Intelligent monitoring technology and system for aquaculture

2022-08-29 16:43

Intelligent monitoring technology and system of aquaculture based on Internet of Things

※ Background

China is one of the countries with the longest history of aquaculture in the world, with rich experience in aquaculture and popularization of aquaculture technology. Since the reform and opening up, China's fishery has adjusted its development focus and established a development policy focusing on aquaculture. The aquaculture industry has achieved rapid development, and the industrial layout has undergone significant changes. It has made remarkable achievements, accounting for about 80% of the world's aquaculture output. It has expanded to all parts of the country from coastal areas, Yangtze River, Pearl River basin and other traditional breeding areas. In recent years, China's aquatic product export volume and export volume have increased to varying degrees. In addition, the consumption of the domestic market is also increasing. Coastal areas, along the Yangtze River, the Pearl River Delta and the Yangtze River Delta are the main markets for aquatic products. In general, China is a large aquaculture country.

And the rapid development of aquaculture in China is of great significance to the prosperity of rural economy, the optimization of industrial structure, the improvement of farmers' living standards, and the construction of a harmonious new socialist countryside. The Outline of the National Medium and Long term Scientific and Technological Development Plan (2006-2020) has clearly included "agricultural precision operation and informatization" and "healthy livestock and poultry breeding and disease prevention and control" as the priority themes. Therefore, building a modern aquaculture industry, developing the rural economy and improving the competitiveness of aquaculture in the international market have become an important task for the development of China's aquaculture industry at present and for a considerable period in the future.

※ Current situation and demand

For a long time, most aquaculture producers and operators in China have been pursuing production and short-term economic benefits. The aquaculture density is too high, drug abuse, aquaculture diseases and industrial pollution are increasing year by year. In addition, the aquaculture pond is aging and the awareness of protecting the aquaculture environment is weak, so that the water environment is damaged to varying degrees. The quality and safety of aquatic products are not effectively guaranteed, and the sustainable development of aquaculture is seriously affected, How to improve the quality of aquaculture products, increase the economic benefits of operators, and achieve efficient, ecological and safe modern aquaculture industry has become a major problem to be solved in China.

However, the traditional extensive aquaculture method, which uses manual observation and simply relies on experience to conduct aquaculture, is easy to cause untimely regulation, slow feedback, "floating head", large area death and other tragedies in the aquaculture process, resulting in significant economic losses. The above methods can no longer meet the development requirements of modern aquaculture for precision and intelligence.

The key parameters affecting the aquaculture environment include water temperature, light, dissolved oxygen, PH, ORP, residual chlorine, turbidity, conductivity, salinity, etc., but these key factors are invisible and hard to grasp accurately. The existing aquaculture management is guided by aquaculture experience, which is a universal aquaculture law. It is difficult to be accurate and reliable, and the output is difficult to be guaranteed. With the continuous development of aquaculture, market regulation is out of control, and competition is becoming increasingly fierce. It is imperative to master accurate and reliable aquaculture data, conduct scientific aquaculture, and improve production and quality.


※ System overview

After years of field inspection and a large number of research and experiments on aquaculture, Noble Technologies has developed a remote data acquisition and information release system based on wireless mobile communication and measurement and control technology, aiming at the diversity, variability, remoteness and dispersion of aquaculture environmental objects. The system can measure water parameters in real time, realize continuous monitoring and automatic alarm of aquaculture numerical and information, and enable operators to understand the changes of aquaculture environmental water quality in real time and online. In addition, it can cooperate with the aerator, dosing system and other equipment to achieve automatic intervention and regulation of water quality parameters without manual attendance. Save a lot of manual operation and power consumption for users, limit losses caused by fish diseases, and reduce mortality. Through long-term continuous monitoring, regulation and control of water quality, aquaculture yield can be significantly increased.

The IOT aquaculture intelligent monitoring system developed and produced by Noble Technologies has the following characteristics:

1. Parameters of water quality can be monitored in real time: water temperature, light, dissolved oxygen, PH, ORP, residual chlorine, ozone, turbidity, conductivity, salinity, ammonia ion, etc. Different monitoring parameters and collection schemes are provided according to different aquaculture environments such as freshwater, seawater and artificial seawater to ensure the accuracy and long-term stability of data. It can be integrated into multi parameter cabinet instrument.

2. Touch screen display operation, real-time display, operation and setting of multiple parameters. It is convenient for users to manage and view data in real time on site.

3. The system consists of sensor/electrode, transmitter (instrument), field touch screen, wireless module, duty host computer, user equipment control module, etc

4. It can automatically control the operation of relevant equipment, such as oxygenation equipment, PH buffer dosing equipment, disinfectant dosing equipment, etc. Realize unattended control of water quality parameters.

5. Data remote monitoring can monitor data in a short distance by wire, or alarm notification and data transmission can be conducted via the Internet through wireless modules such as wifi and gprs. Computers or mobile devices can remotely conduct real-time online monitoring of aquaculture water quality and check the operation status of relevant equipment through relevant software (such as host computer software system, mobile phone APP). It is convenient for users to receive alarms and store relevant data at the remote end.

※ Scheme example

Multi parameter cabinet instrument

The water sample from the aquaculture pond is introduced into the multi parameter water quality instrument box by pipeline, and the water sample in the instrument cabinet is kept circulating and updated (water can be taken from the aquaculture pond by water pump, and then discharged back to the aquaculture pond). High and low points interfaces are reserved on the instrument, which can control the operation of corresponding equipment by setting the high and low points of corresponding parameters, such as oxygen dispenser, PH buffer dosing equipment, etc., without personnel on duty. Each electrode and sensor will transmit the measured relevant values to the touch screen through the first RS485 of the instrument, and the touch screen will display the parameters on the screen for the convenience of on-site users to view and query history. The second RS485 of the instrument will reserve an interface outside the instrument cabinet, and wireless data transmission will be carried out through the WIFI/GPRS module. Users can collect, record and query data on computers or mobile phones through the Internet to achieve remote real-time monitoring. In addition, when a key control value is detected to be higher or lower than the set alarm value, the system will send an alarm notification to the remote monitoring equipment, so that users can know the water quality status and the operation status of related equipment in time.