Agricultural IoT uses a large number of sensor nodes

Agricultural Internet of Things, that is, the Internet of Things that participates in automatic control through real-time display of various instruments or as parameters of automatic control. It can provide a scientific basis for the precise regulation of greenhouses, and achieve the purpose of increasing production, improving quality, regulating growth cycle and improving economic benefits.

In the greenhouse control system, the temperature sensor, humidity sensor, PH value sensor, illuminance sensor, CO2 sensor and other equipment of the Internet of Things system are used to detect physical quantities such as temperature, relative humidity, PH value, light intensity, soil nutrients, and CO2 concentration in the environment. parameters to ensure that crops have a good and suitable growth environment. The realization of remote control enables technicians to monitor and control the environment of multiple greenhouses in the office. The wireless network is used to measure the optimum conditions for crop growth.

The general application of the agricultural Internet of Things is to form a monitoring network with a large number of sensor nodes, and collect information through various sensors to help farmers find problems in time and accurately determine the location of the problem. From the production mode of isolated machinery to the production mode centered on information and software, a variety of automated, intelligent and remote-controlled production equipment is widely used.

On the basis of the computer Internet, using RFID, wireless data communication and other technologies, construct an "Internet of Things" covering everything in the world. In this network, items (commodities) are able to "communicate" with each other without human intervention. Its essence is to use radio frequency automatic identification (RFID) technology to realize the automatic identification of items (commodities) and the interconnection and sharing of information through the computer Internet.