Recently, CHZ Spain branch completed a courtyard lighting renovation project in a small town. Located in the Barcelona region of Spain, the town is one of the eight satellite cities of Barcelona and attracts a large number of tourists every year. In order to revive the urban tourism industry after the epidemic, the city government decided to renovate the courtyard lighting in the town.Previously, the classic garden lights were used, and all high-pressure sodium lights were installed, which not only had low brightness, but also had poor color rendering. After our Spanish team studied this project, we decided to use our GD01A LED courtyard lamp to participate in the bidding for this project. It stood out among many competitors (including PHILIPS, THORN, LANDVANCE and other brands) and got this project. This courtyard lamp is a classic lamp specially developed by us for the European market. It uses LUMILEDS3030 or 5050 high-efficiency lamp beads and MW (0-10V+timing dimming) drive to achieve high efficiency and energy saving. The height of the light pole is generally 4~5 meters. We use 60W power and a color temperature of 4000K, which improves the light efficiency and color rendering. For the courtyard lights on the side of the road, we use TYPE II lenses; for the courtyard lights on the square, we use TYPE V and 120° lenses to achieve the corresponding lighting effects. Our team spent nearly a week on site design and construction, and successfully completed the lamp replacement work. After the test, after on-site data collection, the test results are also satisfactory. The average illuminance reaches 45LX, which is 30% higher than the previous HID, and the power consumption is only 50% of the previous. The owner feels very satisfied with this effect.Our company has accumulated rich experience in municipal roads, and also trained a professional team, so that our brand has a high reputation and good reputation in the local area. I hope that our Spanish team will continue to work hard, get more projects, and contribute more wisdom and strength to the construction of beautiful cities in Spain.
Nowadays, LED street lights can be seen everywhere. They not only embellish the night sky, but also make a great contribution to energy conservation. However, the use of Led street lights has certain limitations, so that it has not been fully used. In order to enable LED street lights to play more roles in our lives, in the future R&D, production and promotion applications, we should solve them from the following aspects:1. The improvement of luminous flux also needs to be further improved from the basic level of high-power LED epitaxial technology and chip technology. The method of making white LEDs at home and abroad is to first place the LED chip on the packaged substrate, bond it with gold wire, and then coat the YAG phosphor around the chip, and then encapsulate it with epoxy resin. The resin not only protects the chip but also functions as a condenser. The blue light emitted from the LED chip hits the surrounding phosphor layer and is scattered and reflected and absorbed many times, and finally emitted to the outside. The peak of the spectral line of the LED (blue) is at 465 nm, and the half-value width is 30 nm. Part of the blue light emitted by the LED excites the yellow YAG phosphor layer, causing it to emit yellow light (peak value is 555nm), part of the blue light is emitted directly or after reflection, and the light that reaches the outside is blue and yellow light, that is, white light. FlipChip technology (FlipChip) can get more effective light emission than traditional LED chip packaging technology. However, if a reflective layer is not added under the electrode of the light-emitting layer of the chip to reflect the wasted light energy, it will cause about 8% of light loss. Therefore, a reflective layer must be added to the bottom plate material. The light on the side of the chip must also be reflected by the mirror surface of the heat sink to increase the light output rate of the device. In addition, a layer of silicone material should be added between the sapphire substrate (Sapphire) of the flip chip and the bonding surface of the epoxy resin light guide to improve the refractive index of the light emitted by the chip. Through the improvement of optical packaging technology, the light extraction rate (luminous flux) of high-power LED devices can be greatly improved.2. Optimized design of LED lighting equipment to improve the quality of LED use. Therefore, it is particularly urgent to study the secondary optical light distribution design of high-power LED light sources to meet the light distribution needs of large-area projection and flood lighting. Through the secondary optical design technology, the design of additional reflecting cups, multiple optical lenses and aspheric light-emitting surface can improve the light extraction efficiency of the device. The illumination direction of the traditional light source is 360°. The lamp relies on the reflector to reflect most of the light to a specific direction. Only about 40% of the light reaches the road directly through the glass cover, and the other light is projected out of the lamp through the reflector of the lamp. , The efficiency of the reflector of the lamp is generally only 50%~60%, so about 60% of the light output in the lamp is projected on the road after a loss of 30%~40%. A large part of the light output of the light source is limited to the internal heating and consumption of the lamp. Most of the light of LED lights is front light, which can achieve >95% luminous efficiency. This is one of the important characteristics of LEDs that distinguish them from other light sources. If this characteristic is not used well, the advantages of LEDs will be great. discount. Since most high-power LED lights are assembled with multiple LED chips, we need to illuminate so many light sources in different directions. We give full play to the characteristics of the integrated chip package and use lenses to solve the problem. Through optical design, different convex curves are equipped according to different needs. , Relying on the lens to distribute the light to different directions, to ensure that the large light angle can reach 120°~160°, and the small one can concentrate the light within 30°. Once the lens is finalized, the same kind of lamps can be guaranteed under the premise of the production process. The light distribution characteristics of the two have reached the same level. It is completely possible to make LED street lights meet the batwing light type required by road lighting standards through repeated