In recent years, the new light source represented by LED is relying on its high efficiency, energy saving and environmental protection features to continuously play the functional and intelligent lighting advantages. At the 2015 China (Shanghai) International Semiconductor Lighting Application Technology Forum, which was opened today, an LED lighting technology that can realize wireless Internet access has attracted attention.
Li Xiaozhi, assistant director of the Shanghai Semiconductor Lighting Engineering Technology Research Center, told the author that as long as a module similar to a wireless router is added to the LED light bulb, WiFi relay can be realized for data transmission. Since the principle of light and radio wave propagation network signals is basically the same, a common LED bulb is equipped with a chip having the same function as a router, and it controls millions of flashes per second, and the light indicates 1 and the data representing 0, binary is extinguished. It is quickly encoded into a light signal and transmitted efficiently. Although the human eye is not aware, the sensor can receive these changes. With this feature, you can quickly surf the Internet by lighting up a light in our daily life.
Current radio signal transmission equipment has many limitations and relies mainly on routers. In contrast, the bulb is more space-constrained and does not require line connections. Especially in China, energy-saving and environmentally-friendly LED light sources are also replacing traditional incandescent lamps on a large scale. LED bulbs look magical and convenient. Can it enter thousands of households like WiFi, or even replace WiFi? Li Yuzhi told reporters that since the lighting Internet has not yet developed into an industrialized stage, the price is slightly more expensive. For example, the three light bulbs with Internet access function of Philips are priced at about 2,000 yuan. At present, it is only put into trial use in a few five-star hotels. Once the chip modules and equipment that are connected to the Internet enter the industrialization stage, the price of LED Internet access will drop significantly.
In the future, the R&D team will also consider installing biometric sensors on the LED bulbs that can be accessed on the Internet. The use of a single lamp to realize the Internet of Things in the entire home environment is just around the corner.
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