamp is generally 12V or 24V, which is a safe voltage, and electrical protection grounding is not done.

Vi. Investment comparison between solar lamps and ordinary lamps

According to the solar mains complementation, analysis and comparison are made according to the service life of 10 years. See the table below:
Investment comparison between solar lamps and ordinary lamps

Investment comparison between solar lamps and ordinary lamps

According to the above analysis, the one-time investment of solar energy is slightly higher than that of ordinary lamps and lanterns, but the operation cost and maintenance are greatly saved. Solar street lamps can be used for 25 years in addition to storage batteries. After 10 years, the economic benefits of solar street lamps will be more considerable, and they are fully in line with the relevant national policies of energy conservation and emission reduction, and for the benefit of future generations.


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The Future of Smart Light Poles: Illuminating Tomorrow’s Cities

Imagine walking down a street where the humble streetlight is no longer just a source of light but an intelligent, multi-functional node that enhances safety, delivers information, and contributes to a sustainable city. That’s the promise of smart light poles, and they’re more than just a cool upgrade to urban infrastructure—they’re the backbone of future smart cities.From improving traffic flow to providing public Wi-Fi, smart light poles represent the kind of innovation that blends cutting-edge technology with practical, everyday needs. Let’s explore how these futuristic light poles will transform urban living in ways that are as exciting as they are impactful.1. A New Role in Urban SafetyTraditional streetlights have always been crucial for safety, but smart light poles will take it a step further. Equipped with cameras, motion sensors, and audio detection capabilities, they’ll become active participants in keeping cities safe.For example, these poles could detect unusual activities like car accidents, loud arguments, or even a person crying for help. They could immediately notify emergency services, providing real-time video footage and location data to responders. Some smart poles could even act as emergency communication hubs, allowing individuals to call for help directly through built-in intercom systems.Beyond emergencies, they can deter crime by adapting their lighting based on activity. Imagine a dimly lit alley that brightens automatically when someone walks through it, creating a safer environment for pedestrians.2. Streamlining Urban TrafficTraffic congestion is a universal headache, but smart light poles could help alleviate this. By integrating sensors, cameras, and communication tools, these poles will monitor real-time traffic conditions and provide data to traffic management systems.Smart light poles can adjust traffic lights based on congestion levels or reroute vehicles during accidents to prevent bottlenecks. They can also relay this information to navigation apps, ensuring drivers get real-time updates on the fastest routes.Even more exciting is their role in autonomous vehicle networks. Smart poles will communicate with self-driving cars, ensuring smooth navigation through busy intersections or alerting vehicles to hazards like pedestrians crossing unexpectedly.3. Public Wi-Fi and ConnectivityIn the age of connectivity, smart light poles could double as public Wi-Fi hotspots. By leveraging 5G technology, these poles will provide high-speed internet access in parks, busy streets, or underserved areas.For cities aiming to close the digital divide, this could be a game-changer. Students, tourists, and residents alike could benefit from always-on connectivity, whether they’re streaming, working remotely, or simply looking up directions.4. Supporting Sustainability GoalsClimate change is driving cities to adopt more sustainable practices, and smart light poles are a natural ally in this effort. Many of these poles will feature energy-efficient LED lights that adjust based on environmental conditions—dim during a full moon, for example, or brighten during heavy fog.Some poles will incorporate renewable energy sources like solar panels or wind turbines, enabling them to power themselves or feed surplus energy back into the grid. In remote areas, self-sufficient smart poles could offer lighting and connectivity without the need for costly infrastructure.By reducing energy consumption and emissions, smart light poles align perfectly with global sustainability goals.5. Personalized Commercial OpportunitiesImagine walking past a smart light pole in a bustling shopping district, and the pole displays a personalized advertisement for a nearby store or restaurant. This could soon be a reality, as smart poles incorporate digital screens and AI-driven advertising algorithms.By analyzing pedestrian data (anonymously, of course), businesses can deliver highly targeted promotions to people passing by. A coffee shop might advertise a discount to a morning commuter, or a clothing store could showcase its latest collection to shoppers during peak hours.This level of personalization creates a win-win situation: businesses increase sales, and consumers receive relevant, timely offers.6. Revolutionizing Emergency Response SystemsNatural disasters and emergencies demand quick action, and smart light poles could play a critical role in coordination and response. For example, during a flood, poles equipped with water-level sensors could monitor rising waters and alert authorities before the situation worsens.Smart poles can also broadcast emergency alerts via built-in speakers or LED screens, providing clear instructions to evacuate or seek shelter. Additionally, they could act as charging stations for mobile devices, ensuring people stay connected when power grids are down.In earthquake-prone areas, poles equipped with seismic sensors could detect tremors and instantly warn residents, buying precious seconds to move to safety.7. Enhancing Pedestrian and Cyclist ExperienceSmart light poles won’t just cater to drivers—they’ll also significantly improve the experience for pedestrians and cyclists.For instance, these poles could include navigation aids for cyclists, such as LED displays showing bike routes or real-time traffic updates. Pedestrians might benefit from poles equipped with interactive touchscreens providing maps, local event information, or transit schedules.Imagine walking through a city and having access to a multilingual guide right on a pole, helping tourists explore without the need for smartphones.8. Cultural and Aesthetic ContributionsSmart light poles can also contribute to a city’s cultural and aesthetic appeal. Through customizable lighting and digital displays, these poles can enhance the ambiance of public spaces.For example, during holidays or festivals, poles can change their lighting to match the mood—red and green for Christmas, or vibrant colors during a local celebration. They can also display cultural information, such as art, poetry, or historical facts about the area.By combining function with art, smart poles will transform cityscapes into more engaging and beautiful environments.9. Boosting Public Health InitiativesHealth monitoring might not be the first thing that comes to mind when you think of smart light poles, but they could play a significant role in this area. Poles equipped with air quality sensors can monitor pollution levels and share this data with city authorities and residents in real time.Imagine receiving an alert from a nearby pole advising you to avoid outdoor exercise due to high pollution levels—or directing you to a less polluted route for your morning jog.During pandemics, smart poles could even serve as temperature scanning checkpoints, helping to identify areas with potential outbreaks.10. Future-Proof Communication InfrastructureThe rollout of 5G networks is just the beginning. As communication technologies continue to evolve, smart light poles will serve as scalable infrastructure for future innovations.Their modular designs will allow for easy upgrades, whether it’s for deploying 6G networks or supporting entirely new types of wireless communication. By acting as a flexible foundation, smart poles will ensure cities remain technologically competitive for decades to come.The Road AheadThe beauty of smart light poles lies in their versatility. They aren’t just about lighting streets—they’re about creating safer, smarter, and more sustainable communities. As cities around the world invest in these technologies, we’ll see a future where urban infrastructure does more than serve—it interacts, adapts, and supports.But like all innovations, challenges remain. Privacy concerns, cost barriers, and integration hurdles must be addressed. However, with proper regulations and collaboration between governments, tech companies, and citizens, these obstacles are surmountable.Smart light poles represent the kind of innovation that gets us excited about the future. They’re proof that even the simplest parts of our cities can be reimagined to create a better world.So, the next time you see a streetlight, take a moment to think: What could it be doing for you tomorrow?
2025.01.08
The innovative integration of smart light poles + drone inspections is used in low-altitude economy

