Sensors in smart agriculture promote automation and intelligence in agriculture

With the popularization of the Internet of Things and the improvement of scientific level, smart agriculture has begun to rise, and all parts of the country have begun to vigorously develop smart agriculture. Smart agriculture relies on the Internet of Things technology to promote the development of automation, intelligence and facilitation in the agricultural field. Since then, smart agriculture has been gradually paid attention to, and it has begun to play an increasingly important role in the field of agricultural development.

1. Sensor technology in smart agriculture

Sensor technology is a high-level product of the development of modern agriculture, and it is also the technical core of smart agriculture. Under the macro-control of the Internet of Things, sensors can sense the environmental needs of different crops according to the current planting characteristics of agricultural products. By implementing intelligent monitoring on them, planting efficiency and yield can be effectively improved.

2. Sensors commonly used in smart agriculture

Smart agriculture uses sensors such as temperature and humidity, illuminance, wind speed and direction, and various gases to perceive agricultural environmental factors such as temperature, humidity, and illuminance.

1.Temperature and humidity sensor:

The use of temperature and humidity sensors in greenhouses can promote the growth of plants. Temperature and humidity sensors are important components of the IoT agricultural intelligent environmental monitoring system. When the greenhouse monitoring system is installed, the operator can operate the heating and ventilation equipment inside the greenhouse according to the real-time temperature and humidity data of the temperature and humidity sensor, which effectively solves the shortcomings of modern intelligent multi-span greenhouses, such as high operating costs and high energy consumption. The monitoring system can also set alarm values according to vegetable growth conditions, and alarm when the temperature and humidity are abnormal to remind the staff to pay attention.

2. Illuminance sensor: 

Illuminance refers to the luminous flux obtained per unit area on the illuminated surface of the object. The illuminance sensor in smart agriculture is suitable for agricultural greenhouses to detect whether the light intensity required for crop growth reaches the suitable growth condition of crops, so as to decide whether supplementary light or shading is required.

3. Wind speed and direction sensor:

 Agricultural wind speed sensors are mainly used outdoors for the detection and collection of meteorological wind speed. Sunshade nets and roll films are commonly used in greenhouses for shading and heat preservation. When the sunshade nets or roll films are unfolded, If the wind speed is too large, it will cause damage to the sunshade net and roll film, and the system will calculate and process the wind speed information sent back by the wind speed, which is used to retract the sunshade net and roll film in time under the condition of high wind speed to prevent strong wind from shading. Destruction of webs and rolls.

4. Agricultural gas sensors: 

gas sensors such as carbon dioxide and ammonia are mainly used in greenhouses and farms. They can monitor the concentration of gases in the environment in real time. By uploading to the cloud platform, the current crops can be effectively fertilized, ventilated, and ventilated. According to the plan, adjust the corresponding gas concentration to give greenhouse crops or livestock a ventilated and healthy environment, which is conducive to the growth of crops and livestock.

5. Conductivity sensor: 

It can monitor nitrogen, phosphorus, potassium and other trace elements in the soil, and determine whether to effectively fertilize the current crops by detecting the special content of nutrients such as soil in the greenhouse.