Household intelligent lighting system design and implementation

Abstract: in this paper, the design of household intelligent lighting system, lamps and lanterns can according to indoor and outdoor lighting brightness and light color, light intensity change itself in order to achieve the degree of lighting is suitable for the human eye and color temperature, with comprehensive and detailed data analysis as a starting point, in the form of 'Internet + Internet of things', contact contains both intelligent control and manual control, through the design to improve the light components realize the transformation of old products, improve product technical practicability. Key words: Internet + Internet of things; Intelligent lighting 1 research background in electric energy of the rapid development of The Times, artificial light bright sky, constitutes a brilliant night scene. However, accompanied by the light of the problem is more and more serious pollution and resource waste. At present, how to prevent light pollution become the important environment problem. We choose from the light source of change household indoor lamps and lanterns, the implementation of household intelligent lighting control system design. 2 system design and implementation of our design implementation of main functions of lamps and lanterns is according to the light intensity change its brightness and color temperature adjustment, in order to achieve the most appropriate body of light level, and low energy consumption and long service life. We use two pieces of ST company produces the 32-bit ultra-high speed master control chip, and respectively as the upper machine and lower machine. With the development of wireless technology, adopting nrf24L01 wireless communication module for data transmission channel. The next bit machine carry photosensitive resistance and data sending module, PC with a LCD display and wireless data transceiver module. Then using photosensitive resistance and analog to digital converter, the photosensitive resistance data collected by the algorithm to 0 100% of the digital quantity interval and sent to PC through wireless module, PWM can be driven by the size of the light percentage to adjust to the size of the LED lamps and lanterns of voltage, further realize the control of the lighting, PWM control technology has become an important technology in the light adjustment, has a strong application value. LCD display with touch function allows users to interact with the system effectively, makes the switch control and personalized lighting control function, lamps and lanterns is equipped with three control terminal, consumer can be fixed in electronic screen to see light data, but can be by phone WeChat end control, can also change Settings by miniature remote control. Three ways can be implemented to control the light switch. Lighting control is divided into automatic and manual, both can be adjusted to lamps and lanterns to detect light, can be manually force change brightness, in the underlying data model, the light can also choose to lower or higher range to adapt to the physical quality of different people. In general, the above scheme from the perspective of the Internet of things, perception layer is the use of the data collection of photosensitive resistance, the network layer is the use of the wireless data transmission module, the application layer is the light of data gathered through algorithm and PWM technology to realize the function of automatically adjust the brightness. Three application scenarios in order to reduce unnecessary lighting, in strong sunlight can use photosensitive automatically adjust LED lamps and lanterns that move light. The role of the photosensitive element is feeling around the sun, the stronger if the sun will output a PWM signal to the LED lamps and lanterns, all close to the sun dim their brightness. A signal generator can be adjusted by a lot of LED lamps and lanterns that move light, as long as these lamps and lanterns of constant current driver with PWM dimming control interface. The dimming system itself efficiency is as high as 92%. This automatic adaptive light is any energy saving fluorescent lamp, energy-saving lamp, high-pressure sodium lamp and so on gas discharge tube can not realize, and is the LED lamps and lanterns is best. We designed home lighting intelligent control system can provide different modes of illumination, set up a variety of mimicry, by dividing different environment, different USES to set the brightness range. Medical studies show that the visual system to the outside world light environment of tone information to the brain that affect People's Daily activities. Japanese scholars used, for example, 50 lx incandescent and 1000 lx of red, green, blue three kinds of fluorescent lighting on the person before sleep, found in incandescent and fluorescent lighting, red people more easily into deep sleep state. Lighting design should have a proper illuminance value, illuminance value is too low, cannot satisfy the needs of the people's normal work, study and life. Illuminance value is too high, easy to make the person produces fatigue, the influence is healthy. According to GB50034 - 2013 'residential building lighting standards for room illumination and made specific provision. In order to reduce unnecessary lighting, in strong sunlight can be used in a photosensitive automatically adjust LED lamps and lanterns that move light. The role of the photosensitive element is feeling around the sun, the stronger if the sun will output a PWM signal to the LED lamps and lanterns, all close to the sun dim their brightness. A signal generator can be adjusted by a lot of LED lamps and lanterns that move light, as long as these lamps and lanterns of constant current driver with PWM dimming control interface. The dimming system itself efficiency is as high as 92%. This automatic adaptive light is any energy saving fluorescent lamp, energy-saving lamp, high-pressure sodium lamp and so on gas discharge tube can not realize, and is the LED lamps and lanterns is best. In the same way, with the night under the condition of the ambient light is dark, automatically adjust the brightness of lamps and lanterns, choose the most suitable for the human eye light intensity. And according to GB50034 - 2013 'residential building lighting standards for light source color standard, choose the most suitable light color. 4 conclusion we design of household intelligent lighting control system, the basic intensity of illumination, and create a good lighting art under the premise of also give full consideration to different lighting light environment on people's physical and psychological effects of both, according to season, age, gender, health, and regional differences of intelligent, personalized design, designed a vivid and rich humanity lighting light environment. Editor: li jie