The innovative integration of smart light poles + drone inspections is used in low-altitude economy

With the continuous advancement of smart cities and the rapid development of low-altitude economy, the innovative integration of smart light poles and drones has become a field that has attracted much attention. Low-altitude economy refers to a variety of economic activities carried out using low-altitude airspace. As one of the new digital, informatized and intelligent infrastructures, smart light poles, combined with drone technology, not only provide important information collection and transmission nodes for the low-altitude economy, injecting new vitality, but also further improve urban management. efficiency and open up more commercial applications.1. The innovative integration of smart light poles + drones. Smart light poles serve as lifting “airports” for drones.Smart light poles can integrate drone take-off and landing platforms to provide a safe take-off and landing environment for drones. More importantly, smart light poles as infrastructure are widely distributed in cities. This advantage greatly reduces the cost of new drone sites and improves resource utilization. At the same time, by adding charging facilities to smart light poles, drones can be charged anytime and anywhere, further improving work efficiency.2. Data collection and transmissionUAV smart light poles can monitor and transmit a variety of information such as urban environmental data, traffic data, and people flow data in real time by integrating various sensors and communication equipment. These data provide necessary data support for drones, allowing them to perform various tasks more accurately. At the same time, various sensors carried by drones can also monitor the urban environment in real time, providing richer and more comprehensive data support for smart light poles. In addition, through the information release screen of smart light poles, drones can achieve more convenient urban management data interaction.3. Application scenario expansionThe integration and innovation of smart light poles and drones can meet the needs of different scenarios. In the field of public security, they can be used to assist police patrols, search for missing persons, etc.; in the field of agricultural environment, they can be used for pesticide spraying, crop monitoring, etc., to improve the level of agricultural refinement and production efficiency; in the construction of smart cities, they can be used To enhance the image of the city and make urban management more efficient and intelligent. Application cases of smart light pole + drone4. The application of smart light poles + drones is an innovative practice that combines advanced technology and intelligent applications. The following are some implementation cases:China's first "smart street light + drone inspection" road, Yueqing Electric City Avenue in Wenzhou, Zhejiang In July 2021, Yueqing Electric City Avenue in Wenzhou, Zhejiang became China's first road equipped with drone inspection during the construction of a smart street light project Officially opened to traffic, a small airport with drones installed on the center pole lights on Electric City Avenue serves as the take-off and landing platform for the drone automatic inspection system. By presetting the trajectory of the drone, the drone can undertake a large part of the inspection tasks in the later operation and maintenance work, mainly including scheduled inspections and emergency inspections.5. "Smart light pole + drone + Beidou", Beidou smart integrated light pole application in Quzhou, Zhejiang, ChinaIn April 2023, in Zhangshu Bay, Yancun, Yanjiang Highway (Kecheng Section), Quzhou City, Zhejiang, China, every morning and evening rush hour comes, the small iron box on the top of the Beidou Smart Integrated Light Pole automatically opens, and the drone inside takes up work. , inspect the surrounding roads once each, covering a radius of 7 kilometers along the way within 1 hour of working time. During drone inspection operations, if there is a serious congestion, the drone will hover close to observe, synchronize with the Beidou big data platform at the rear, and use the megaphone on board to cooperate with traffic control personnel to divert traffic."Smart light pole + drone application system" Shaanxi Xixian New District Energy Jinmao District Shaanxi Data collected by high-definition dome cameras installed on smart light poles built next to the platform. The standing smart light poles and equipped high-definition dome cameras penetrate into every corner of the highway, streets, parks and other areas under the jurisdiction. In the fields of municipal administration, transportation, security, environmental protection and other fields, they can provide public facility monitoring, real-time information release, smart security, and convenience for the people. Charging, emergency calling, weather and air monitoring and other functions.In summary, the integration of smart light poles and drones has shown great potential in urban management. This integration also provides more possibilities for public services. At the same time, the integration of smart light poles and drones also Promoted the development of related industrial chains. The innovative integration of smart light poles and drones in the low-altitude economy represents an important technological progress in the construction of smart cities, bringing unprecedented convenience and efficiency to urban management, public services and multiple industries. With the continuous advancement of technology and the continuous expansion of applications, this integration method will show broader prospects and greater potential. The low-altitude economy has emerged. Let us join hands to witness how the intelligent light of smart light poles and drones complement each other in this grand blueprint, and jointly create a brilliant future.
2024.05.30
Solar lawn lamp market demand analysis

