In traditional agriculture, people mainly obtain farmland information through manual measurement, which often consumes a large amount of manpower. By using wireless sensor networks, the Internet of Things can effectively reduce human consumption and impact on farmland environment, and obtain accurate crop environment and crop information.
With the application of IoT technology in the agricultural field, our agricultural production has become more intelligent and automated, and smart agriculture will also be widely used. By using the benefits brought by advanced technology, we will actively select an intelligent system suitable for our own agricultural production to increase the output of agricultural products and increase profits.
First, three major agricultural Internet of Things system
Agricultural expert intelligent system
Taking the development and utilization of intelligent expert system as the forerunner, the paper analyzes and judges the environmental data such as climate, soil and water quality, systematically plans the distribution of parks, rationally selects agricultural products, and scientifically guides ecological rotation.
Agricultural production control system
Based on the Internet of Things technology, real-time collection of information such as lighting, temperature, humidity and other agricultural products on the agricultural production site through various wireless sensors, and remote monitoring of the production environment.
Organic agricultural product safety traceability system
By adding RFID electronic tags to the agricultural products themselves or shipping packages in the production process, and continuously adding and updating information in transportation, warehousing, sales, etc., the safety traceability system for organic agricultural products is established.
Second, 4 major Internet of Things features
Real-time monitoring
Real-time collection of air temperature, air humidity, carbon dioxide, light, soil moisture, soil temperature, outdoor temperature and wind speed in the greenhouse (greenhouse) through the sensing device; data is transmitted to the service management platform through the mobile communication network, service management The platform analyzes and processes the data.
Remote control function
For the greenhouses with better conditions, electromechanical equipment such as electric roller blinds, exhaust fans, electric irrigation systems, etc. can be installed to realize remote control functions.
Farmers can log in to the system through mobile phone or computer to control the switch of water valve, exhaust fan and roller blind in the greenhouse. The control logic can also be set. The system will automatically open or close the roller blind, water valve and fan according to internal and external conditions. Waiting for large shed mechanical and electrical equipment.
Query function
After the farmer uses the mobile phone or computer to log in to the system, he can query the environmental parameters, historical temperature and humidity curve, historical mechanical and electrical equipment operation records, historical photos and other information in the greenhouse (greenhouse) in real time. After logging in the system, you can also query the local agricultural policy. , market conditions, supply and demand information, expert notices, etc., to achieve targeted comprehensive information services.
Warning function
The warning function must be pre-set to the upper and lower limits of the appropriate conditions, which can be modified according to changes in crop types, growth cycles and seasons.
When a certain data exceeds the limit, the system immediately sends a warning message to the corresponding farmer, prompting the farmer to take timely measures.
Third, five practical application cases
Picking control system
Generally speaking, the area planted or cultivated in agricultural parks far exceeds the area cultivated by traditional farmers, and traditional agricultural production mainly determines the harvest time of crops based on manual observation and experience. This method often misses the best harvest time and reduces agricultural products. The value of goods affects the economic benefits of enterprises.
Set up the IoT harvesting control system, which can automatically predict the harvest period of crops through set harvest time and polling (inquiring detectors in turn), predicting the application of the system will significantly increase the value of its products and reduce the cost of labor consumption. To improve the scale of production management capabilities of enterprises.
Processing control system
At present, domestic agricultural products enterprises mostly use semi-manual and semi-machines for processing crops and aquaculture products, and artificial occupation is dominant.
Due to the uneven processing level of workers and the insecure processing environment, the quality of products is not guaranteed and microbial contamination is likely. The establishment of processing control system can reduce the manual direct processing, avoid artificial pollution, unify the production and processing technology, effectively improve production efficiency and reduce labor consumption through the control of automatic production technology such as cleaning, fresh-keeping and drying.
Acquisition, circulation control and sales control system
Aiming at the demand for acquisition, circulation and sales involved in the process of post-production commercialization of agricultural products and the acquisition of market information, the acquisition control system, circulation control system and sales system are constructed to obtain information on the price changes of agricultural products and market supply and demand in various links; At the same time, it can track all aspects of agricultural products and ensure the safety of agricultural products in the process of circulation.
Video surveillance system
Combine video surveillance system with planting and breeding supervision, pest and disease early warning and prevention, processing control and other systems to realize visual tracking of agricultural production, processing and circulation, facilitate technicians to observe and take effective measures in time to ensure production, processing and circulation. Going smoothly.
Traceability system
The excessive amount of residues of agricultural products such as chemical fertilizers and pesticides has occurred. Some of the only profit-seeking banned hormones and drugs are the primary factors that restrict the international competitiveness of China's agriculture. They are also the main factors causing large fluctuations in agricultural product market prices and market disruption. one.
The establishment of traceability information service platform, its information collection covers animal and plant seed procurement, sowing (breeding), fertilization, harvesting, processing, transportation, and access to supermarkets. At the same time, it can also introduce and facilitate third-party supervision and strengthen the right The quality management of agricultural product production process, in conjunction with effective laws and regulations, provides convenience for the inquiries of the safety of various production links of agricultural products and the traceability from the table to the place of origin.
The Agricultural Internet of Things can help agriculture save costs, improve efficiency, and change the mode of operation of traditional agriculture, which has become a booster for future agriculture. 
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