At this stage, my country's agriculture is still dominated by tradition. With national development, market competition, changes in demand, and the support of relevant national policies, greenhouses, greenhouses, aquaculture and other industries are required to develop in the direction of modernization, technology, and intelligence. The traditional way is faced with untimely and inaccurate grasp of environmental information, high operating costs, difficult to achieve scale, inconvenient system construction and operation, poor system compatibility, and inconvenient incremental expansion, data query, browsing a single way and many other issues.

As a large agricultural country, agricultural production occupies an important position in the national economy, and aquaculture production occupies a large proportion. At present, China's livestock and poultry breeding industry is relatively developed, but there are also some problems, such as: backward breeding concept, lack of cutting-edge modern breeding technology, and environmental pollution and other issues, compared with the breeding efficiency and efficiency of developed countries, there is still a certain gap. We should learn and learn from the excellent breeding mode and technology, focus on the introduction of agricultural Internet of things, automatic monitoring and control technology into breeding, realize the automation of temperature and humidity monitoring and management of breeding environment, and gradually narrow the gap between us and developed countries in terms of breeding efficiency and efficiency.

The agricultural Internet of things is an emerging industry, which is recognized by the world as the third wave of information revolution after the computer Internet. The application of modern Internet of things technology to traditional agriculture is to plug in the wings of traditional agriculture and promote its transformation and upgrading. Internet of things technology has been welcomed by the majority of farmers.

According to the characteristics of the livestock and poultry breeding environment, it is very necessary to use the agricultural Internet of Things livestock and poultry breeding environment monitoring system to accurately and real-time monitor the main environmental parameters such as temperature, humidity, and harmful gas concentration. Regulating the breeding environment of poultry houses can greatly improve the management efficiency of livestock and poultry houses. The application of agricultural Internet of Things technology in livestock and poultry breeding is of great significance to improve pollution and improve the quality of livestock and poultry.

Agricultural Internet of Things is a large number of sensor nodes constitute a monitoring network., through the installation of NH3, H2S, CO2, temperature, humidity and other sensors in the farm for online monitoring of environmental information, farmers set a threshold on the intelligent breeding platform according to experience needs, when the collected environmental data exceeds the threshold, the agricultural Internet of Things system can give an alarm, set the alarm method according to the needs, can be set as platform alarm, mobile phone SMS alarm, etc., to help farmers find problems in time, and accurately determine the livestock and poultry individuals with problems, in order to further improve the intelligence of environmental regulation and the timeliness of breeding environment regulation, and reduce the management is not in place due to human negligence, when the environment is abnormal alarm, the intelligent breeding platform can carry out linkage control on the control equipment, and carry out linkage control on infrared lamps, fans, wet curtains, etc. according to the set parameter values, it makes farming management and other work easy, efficient and accurate.

On-line monitoring of NH3, H2S, CO2 and other gas sensors installed in the farm-ventilation to keep the air fresh in the breeding house

Carbon dioxide is a colorless, odorless, slightly sour gas. Carbon dioxide is non-toxic, but the carbon dioxide content in the breeding house is too high, and the oxygen content will be relatively insufficient: ammonia and hydrogen sulfide mainly come from the decomposition of organic matter (manure, straw and feed). Ammonia is recognized as a stress source, hydrogen sulfide is a kind of toxic gas with high concentration in livestock and poultry breeding house, which has the smell of rotten eggs. These harmful gases not only affect the health of people and livestock, but also easily pollute the surrounding environment. The stimulation of ammonia and other harmful gases to the respiratory mucosa of farmed animals can easily induce chronic respiratory diseases, followed by ascites syndrome, etc,Great harm to farmed animals. Therefore, it is necessary to analyze and detect gases such as NH3, H2S, and CO2 in the farm to control the concentration of various gases.

Intelligent livestock and poultry breeding environment measurement and control Internet of Things system, the application of ammonia sensors, hydrogen sulfide sensors, carbon dioxide sensors and other equipment, real-time collection of gas parameter values in the breeding house. The value is transmitted to the management platform, and the control equipment is linked to control ventilation, which can discharge dirty air in time and continuously absorb fresh air. At the same time, considering the influence on the temperature and humidity in the house, ventilation is selected when the temperature is higher in winter, and ventilation is selected in cool night or morning in summer.

NH3, H2S,CO2Gas sensor equipment, etc,Tech Offers Japan FigaroAmmonia gas sensor(NH3 Sensor) TGS826, UK Alphasense Hydrogen Sulfide SensorH2S-B1UK GSS Infrared Carbon Dioxide Sensor (NDIR CO2 Sensor)COZIR-A, and other high-quality gas sensor solutions, can timely and accurately control and monitor the gas in the environment of the breeding site.

Ammonia sensor (NH3 sensor)TGS826 has a high sensitivity to ammonia and can detect ammonia in the air as low as 30ppm. It is an ideal refrigerant critical safety detection sensor and can also be used for ammonia leakage detection in the agricultural field. Mainly used in refrigerator gas detection, cold storage ammonia leak detection, agriculture and aquaculture ventilation control and so on.

Hydrogen sulfide sensor H2S-B1 main features: no filter, two years life and so on. It is mainly used to detect the concentration of hydrogen sulfide gas in the atmosphere.

The carbon dioxide sensor (NDIR CO2 sensor) COZIR-A is a high-performance CO2 sensor with ultra-low power consumption (3.5mW), which is ideal for battery-powered products and portable devices. Based on IR LED patented technology and innovative optical path design, the carbon dioxide sensor COZIR becomes zui's low-power NDIR sensor. And optional temperature and humidity output. The optional three ranges are 0-2000ppm, 0-5000ppm and 0-1%, which makes the carbon dioxide sensor COZIR-A more suitable for building automation (HVAC) and agricultural greenhouses.

The promotion and application of agricultural Internet of things technology in the field of aquaculture is to realize the intelligent control, scientific management, information service and whole process traceability of the production and operation process, which is of great significance to improve the utilization rate of resources and labor productivity, improve the output, quality and safety of products, and improve the income level of farmers and the health level of consumers.