Where is the core technology application of the Internet of Things?

Big data is long-distance, using 4G network.

In the network layout, the long-distance network is directly connected to the base station, and there is no need to arrange network nodes by itself. However, a short-distance network needs a network node, which first transmits the terminal data to the node, and then the node accesses the WAN. Long-distance transmission is more expensive and consumes more power than short-distance transmission. Reasonable use of near-far collocation can effectively reduce the cost of IOT terminals.

For example, the original * * * bicycle is unlocked by using the 2G network, which requires a long data connection or the use of downlink SMS to unlock it, with high power consumption and high cost. The downloaded * * * bicycle gave up the remote unlocking and directly used the Bluetooth of the mobile phone to unlock the bicycle, which saved the data flow, reduced the power consumption and improved the unlocking speed. Yingneng electric bicycle intelligent charging station is also a high-tech product of the Internet of Things, which adopts the latest narrowband communication technology to lead the technical height of electric bicycle charging equipment.

The design of cloud service, cloud server and APP of the Internet of Things are basically the same as the Internet. JAVA, PHP and ASP can all be used to do the background processing of the Internet of Things. The mobile Internet is a "person-server-person" architecture, and the Internet of Things is a "thing-server-person" architecture, which are essentially the same. Terminal devices of the Internet of Things also use Internet protocols such as TCP, HTTP and MQTT to connect to the server.

The usage scenarios of decentralized use and centralized technology networking are very consistent: acquisition+transmission+calculation+display. The Internet of Things terminal collects data and transmits it to the server, which stores and processes the data and displays it to users.