trials and continuous summing up of experience. Tunnel lights, street lights and general lighting have reached the lighting requirements of their respective application places.3. Heat dissipation is a key problem that LED street lights need to solve. As we all know, LED is an optoelectronic device. During its working process, only 15% to 25% of the electrical energy is converted into light energy, and the rest of the electrical energy is almost converted into heat energy, which increases the temperature of the LED. In high-power LEDs, heat dissipation is a big problem. For example, if a 10W white light LED has a photoelectric conversion efficiency of 20%, 8W of electrical energy is converted into heat. If no heat dissipation measures are taken, the core temperature of the high-power LED will rise rapidly, when its junction temperature (TJ) When the temperature rises above the maximum allowable temperature (usually 150°C), the high-power LED will be damaged due to overheating. Therefore, in the design of high-power LED lamps, the most important design work is heat dissipation design. Due to the high brightness requirements of LED street lights, the use environment is relatively harsh, if the heat dissipation is not solved well, it will quickly cause LED aging and reduce stability. A street lamp using 250W high pressure sodium lamp, due to mature technology and good heat dissipation control, even if it works for 5000 hours, the light decay is still very small. High-power LED street lights under the same conditions, if the heat dissipation is not solved well, the light decay will be great. The heat dissipation methods of LED street lights mainly include: natural convection heat dissipation, additional fan forced heat dissipation, heat pipe, loop heat pipe heat dissipation, and uniform temperature plate heat dissipation. The forced heat dissipation method of installing a fan has a complicated system and low reliability, and the heat dissipation method of heat pipe and uniform temperature plate is costly.4. LED street lights will eventually choose modular installation and maintenance. The most high-pressure sodium lamps used on the road, the internal ballasts and other components are not easy to damage, most of the reason for not lighting is the damage of the light source, the maintenance method only needs to replace the light source. A skilled operator can perform high-level operations personally. However, LED street lights have many internal components. Except for the light source (chip), damage to other parts will cause the chip to not light up. Therefore, at the scene, it is impossible to immediately determine the cause of the damage to the LED street light. If the LED street light does not light up, the LED street light needs to be taken off and shipped back to the factory for various tests. This way of replacing LED street lights is very cumbersome. The final version of the development of LED street lighting is to develop into modularity. The light source, electricity, etc. are all replaced in accordance with the plug-in connection, so that a skilled worker can fully independently judge the cause of the damage and perform on-site maintenance.
Emerson said, "The reliable sign of wisdom is being able to find miracles in the ordinary." Thanks to the coming together, smart cities achieve sustainable development. Globally, smart city building is fast becoming a progressive asset, and global tech giants and manufacturers are important players in this new wave.”Gu Na said, “In the future, we will always meet our commitment to long-term investment in the Chinese market, respond positively to the policies and development initiatives of the Chinese government, and focus on the three areas of travel. smart, smart cities. and smart devices. Help accelerate the digital transformation process in Chinese society. "In order to solve the problem of urban development and achieve the sustainable development of the city, the construction of a smart city has become an irreversible historical trend of urban development in the world today. As China's Internet of Things development and cloud computing boom continue to heat up, the building of smart cities is a hot sign. Ministries have responded to the construction of smart cities and led the implementation.The enormous potential of the digital economy cannot be underestimated. Since the emergence of the smart city concept in 2009, more than 400 cities in China have built smart cities. With the acceleration of smart cities in various regions, the industry market is expected to expand to billions of dollars.How does street lighting show the wisdom side?Smart lighting will better locate smart cities through relevant government policies and the transformation of the LED industry.Road lighting marks the image and development of smart city construction and is one of the most densely populated municipal infrastructures. Smart street lights reduce the cost of manual inspection while ensuring normal lighting, more convenient operation and more efficient management. There are 50 million street lights in China. If the scientific management of the intelligent public lighting system is carried out, the annual electricity cost will be $ 5 billion!IoT intelligent lighting control system realizes the refinement, persistence and information management of electric power through the use of big data means such as electric visualization, efficiency analysis distribution system, load management and energy management, while generating energy. savings and reduced emissions. Improve the level of management.In the future, street lights are no longer traditional street lights, they have evolved into smart city lighting and even part of a smart city. Wisdom illumination takes the space of people and their activities at the heart of the trend of natural development, aims to achieve a more harmonious coexistence between men and nature, and makes the life and work of people more convenient and more happy.George Ko said, “As the urbanization process in China continues to intensify, traditional urban management models face many challenges. City administrators need a smarter and more efficient system to maintain and manage urban assets. " It is difficult to become a forest, and smart lighting requires the participation of a large number of companies in the construction.In the whole system construction, smart cities need technical improvement and openness. These must be carried out by large companies. The focus is on product innovation and new product development strategies. The construction by the giants of intelligent lighting will bring market opportunities to