Smart agriculture opens up the development model sensor technology has been widely used

[China Agricultural Machinery Industry News] At present, smart agriculture promotes the basic operation model in China. Simply speaking, it integrates various environmental data such as temperature and humidity and soil composition through sensor systems such as temperature and humidity sensors, and accesses the database. platform. The platform is compared to determine which data and conditions need to be adjusted, then activate the automatic control system, or open the greenhouse to supplement the light, or automatically spray water, fertilize. In this way, a cyclical planting system is formed.

Smart agriculture opens up the development model sensor technology has been widely used

Sensor equipment in greenhouse IoT planting

At present, in the research of domestic agricultural Internet of Things control technology, the Internet of Things technology is mainly aimed at the promotion of refined agriculture such as facility agriculture, aquaculture, animal husbandry, etc. It is more suitable for use in high value-added agricultural fields, such as flowers, medicinal plants, and seedlings. Breeding and so on. For field crops such as rice, the environmental factors are complex, the cost is large, and the output is low. The Internet of Things technology is still difficult to apply.

Taking Ningbo as an example, in recent years, many property and agricultural bases in the city have introduced some Internet of Things technologies, using information control to improve agricultural production efficiency.

Greenhouse intelligent control system background monitor screen

In the greenhouse of a fruit and vegetable experiment demonstration site in the city, the shed is equipped with a temperature and humidity sensor, which can be connected with the information collector. When the computer detects changes in environmental data, it will automatically prompt to start the drip irrigation equipment to water and fertilize the crops. According to the director, the transformation of these intelligent greenhouses has cost more than 1.3 million yuan before and after, and it has been used for three years. In the past, it took 20 people and it took 10 hours to water and fertilize. Now, if you have one or two people, the knife will be closed for four or five hours. The field manager has calculated that the intelligent facility can recover the cost in four or five years, and in the long run, it is relatively cost-effective.

Sensor monitoring system equipment in aquaculture

At the same time, in the promotion of Ningbo's smart agriculture, there are also some farming owners who admit that large investments do not necessarily have high output, and it is not easy to use Internet of Things technology.

Lao Huang is the owner of an aquaculture farm in Ningbo. Three years ago, he spent more than 1 million yuan and introduced a smart aquaculture system. An information integrated equipment box is placed on the surface of the fish pond to connect sensors for monitoring water temperature, dissolved oxygen, and pH. Once the measured data has changed, Laohuang receives the alarm information on the mobile phone, and can remotely control the aerator and other equipment through the network and dispose of it in time.

Pond cultured IoT sensor

Lao Huang said that the system is quite designed, but it has been out of service for more than a year. The fundamental reason is that the sensor and controller can not withstand the high temperature and high humidity of the farm, and the harsh environment of strong seawater corrosion, which is always broken, the measured data is not accurate, and the subsequent maintenance cost is high, and then has to be abandoned.

It can be seen that at present, domestic research on the control technology of agricultural Internet of Things, the level of related hardware equipment manufacturing is still relatively backward. The same sensor, imported parts can be used for three or four years, more than double the life of domestic production. In addition, like the soil test sensor, the real need to do well, the technical requirements are very high, there are few domestically available, the equipment quality bottleneck needs to break through as soon as possible. In addition, the high price and maintenance costs are also a hurdle for the IoT agriculture to take root.

(Original title: Domestic Agricultural Internet of Things Promotion and Application Status of Sensor Technology)