WI-FI stands for Wireless Fidelity, also known as the 802.11b standard. It is an industry standard defined by IIIEE for wireless network communications. 802.11b defines the use of direct-sequence spread-spectrum modulation techniques to achieve a llMbit/s rate of wireless transmission in the 2.4GHz band. With weak or disturbed signals, the bandwidth can be adjusted to 5.5Mbit/s, 2Mbit/s, and 1Mbit/bit. s.
WI-FI is a wireless network composed of wireless access points (APs) and wireless network cards. APs serve as a bridge between traditional wired local area networks and wireless local area networks. Their working principle is equivalent to that of a built-in wireless transmitter. Which is a router; wireless network card is responsible for receiving the client device transmitted by the AP signal. Therefore, any PC equipped with a wireless network card can share the resources of a wired local area network or even a wide area network through the AP.
I believe that more than 90% of current readers have connected to WI-FI through smart phones, and experienced its rapid speed. In the field of smart homes, such a high-speed wireless network connection method is also indispensable. Low-speed and low-energy ZigBee is responsible for the transmission of basic data and the release of command information. However, products such as surveillance security systems and intelligent network televisions that require large network speeds are used to achieve accurate and effective data transmission through WI-FI.
The home gateway is a major commodity form at this stage. Smart home network is another high-tech product brought to people by the information age. It uses existing computer network technology to network various home appliances and devices in the home, and provides people with a variety of rich, diversified, personalized, convenient, comfortable, safe and efficient services through the Internet. Home networking is also an important part of the entire society's informatization. Realizing the exchange of domestic and foreign family information is undoubtedly the purpose of home networking. Its implementation requires an ideal home gateway.
The current more unified view is to develop a centralized gateway. However, this is only an expectation because the characteristics of different external access networks are different. Different service providers have different business models, different existing or being developed. Network interface devices will involve many different technical or business issues, so there will be a single home gateway solution in the near future. Furthermore, although a distributed or multiple gateway solution also has many supporters, manufacturers, and service providers, it also faces the challenge of integrating gateway solutions. Ultimately, an entire home-centric gateway will provide the most effective solution for bridging external networks and home networks or devices.
The home entertainment gateway is a must-have high-end living room entertainment device for modern families. It integrates audio and video playback, games, news and information, karaoke, living services, and multi-screen interaction to meet users' needs for high-definition media content and interactive functions. In addition to the built-in applications, the home entertainment gateway also integrates application stores with a selection of popular third-party applications. Relying on the powerful management background and continuous operation capability of the equipment, the home entertainment gateway software will continue to be updated and upgraded, and the new value of the product will be continuously improved.
The highly sought after Internet TV in the home appliance market is just the product of the transition from ordinary TVs to smart TVs. In the future, TV will gradually develop into an open service bearing platform and become a user's home smart entertainment terminal. At the same time, home appliance manufacturers are shifting from a "hardware" profit model to a "hardware + content ten service" profit model, changing the profit model of the original one-time sales, and selling televisions, while providing content and services, so that the television terminal has Continuing profitability of services and generating profitability for continuous service. Under the "Triple Play" environment, smart TVs based on open software platforms will become an important carrier for triple play, and play a major role in the home multimedia information platform.
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