What are the key technologies of the Internet of Things?

1) Radio Frequency Identification Technology

   Radio Frequency Identification, commonly known as "electronic tag", is the main source of information collection in the Internet of Things. Attaching an electronic tag to a target item allows you to track and identify it globally.

   Example: A car with an electronic tag can be automatically identified when it passes through a highway toll station without parking fees, which greatly improves the speed and efficiency of driving.

2) Sensor Technology

   Sensors can perceive the real world through sound, light, electricity, heat, force, displacement, humidity and other signals, providing the most original information for the Internet of Things.

   Example: The temperature sensor can sense the water temperature in the fish pond, and the pressure sensor can sense the force on the bridge.

3) Transmission Technology

   Transport technology can be used to exchange information between objects, people and objects in the Internet of Things.

   Example: Transmit information perceived by the Internet of Things through the Internet, mobile communication networks, satellite communications, etc.

4) Information Fusion Technology

   Information fusion technology is used to analyze and process all kinds of perceived information collected in order to achieve real-time monitoring, information management, real-time warning, intelligent decision-making and other functions.

   Example: By fusing the perceived water temperature, PH value, dissolved oxygen and ammonia nitrogen in the fish pond, the water quality in the fish pond can be evaluated comprehensively in real time.