related fields. Smart Lighting companies are investing heavily in the research and development of smart lighting technologies to provide networked lighting solutions for home and building automation, smart cities and smart street lights.The definition of Feile sound is as follows: Illumination of wisdom is a fundamental concept of the Internet of Things with "lights, nets and clouds". The flagship product is “a lamp”, which uses LED lights as an integrated sensing terminal and an integrated working terminal. Emphasis is placed on the organization of a single "network" for perception and transmission, then on its integration into the context of "one cloud" management to create clouds of data, clouds of data. intelligent cloud services and services.Huawei believes that the network of hundreds of millions of lighting installations will mark the beginning of the construction of the municipal Internet of Things. From municipal lighting, smart equipments such as traffic management, environmental monitoring, municipal management and municipal lighting will be connected to create a fully connected municipal Internet of Things. The future of "smart cities" can be built.In the business mission, let the lights connect to each other through the Internet of Things, let the lights transmit information. Yannuo has always been committed to welcoming the era of the Internet of Things and the circular economy model through innovation, and technology has great potential for building a smart city. Nuofei encourages smart connected lighting and smart city development, helping to create a more sustainable, connected and liveable city.The future of technology, the demand for smart lighting market has increased significantlyBuildings and cities are getting smarter, driving smart lighting technology and market growth, and Building Energy Management Systems (BEMS) and Home Energy Management Systems (HEMS) integrate lighting. With the advent of 5G, high-capacity, low-latency network transmission will become a reality, and related network technologies and systems will gradually evolve. For example, Bluetooth mesh network, Internet of Things, Wi-Fi, etc. are all popular for smart lighting. An essential pusher.According to relevant data, global smart lighting entered a rapid development phase in 2017, with a market size of nearly 4.6 billion US dollars and an annual growth rate of 95%. With the maturity of technology and products and the spread of related concepts, the market size is expected to reach US $ 13.4 billion in 2020.The increasing demand for reduced energy consumption in residential and industrial areas is a constant feature of the development of energy efficient lighting systems. Energy-efficient LED lighting systems reduce energy costs for residential customers, thus mitigating the impact of rising tariffs on them. On the component side, smart lighting products have started to dominate the market due to the large-scale installation of lighting systems in the residential and commercial sectors.The smart city development initiative promoted by governments around the world is a major driver of the growing number of smart lighting solutions, and connected lighting systems are expected to become one of the most important pieces of infrastructure smart cities. As lighting systems continue to optimize urban energy use, self-sufficiency and the growth of the urban economy can be greatly accelerated.Between 2018 and 2024, the average annual growth rate of the outdoor lighting market is expected to exceed 25%. The main feature of the rapid growth is the increasing demand for intelligent street lighting systems around the world. Smart City projects can also take advantage of these smart devices to achieve their energy security and sustainability goals.ConclusionIn this wave of new technologies, international LED manufacturers have gradually expanded their network of smart cities. Investment in smart cities in China has reached 500 billion, and the market pie is quite big. Of course, the Chinese market has become the main concern. Many LED companies are jostling each other, but very few of them can actually be called "smart lighting".The real city, wisdom is much more than your imagination. When big data is integrated into it, the image of smart life gradually emerges and we can expect the future of a smart society.
For the customer it may be a question of which kind of street light to choose is the most profitable, we all want to buy something cheap. However, people generally know little about solar street lights. They don't know how to assess the price and quality of solar street lights.The price component of solar power street light is closely linked to its own configuration. Specific to each component, its performance and quality have a direct relationship. For example, the composition of solar power street lights is usually LED light source, solar panels are also called solar battery components, solar batteries are also called lead-free batteries (colloid-free maintenance batteries), street lights, light control + time control controllers etc, and each part will have a major impact on the whole system. Therefore, if the price of solar street lights is low, at least one or two parts of the whole system will not meet the quality requirements. It will not cause problems for electronic products in the short term, but long-term use will cause the work of the whole system. Unstable, failure or material damage.Is the longer the manufacturer's warranty period the better? Obviously not, as this is really "sheep's wool", the company's warranty costs will inevitably be included in the unit selling price. If the warranty is 5 years, the warranty cost is quite high, and if the unit price is much lower than the market price, it can only show that its quality is much lower than the market product, otherwise where will the company's profit come from? For example, let's buy a laptop and weigh 4000 yuan for two years. However, if we extend the warranty for one year, we have to pay an additional 500 yuan. Isn't that the so-called long-term guarantee? Therefore, what we want is not quality assurance we should say, this is a real product. After all, after purchasing the product, we don't expect it to be bad and let it fix later. It is not good for everyone, so it is necessary to buy the product. Look at the quality.With the initial intention of responding to the national call for energy conservation and emission reduction, CHZ Lighting designs, develops and produces the highest quality and most environmentally friendly solar street lights for satisfy customers and contribute to the development of the sector.