Digital control technology helps home smart lighting

LED lighting sources have many advantages such as power saving, high efficiency and easy integration. However, LED lighting applications actually have less variation in dimming, and the control circuit is relatively complicated and costly, but with linear driving schemes and digital tuning. The peripheral applications such as light and lighting control gateways are becoming more and more mature. Integrating intelligent lighting applications with intelligent applications and situational dimming is no longer a distant dream. With the development of LED lighting sources, the price of related components and terminal products is becoming more and more mature. As the decline continues, users' acceptance of LED lighting applications continues to increase, attracting more manufacturers to compete in the development of light source products, and further extending the product development reach to the LED intelligent lighting application market. Especially in the LED light source linear drive, optoelectronic structure integration design, digital dimming design and other related solutions gradually in place, coupled with low-power wireless transmission technology, Wi-Fi wireless communication technology and other mature solutions integration, development for home, construction and public lighting The application of intelligent lighting products is no longer a difficult task, and it also opens up new products for the operators who invest in LED lighting applications.
Smart grid extension intelligent lighting applications are especially focused on smart grid issues. SmartLighting can also be used as an extension of the application service of smart grids. And adhere to the energy-saving and environmentally friendly application environment. Compared with traditional lighting applications, such as traditional lamps, incandescent bulbs, fluorescent lamps, the energy efficiency of traditional light sources is low, and the connection of smart gateways requires complex D/A conversion, which will lead to intelligent light source control. The cost of the material of the gateway is greatly increased, and the high-load circuits and components that drive the traditional lamps are also depleted. The practicality of introducing intelligent lighting is limited.
On the contrary, LED lighting application light source is different, LED drive circuit is relatively simple, technology integration can easily combine communication, automation control, environmental sensing application functions, relatively low in technical development difficulty, drive circuit integration will be more The traditional lighting design scheme is more concise and practical, and the convenient integration of intelligent mobile phones and tablet computer App control terminals has become the mainstream selection scheme for the development of intelligent lighting applications.
Intelligent lighting standards still have to be established but it is a pity that smart lighting applications currently have no standards to follow in the lighting standards and control Netcom platforms, even the recent National Electrical Manufacturers Association (NEMA) and the International Electrotechnical Commission (International Electrotechnical Commission; Standards organizations such as IEC have put into the development of standards for intelligent lighting systems, but the technical prototypes, functional/safety requirements and other specifications still need to be continuously worked. Although the related functions of communication and automatic control can guide the industry-related technologies to move toward common goals, The intelligent lighting industry and the Netcom industry have brought new business opportunities, but in fact it still takes time to brew.
In terms of intelligent lighting related specification planning, NEMA is currently moving faster, not only for the intelligent lighting application thinking of the lighting system, but also with the lighting control software, security and functionality and wireless communication interface required for intelligent lighting. Relevant specifications and research to avoid the development of intelligent lighting applications that cannot be cross-platform systems, so that development products can also have perfect verification and compatibility standards. In addition to NEMA's active expansion of intelligent lighting specifications, the IEC has also established a TC34 subcommittee for the intelligent lighting market to implement the application standards for a new generation of intelligent lighting systems, and has initially completed the definition of intelligent lighting system test verification, application range, energy harvesting ( Application specification integration such as EnergyHarvesting).
The limited space of the luminaire mechanism increases the difficulty of developing intelligent lighting products. In the development of intelligent lighting, the first step is to place not only the light source, the driver, the wireless Netcom module, but also the antenna module in the limited mechanism space of the traditional luminaire. The space utilization requirement of the mechanism is quite high, especially when the system board area of ​​the intelligent lighting is extremely limited, how to improve the stability between the driver and the digital circuit does not interfere with the design, and at the same time, it can be integrated in the same lamp body in a limited space, it will be The biggest challenge in developing smart lighting.
On the other hand, in the optimization of the space utilization of LED lamps, LED drive and LED packaging technology has made a great leap forward. At present, the mainstream LEDE27 bulb design, there are quite a lot of LED bulbs adopt LED package, substrate, The driver integrated design, also known as the optoelectronic integrated solution, is also equipped with DOB (DriveronBoard) and COB (ChiponBoard) packaging technology, so that the basic LED lighting source can complete the overall lighting circuit and light source material setting in a very small space. The vacated office space can be used for the optimization of integrated control modules such as intelligent control circuits, wireless network communication circuits, and sensing circuits. Even though LED lamps are in the trend of photoelectric integration, the light source and drive can be reduced to a single-chip structure, but smart. The lighting system still needs to add communication circuits, sensing circuits, automatic opening and closing and dimming circuits. This part of the technology integrates the technical strength of the developers.
Continue to develop smart lighting products in line with the traditional lighting strategy. In fact, as with the previous LED energy-saving lighting, it needs to continue to be attached to the direction compatible with traditional lamps, so that the products will not meet consumers in the terminal sales. To purchase the cost of exclusive lamps, and to be compatible with traditional lamps, the design must be minimized in the lamp, and at the same time, in order to maintain the original high life expectancy of LED lights, the service life of electronic circuits and Netcom circuits needs to be close. At the life level of the LED light-emitting component, the life of the LED smart light fixture is too short due to control or failure of the Netcom component.
Among the operators who have invested in intelligent lighting, many companies have developed unique and interesting integrated application solutions. For example, the Hue smart luminaires introduced by Philips are actually integrated with opto-electronic design, and integrated dimming electronic circuits and wireless in the luminaire part. Network control function, and can be combined with Zigbee wireless technology application, Philips also developed a dedicated smart phone app for Hue, allowing users to use their smart phones to remotely control the lighting, opening, closing, dimming, color change, etc. The highest cost list of materials is still the driving electronic circuit of Hue. It is obvious that the key to developing intelligent lighting is still driving the cost compression and function integration of electronic circuits.
Wireless Netcom solutions have various advantages and disadvantages. The technology integration trend is another Netcom technology that can be connected and integrated with intelligent lighting. At present, there are quite a few options to choose from. It is worth noting that the Powerline Communication (PLC) communication solution is because of the terminal. It is difficult to integrate some components of the network connection into the luminaire, so it is a rare development solution in the development of this wave of intelligent lighting. On the contrary, the low-power, wireless Netcom technology has become a popular Netcom technology solution for smart lighting. In particular, the wireless communication solution has the technical advantage of being in a wireless communication environment, which eliminates the need for indoor wiring and connection for the user. The remote control device can be replaced by a smart phone, a tablet computer or a notebook computer, just like smart lighting. The program is extremely complete Hue products, the user control terminal is optional tablet computer, smart phone, desktop computer and other devices for remote control of lighting performance.
Among the many wireless Netcom technologies, ZigBee wireless technology with ultra-low power consumption and high number of support nodes is still the most popular. In addition, Wi-Fi wireless communication technology is also a communication technology solution that many manufacturers pay attention to because Wi-Fi wireless technology has It is widely used in smart devices and computer products, not only because the controller is extremely expensive but also relatively low in cost. In addition, for remote remote terminals, Wi-Fi wireless technology can also be used without adding a Netcom connection interface. Next, use the existing wireless module to enjoy smart lighting applications. In view of the fact that ZigBee and Wi-Fi technologies are favored by different developments of intelligent lighting applications, even more manufacturers directly integrate the two technologies into a single luminaire, thus attracting network operators to invest in the development of ZigBee Wi-Fi dual communication modules. The integrated wireless network solution solution integrates the luminaires with dual wireless interfaces to expand more and more convenient application scenarios for the terminal products.

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