The next "killer" application for the LED industry
Nowadays, LED bulbs are not only limited to the lighting itself, but are also given more functions like dreams, enabling more innovative applications. With the rapid development of the LED industry, a series of intelligent lighting applications based on LED lighting equipment have been increasingly explored, and LED bulbs have become more intelligent and magical. The emergence of visible light communication has added it to the ranks of information messengers.
At this moment, the LED meets the visible light communication, and is waiting for the next "fantasy" journey of the LED!
"Currently, LED bulbs developed based on visible light communication technology have grown into intelligent lighting devices with multiple meanings and uses such as lighting, communication, and cross-border applications, and have ushered in a good opportunity for development." In mid-April, the 2014 Nobel Prize in Physics, Nakamura Shuji, also believed that in the future, the home lighting will be able to carry the communication signal to become the last information transmission equipment. People can even download movies and music under the streetlights. .
What exactly is visible light communication technology (VLC, also known as "LiFi")? What are the advantages of this technology? What is the current technological progress and industrialization trend? The future application prospects and how “Qian Jing†have become the focus of the industry. LEDs will now see visible light communication, and what kind of legend will be written!
WiFi technology has become more and more popular, but there are more and more people complaining about unstable wireless signals, slow Internet access, and too few WiFi hotspots. Now, there is a new technology that may solve these problems. Light bulbs have long been seen as a symbol of the inspiration of inventors' dreams. But for the German physicist Herald Haas, the light bulb itself inspired him. Haas and his team at the University of Edinburgh invented a patented technology that uses a flash of light to wirelessly transmit digital information. This type of technology is often referred to as visible light communication. Haas said: "My biggest idea is to turn the light bulb into a broadband communication device. This way, the light bulb will not only provide illumination, but also become a necessary tool." Haas believes that by adding a microchip to a common LED bulb, the bulb is made. Flashing at a very fast speed, you can use the light bulb to send data. The bulb flashes at a frequency of millions of times per second.
In this way, LED bulbs can quickly transfer binary codes. But for the naked eye, such flicker is invisible and only a photosensitive receiver can detect it. Haas said: "This is similar to sending a Morse code through a torch, but it's faster and uses an alphabet that the computer can understand."
LiFi technology is still in the laboratory stage, a patented technology invented by Haas and his team at the University of Edinburgh. This technology means that you can get a wireless internet connection as long as you have a light bulb. At present, the number of light bulbs in the world is about 14 billion. In fact, this also means that any street light can be an Internet access point. Visible light wireless communication (called LiFi - Light Fidelity) uses wireless signals to transmit information wirelessly. It is entirely feasible to encode information in the light according to different rates, for example, LED on indicates 1 and OFF indicates 0, and information can be transmitted through a fast switch. Due to the luminous intensity of the LED, the human eye does not notice a rapid change in light.
Although LiFi does have the advantage of not being disturbed by radio signals, many of its advantages are eclipsed by the fact that visible light cannot penetrate walls. This key fact makes WiFi gain a big advantage. This visibility limitation increases system security, but the minimum distance for signal reception is not known at this time. It is conceivable that people can intercept optical signals by using telephoto lenses and adjusting the appropriate optical sensors. TechCrunch said that although LiFi has been promoted as a possible airborne wireless communication technology, the widespread popularity of WiFi in most American airlines has made LiFi's application prospects on aircraft increasingly less optimistic.
The WiFi 6 Outdoor Wireless AP is a wireless access point for outdoor environments that uses the latest WiFi 6 technology to deliver higher speeds, more capacity, and better performance. The benefits of WiFi 6 Outdoor Wireless AP are described in detail and analyzed in depth below.
First, higher speed:
WiFi 6 Outdoor Wireless AP uses the latest 802.11ax standard to support higher data transfer rates. Compared to the previous WiFi 5 technology, WiFi 6 can achieve higher peak speeds, up to 10Gbps. This means users can enjoy faster download and upload speeds, smoother online gaming and high-definition video viewing experiences.
Second, larger capacity:
The WiFi 6 Outdoor Wireless AP uses OFDMA technology to divide wireless signals into multiple sub-channels to serve multiple devices at the same time. Compared to the previous WiFi 5 technology, WiFi 6 can connect more devices at the same time, providing greater network capacity. This is important for modern homes and businesses as the number of devices we have increases and the demand for network capacity increases.
Third, better performance:
The WiFi 6 Outdoor Wireless AP introduces an improved version of MU-MIMO technology that can communicate with multiple devices simultaneously. This means that users can enjoy a more stable and reliable wireless connection, whether in a home environment or an enterprise environment. In addition, WiFi 6 also introduces BSS Coloring technology, which can reduce interference between neighboring networks and improve network performance and throughput.
4. Lower latency:
The WiFi 6 Outdoor Wireless AP uses Target Wake time (TWT) technology to synchronize the wake time of the device with the time of the wireless transmission. This means the device can wake up quickly when it is needed and go to sleep when it is not, reducing latency in wireless transmission. This is important for real-time applications, such as online gaming and video conferencing, to provide a better user experience.
Five, better security:
WiFi 6 Outdoor Wireless AP introduces the WPA3 security protocol, which provides stronger encryption and authentication mechanisms to protect users' wireless networks from hackers and malicious attacks. In addition, WiFi 6 also supports more security features such as encryption for OFDMA and MU-MIMO, as well as stricter access control and user authentication.
Six, better coverage:
The WiFi 6 Outdoor Wireless AP uses more advanced antenna design and signal processing technology to provide wider wireless coverage. This is very important for outdoor environments, which can cover a larger area and meet the needs of users for wireless networks.
In summary, the WiFi 6 Outdoor Wireless AP offers higher speeds, more capacity, better performance, lower latency, better security, and better coverage. It is an advanced wireless access point for outdoor environments that can meet the needs of users for high-speed, high-capacity, high-reliability wireless networks. As the number of Wireless devices increases and the requirements for network performance continue to increase, WiFi 6 Outdoor Wireless AP will become an important part of the wireless network of the future.
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