It is understood that the project is one of the key projects of the Chinese Academy of Sciences in science and technology aid to Xinjiang. It is a combination of the advanced technology of the Shanghai Institute of Optics and Fine Mechanics of the Chinese Academy of Sciences and the resource advantages of Xinjiang, which will effectively promote the development of the LED lighting industry in Xinjiang.
The project was invested and built by Shanghai Optoelectronics Technology Co., Ltd., which was jointly registered by Shanghai Optoelectronics Institute, Xinjiang Amethyst High-tech Industry Co., Ltd. and Tieqi Power Tools Co., Ltd. The project plans a total investment of 900 million yuan, divided into three phases of construction, the first phase of investment of 30 million yuan, the construction of "LED sapphire crystal growth" project. The 9 sapphire crystals that were off the assembly line were produced by 200 sapphire crystal growth and deep processing lines, each weighing 35 kg.
The name of wireless router can be separated out of two keywords: wireless and routing. Understand the technical principle behind these two words, you understand the wireless router.
Wireless is also what we often call Wi-Fi. Wireless routers can convert home broadband from wired to wireless signals, and all devices can happily surf the Internet as long as they connect to their own Wi-Fi. In addition, these devices also form a wireless local area network, where local data is exchanged at high speed and is not limited by the bandwidth of home broadband.
For example, many people have smart speakers in their homes that can be used to control various smart appliances. When you say small X small X, turn on the TV, the speaker actually finds the TV through the LAN and sends instructions, and does not need to connect to the Internet; And if you let it broadcast news, you have to get data through the Internet.
The Local Area Network we talked about earlier, also known as the Intranet, is represented by the Local Area Network (LAN) on the router, so the Wi-Fi signal is also called WLAN(Wireless LAN); The Internet we want to access, also known as the extranet, is represented on the router by the WAN(Wide Area Network).
On the Intranet, the IP address of each device is different, which is called a private address. All devices on the Internet share the same public address, which is assigned by broadband operators such as China Telecom Unicom.
The router is the bridge between the Intranet and the external network. The above mentioned IP address translation, packet forwarding, is the router routing function.
In other words, the router is the hub of the home network, and the data of all the devices must be forwarded through it to access each other or reach the external network, which means that one husband is the key and ten thousand men are not open, so the comprehensive router is also called "home gateway".
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