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The development status and problems of smart agriculture
Since ancient times, my country has been a large agricultural country. Agriculture has always been the lifeblood of the national economy. The rapid development of agriculture is directly related to social stability. my country's agricultural production labor force has always been sufficient, but due to farmers' ignorance of facility agriculture and a relatively low proportion of agricultural technicians, a large number of new agricultural technologies cannot be promoted and applied in time in my country. In this context, the agricultural economy as a whole shows a trend of irrational allocation of labor resources, unscientific production methods, and unadvanced labor methods. With the popularization of the Internet of Things and the improvement of the 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 convenience in the agricultural field. As a result, smart agriculture has been gradually valued and has begun to play an increasingly important role in the field of agricultural development. 1. Sensor technology in smart agricultureSensor technology is a high-end product of the development of modern agriculture, and it is also the core of smart agriculture technology. Under the macro-control of the Internet of Things, sensors can perceive the environmental needs of different crops according to the current agricultural product planting characteristics. By implementing intelligent monitoring on them, it can effectively improve planting efficiency and increase yield. 2. Commonly used sensors in smart agricultureSmart agriculture uses sensors such as temperature, 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 temperature and humidity sensor used in the greenhouse can promote the growth of plants. The temperature and humidity sensor is an important part of the IoT agricultural intelligent environmental monitoring system. After the greenhouse monitoring system is installed, the operator can operate the heating and ventilation equipment inside the greenhouse based on the real-time temperature and humidity data of the temperature and humidity sensor, effectively solving the shortcomings of high operating costs and high energy consumption in modern intelligent multi-span greenhouses. The monitoring system can also set alarm values u200bu200baccording to the growth conditions of vegetables. When the temperature and humidity are abnormal, it will alarm to remind the staff to pay attention. 2. Illumination sensor: Illumination 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 has reached the appropriate growth condition of the crop to determine whether it is necessary to supplement light or shade. 3. Wind speed and direction sensor: The agricultural wind speed sensor is mainly used outdoors to form the detection and collection of meteorological wind speed. In greenhouses, shading nets and roll films are commonly used for shading and heat preservation. When shading nets or rolls When the film is unfolded, if the wind speed is too high, it will cause damage to the shading net and the film, and the system will calculate according to the wind speed information sent back by the wind speed to recover the shading net and the film in time under high wind speeds. Prevent damage to the shading net and roll film by strong winds. 4. Agricultural gas sensors: Carbon dioxide, ammonia and other gas sensors are mainly used in greenhouses and farms. They can monitor the concentration of gases in the environment in real time, and upload them to the cloud platform to effectively fertilize and ventilate current crops. , Ventilation plan, adjust the corresponding gas concentration, 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 the nitrogen, phosphorus, potassium and various other trace elements in the soil, and determine whether to conduct the current crop by detecting the specific content of the soil and other nutrients in the greenhouse Effective fertilization. 3. Problems of smart agriculture my country’s smart agriculture sensor technology is still in its infancy, and the number of research teams is small, which cannot meet all the needs of smart agriculture development, which severely restricts the development of smart agriculture and automation. Development. In addition, sensors are relatively expensive, and most of them are only used in large-scale greenhouse environments. For most ordinary farmers, the installation of sensors has little effect on improving income. my country's smart agricultural sensor is still in its infancy, and can only simply monitor environmental elements. For dynamic data monitoring in harsh environments, there is still much room for improvement in its stability and practicability. To put it simply, the current sensors do not form a dynamic detection system for the comprehensive environment of plant growth, and the linkage is poor, and they cannot provide true sensing functions. There is still a long way to go for smart agricultural sensors in my country. To go.
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