Solar lawn lamp market demand analysis

Solar lawn lamp is a kind of green energy lamps, with safety, energy saving, environmental protection, easy to install and so on. Solar lawn lamp is mainly composed of light source, controller, battery, solar cell module and lamp body and other components. Under the light irradiation, the energy is stored in the battery through the solar cell, and in the absence of light, the battery energy is sent into the load LED through the controller, which is suitable for green grass beautification lighting.(1) The scale of foreign market demandIn developed countries such as the United States, Japan and the European Union, the demand for solar lawn lights has shown a rapid growth trend in recent years. Solar lawn lamp style is simple, there is no long cable, there is a battery inside, during the day to absorb daylight reserve, whenever the dusk light will be lit, emit soft light, generally can last 8h.Europe is very green, high lawn coverage. Some cities and villages in Europe are full of lawns, and many urban parks take lawns as the protagonist, becoming the best place for people to relax and entertain. In addition, the villa building lawn area is also very large. Today, with the rapid development of the solar photovoltaic industry, the utilization rate of solar lawn lights in Europe ranks among the top in the world, and solar lawn lights have become a part of the green landscape in Europe.More than 90% of solar lawn lights sold in the United States use nickel-cadmium batteries as energy storage batteries. Solar lawn lights can only use nickel-cadmium batteries with a capacity between 600 and 900m Ah. Due to the nickel-cadmium battery (1.2V) has a memory effect, which will lead to a significant reduction in the capacity of the battery without full discharge, and nickel-cadmium batteries contain toxic substances, the United States gradually began to ban nickel-cadmium batteries, which will make the United States solar lawn lamp market demand structure has changed, and the replacement demand has increased the market demand for solar lawn lamps.In Japan and South Korea, urban street planning and design, improvement projects and long-term management reflect the people-oriented design concept, quality awareness of excellence, exquisite and harmonious street landscape, functional service facilities, highly civilized public quality, in the road greening, park greening and other lawns have been widely used solar lawn lights.The annual import of solar lawn lights from China has exceeded 100 million, and this market will continue to maintain a rapid growth trend in the next few years.(2) The scale of domestic market demandSolar lawn lights are mainly used in urban lawns, including green Spaces such as squares, parks, communities, and roads. The acceleration of urbanization and the improvement of urban green space have stimulated the development of lawn production and scientific research. There are already thousands of enterprises engaged in lawn supply across the country, of which there are dozens of backbone enterprises of about 1,000 acres. The annual output of domestic lawn has exceeded 200 million square meters.(3) The growth of demand for solar lawn lamp productsChina's solar energy industry is developing rapidly, and the potential demand for solar energy products in the domestic market is also huge. In recent years, solar lawn lights are widely used at home and abroad because of their energy-saving, environmental protection, convenient installation and other characteristics, although the application of our products has not been fully popularized, but its demand potential is huge. With the further increase of urban green area, the domestic market will further increase the supply demand for solar lawn lights.
2023.10.10
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