Application of Agricultural Internet of Things Technology in Vegetables and Greenhouses

Agricultural Internet of Things greenhouse monitoring

Vegetable greenhouses and greenhouses are mainly used in seasons that are not suitable for growing vegetables. They simulate the natural conditions for the growth of vegetables and provide a suitable environment for the growth of vegetables. However, this environment cannot be realized by the need to introduce agricultural IoT greenhouse environmental monitoring technology to solve vegetable growth. The controllability of the environment has achieved the goal of increasing the efficiency of vegetable production.

I. Construction of control system for greenhouse greenhouses:

A complete greenhouse greenhouse automatic control system includes data collection, data transmission, data analysis and production operating systems. Each part has different functions in the production of vegetables. These functions combine to complete the whole process of vegetable production.

Second, vegetable greenhouse greenhouse Internet of Things automatic control system mainly includes the following sub-system parts:

1. Data Acquisition System:

The data acquisition system consists of wireless sensors, power supply, or storage batteries. The monitoring components on site include monitoring elements such as temperature and humidity, CO2 concentration, soil temperature and humidity, and soil nutrients. The data acquisition system is mainly responsible for the collection and control of light, temperature, humidity, soil moisture, and video data inside the greenhouse.

2. Data transmission system:

The data transmission system consists of data acquisition sensors, including temperature sensors, humidity sensors, light intensity sensors, photosynthetic active radiation sensors, soil temperature and humidity sensors, CO2 sensors, and wind direction sensors. Transmission mode: The external network transmits on the basis of IP network technology and GPRS communication network; the internal network uses short-range, low-power ZigBee wireless communication technology. In the ZigBee-based wireless transmission mode, the data collected by the sensor is transmitted to the central node through the ZigBee sending module. At the same time, the control instructions transmitted between the user terminal and the integrated controller are also transmitted to the central node. The central node then passes through the edge gateway. Sensor data and control instructions are sent to the business platform of the upper computer. Technicians can access the host computer system business platform through wired network/wireless network, real-time monitoring of sensor parameters in the greenhouse, and control of relevant equipment in the greenhouse.

Soil temperature and humidity sensor

3. Data Analysis System:

The data analysis and display section includes computers, software, wireless receiving modules, and alarm systems. Different control schemes are implemented based on different environments, crops, and growing seasons.

4. On-site environmental control system:

The irrigation control system included in this subsystem can control the drip irrigation and micro-spraying system to realize remote automatic irrigation. The soil environment monitoring system uses soil moisture sensors, soil moisture sensors, etc. to obtain soil moisture, humidity and other data in real time. The control system and the temperature and humidity control system provide environmental information; the temperature and humidity monitoring system can use high-precision sensors to collect the growth environment information of crops and set environmental index parameters. When the environmental index exceeds the parameter range, the fan cooling system and plumbing can be automatically activated. Heating system, air circulation system, etc., to adjust the temperature and humidity of the environment.

The use of the vegetable greenhouses built by the farmers' trade Internet of Things can provide effective techniques for controlling the growing environment of vegetables for greenhouse cultivation, so that the vegetables can obtain suitable growth environment and increase production to realize cross-season vegetable cultivation.