Agricultural internet of things case

Gaocheng Town, Yixing City, Jiangsu Province is famous for breeding hairy crabs, with a water area of over 50,000 mu. However, with the continuous expansion of breeding scale, crab farmers generally report that the survival rate of crab seedlings and the quality of crab breeding are affected due to the shortage of manpower.

In the eyes of crab farmers, remote oxygenation, intelligent feeding and early warning information, which used to be tedious and tiring work, can now be realized through the Internet of Things technology platform, which is not only easier to manage, but also higher in income. Crab farmers can log in to the "Aquaculture Monitoring and Management System" through the Internet and mobile phone terminals, and know the index parameters such as dissolved oxygen, temperature and water quality of aquaculture ponds anytime and anywhere. Once the early warning of dissolved oxygen index in a certain area is found, just click "Turn on the aerator" to realize remote control.

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In Beijing Daxing Precision Agriculture Demonstration Zone, the Internet of Things "perceives" precision agriculture technology everywhere. In the central control room of the fresh cut flower production base in Caiyu Town, the greenhouse environment monitoring screen is hung on the wall. In the digital stroboscope, the temperature, humidity, light and carbon dioxide concentration in 59 greenhouses can be seen at a glance.

Suddenly, the humidity display of A 1 shed changed from green to red: 85%! The technician immediately turned on the network video and voice monitoring system, clicked on "a row of greenhouses" and issued an order: "The humidity is high, please open the air outlet and skylight!"

On the video screen, a farmer operator immediately took action.

10 minutes later, a voice reply came from the system: "All are open." On the big screen, the red number immediately drops and soon turns back to green: 70%.

"These real-time monitoring environmental indicators can automatically alarm, green means normal, and red means alarm." Dr. Chen Liping from the Agricultural Information Technology Research Center of the Municipal Academy of Agricultural Sciences introduced that this greenhouse environmental monitoring and intelligent control system "captures" various data through indoor sensors, which are summarized by the data acquisition controller, analyzed and processed by the computer in the central control room, and the results are immediately displayed on the screen. Managers can command at any time through another technology-video voice monitoring system. Li Chungui, the base manager, has been a cook for more than 20 years, but now he listens to the "system" command. He said: "I used to think that the greenhouse would be heated when it was cold and full of light when it was dark. Everyone is convinced of the scientific data under intelligent monitoring! "

For example, in the production base of fresh cut flowers in Caiyu Town, Daxing has demonstrated and popularized precision agricultural technologies in 5 towns and 6 villages, including intelligent greenhouse dolls, outdoor meteorological automatic monitoring, negative head precision irrigation, liquid fertilizer precision application, electrostatic precision spraying and so on ... 16 patented technologies, which can quantitatively monitor the temperature, humidity, illumination and carbon dioxide concentration needed by crops in different growth cycles in real time, adjust the input of water, fertilizer and medicine, and help farmers achieve more.

Case 3

In order to improve the planting efficiency, Cangshan County introduced Zhejiang's top agricultural Internet of Things technology into the modern agricultural demonstration park, and installed all the monitoring equipment of agricultural Internet of Things in the vegetable greenhouse it built. Through the agricultural Internet of Things technology, the growing environment of greenhouse vegetables such as temperature, humidity, illumination and carbon dioxide concentration was monitored in real time, and vegetables were accurately managed according to the generated intelligent monitoring information, and the greenhouse environment was automatically and manually adjusted through wireless sensors. When the temperature is high, the fan and other equipment are automatically turned on to cool down, and the soil moisture sensor automatically controls irrigation, so as to water when watering and fertilize when fertilizing, which fully realizes automation and promotes the development of organic and efficient agriculture.

Install a small wireless sensor, and the vegetables in the greenhouse will talk, feel and think. When the temperature in the greenhouse is high, it will give you an early warning, and when the soil humidity is low, it will inform you and tell you its demand more accurately.

"After using the Internet of Things, we can immediately' talk' with vegetables in the greenhouse." Entering the greenhouse, the agronomist said, "What temperature does the vegetable need? When should I water it? When should fertilization be applied? How much water is poured? How much fertilizer is applied? You don't know it completely, or you just know it roughly. But with a small sensor, it can talk, feel and think. It will warn you when the temperature in the greenhouse is high. When the humidity in the soil is low, it will inform you and tell you its needs more accurately, so that the growing environment needed by plants in the greenhouse can always be kept in the best condition. "

Agricultural technicians know something about the Internet of Things. He also pointed to an "antenna" set up near the middle of the shed, with several small boxes hanging on it, and said, "This is the sensor, which collects environmental temperature, humidity, soil temperature, moisture, illumination and carbon dioxide concentration respectively, and collects data every 5 minutes, and sends it to the upper computer system through the intelligent sensor and the wireless Internet of Things gateway embedded in 3G module." Hehe, what agricultural technicians know is quite specific.

Now, as long as the agricultural technicians sit in the office, the pages of their notebooks or computers stay on a few vegetable leaves, and zoom in with the mouse, they can clearly see a few small aphids lying on the vegetable leaves. In this way, agricultural technicians discovered the "enemy situation" through the Internet of Things remote monitoring system, which can immediately remind the agricultural workers in the shed. Take early protective measures.

Although the benefits brought by the Internet of Things to agricultural development are obvious, there is no rigid demand for its use. As a new thing, agricultural Internet of Things is in the stage of experiment and demonstration, and has broad application prospects. For traditional agriculture, the cost of the Internet of Things is too high, and it is difficult for farmers to invest in advance before seeing the benefits. Therefore, for this new thing, many farmers, even some agricultural cadres and government departments still need an acceptance process and urgently need to change their ideas. While increasing government support and establishing a subsidy system, we should establish a business model that meets the needs of agricultural development as soon as possible. Market-oriented and asking for money from the market is an effective way to promote the development of the Internet of Things.