Application and prospect of radio

Time：2020-11-19 View：

1. Communication field
The earliest application of radio is in the field of communication. People can use radio to transmit information over a long distance for the first time. Modern wireless communication technology is more developed, and space communtication technology is becoming more and more mature. In daily life, mobile communication is indispensable. Mobile communication has experienced 1G (analog), 2G (digital) and 3G (high speed) times, and is currently in the period of developing 4G and 5G. Since the 3G era, mobile communication has really brought people to the era of multimedia communication. Web pages, music, pictures, videos, etc. can achieve a good customer experience on smart phones.

 

2. Wireless LAN
Wireless Local Area Networks (WLAN) are widely used in medical treatment, enterprise network coverage, warehouse management, catering retail, video surveillance, etc, in daily life, the identification of WiFi(Wireless Fidelity) hotspot network can be seen everywhere. In fact, WiFi is a trademark of WLANA (Wireless LAN Alliance), and WiFi is one of WLAN technical standards. The coverage radius of WiFi can reach about 300 feet (about 90m),WIAN (plus antenna) it can reach 5km.

3. Internet of Things (smart home)
In the era of rapid development of information technology, the Internet of things (loT) is about to emerge, which can literally be understood as the network connected by things, generally speaking, all objects are connected through the network. Obviously, if they are connected through the wired network, this situation is unimaginable. The Internet of Things is widely used in intelligent transportation, environmental protection, government work, public safety, safe home, intelligent fire protection, industrial monitoring, environmental monitoring, elderly care, personal health, flower cultivation, water system monitoring, food traceability, enemy detection and intelligence collection and other fields. In current daily life, smart family is one of the typical Internet of Things applications, and its application prospect is very broad.