We have been confused on the development of intelligent lighting products. Is there any other development path between systematic intelligent solutions and single-lamp intelligent solutions? The modular area intelligent solution proposed by Longview Optoelectronics is one of the attempts. It is especially suitable for places where large spaces are synchronized and dimmed, such as office space, stadiums, theaters, underground parking lots, and some factory lighting. In the future development direction of LED lamps, especially in the development of office lighting products, we put forward some insights and concepts. In the field of intelligent lighting, a lot of dimming and color temperature are involved. We put forward the concept of balanced body illuminance, and in the product Used in the design.
First, why do you need intelligent lighting?
Through the intelligent control system, you can realize the beautiful scenes of imagination, make life more comfortable and beautiful, and at the same time play the role of low carbon, energy saving and environmental protection. The current intelligent control applications mainly include: LED outdoor scene intelligent control application, LED home scene intelligent control application, LED office environment intelligent control application. In the past few years, Longview has made some attempts in smart LED office lighting, and has done some projects in China and abroad. For example, the implementation of the National CPPCC Wenshi Museum intelligent lighting project in China, as well as the overall intelligent transformation of Shenzhen Hai Purui (002399, shares it) Pharmaceutical Co., Ltd. office building.
The existing mainstream control methods are basically based on system support, including controller, bus structure, module and intelligent lighting combination. The dedicated bus including DALI/DSI/DMX is a relatively mature system lighting intelligent lighting solution. So, is there a third path beyond the single-lamp smart and systematic intelligent solution? We are also trying to find this third path. However, there are several obstacles to the promotion of intelligent lighting at present: first, the need for system support, construction is relatively difficult; second, the system cost is relatively high, most users are difficult to accept; third, professional technicians are required for debugging.
Second, modular area intelligent solutions
Lifeview proposes a modular area intelligence solution that addresses regional lighting, or single-lamp intelligence, or system intelligence. For example, in an office environment, each switch usually controls not a single lamp, but a group of lights that control the set of lights as a partition or a lighting classification. At the same time, the concept of centralized power supply scheme was introduced in office lighting, which is also a relatively successful attempt.
1. Integration of lamps and light sources helps reduce costs and improve heat dissipation
The relatively mature market for LED lamps is basically a substitute for the light source market. For example, many manufacturers now produce fluorescent tubes, bulbs, and LEDs as light source products that have been accepted by most consumers, and will become more and more mature after the market is replaced. And the amount will be very large, but as a simple alternative to the traditional light source, and can not play the full advantages of the LED, according to the theoretical life of the LED calculation, it can really reach 50,000 hours. The life of the lamp housing and structural components may be shorter than the life of the light source, and the lamp housing may be broken earlier than the light source, so the integration of the lamp and the light source can save cost while improving the efficiency of heat dissipation. In the past few years, many of the single lamps used for office lighting have adopted the outer casing of aluminum alloy, which directly attaches the light source and the light bar to the top, and has good heat dissipation and simple structure.
2. Power is a key component of the technology and cost of the luminaire
The highest technical content in the luminaire is the power supply, and the safety inspection is only related to the power supply (the power supply and the luminaire are separated). Therefore, after the driving power source and the luminaire are separated, different powers of different powers, different functions, and the same luminaire can be combined to form different products. In terms of cost, the driving power supply accounts for 30% to 40% of the total cost of the office grille lamp. Therefore, how to reduce the power supply cost is very important.
3. In business lighting, especially office lighting, a high-powered power supply combined with multiple lamps will become the future direction of development.
Such as: 1 drive 1, 1 drive 2, 1 drive 4, 1 drive 8, etc., this structure has several advantages: First, the economy is good, the power supply is higher, the cost per watt is lower. Such as: 18W low-power power supply costs about 28 yuan (equivalent to 1.55 yuan / W), 600W power supply cost is only 390 yuan (equivalent to 0.65 yuan / W). Second, the greater the power supply, the higher the life and reliability. The low power supply has poor heat dissipation and the electronic components are too compact, especially the electrolytic capacitor is afraid of heat. Third, the greater the power supply, the higher the conversion efficiency. For example, an ordinary 20W low-power power supply usually has an efficiency of 80%, and a high-power power supply of 300W or more is usually 90%. There is still a 10% energy saving advantage between the two.
4. Advocate single lamp and combined intelligent solution and standardized module structure
It is understood that in the choice of intelligent lighting solutions, we advocate constant voltage power supply 24V or 48V output, and then directly connected to a smart module, connected to the dimmer, combined sensor, including dimming color switch, to achieve some functions and then Then connect the smart lights. The concept of 48V is rare in China. Most of the products used in China are 12V to 24V. We especially recommend the 48V solution. Because there is an international DC home appliance alliance, the DC home appliance alliance recommends two voltage standards. DC350V, one is DC48V.
The current AC220V voltage standard was actually established more than 100 years ago. Based on the technical conditions at the time, the AC power supply scheme was proposed. Today, a large number of household appliances use DC, including air conditioners, televisions, and computers. First, the exchange became a direct current, so now the DC home appliance alliance particularly emphasizes the future DC home, which is DC350V and DC48V. DC350V is used for high-power appliances, such as air conditioners and washing machines. 48V is mainly used on some low-power appliances. Whether the LED lamp belongs to low power or high power is not sure, but because the power of the LED lamp itself is not too large, whether it is low power or high power, it should be selected to meet the standard voltage, which may be a future one. trend. In addition, the photovoltaic power supply is also DC output, and their application will also be beneficial to the DC power supply scheme of the LED light. It can be used simply and at a very low cost. Recently, in the space of the underground parking lot, attempts have been made to directly introduce photovoltaics into the ground, and the cost is reduced and the efficiency is relatively high.
Third, how to achieve intelligent office lighting
Smart lighting is now a standard that was developed in the late 1990s, when wireless control solutions were not particularly popular. In fact, including WiFi, USB, Bluetooth technology can be used in smart lighting, including power supply manufacturers are doing different solutions to adapt to future wireless intelligent solutions. In fact, the smart module is built directly into the power supply, and the system becomes very complicated. At present, there are many types of power supplies, constant current, constant voltage, and WiFi. I believe that the power supply should be a simple power supply in the future. The technology of constant voltage power supply is very mature and the price is very cheap. When wireless control is required, a wireless intelligent module can be externally connected and then converted into an internal small bus. This bus is based on the experience of the fire alarm system accumulated by Longview for more than 20 years. It is a non-carrier, baseband coded, low cost solution. There are hundreds of thousands of projects in use at home, and the cost is very low. The lighting system application can be used for reference in the future.
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