Design And Implementation Of Automatic Monitoring System Of Fishing Pond

China is a big country of aquaculture,in recent years,with the rapid development of aquaculture industry,also appeared in water pollution,water quality decline and a series of problems.Among them,the level of water quality directly depending on the aculture environment especially water environment.Therefore,in the future development of aquaculture,the use of modern science and technology to monitor the water environment in an accurate and timely manner has become an inevitable trend.In this paper,seven water quality parameters,including the pH value,ammonia nitrogen content,electrical conductivity,dissolved oxygen,turbidity,temperature,and humidity of fish ponds,are studied.The use of Internet of Things technology to monitor the quality of fish ponds meets the needs of users in real time to understand the water quality parameters of the fish ponds.This paper designed a fish pond automatic monitoring system based on wireless sensor network technology.The system is mainly composed of three parts: several terminal nodes,a coordinator node and a master control unit.Each terminal node consists of two parts: acquisition and control.Each water quality sensor forms a acquisition section,and the control section includes multiple actuators.The ZigBee coordinator forms a coordinator node,and the system's wireless sensor network is mainly constructed using ZigBee technology.The main control unit mainly includes three parts: CPU,display screen and keyboard.The wireless sensor node adopts CC2430 as a core processor,which includes a terminal node and a coordinator node.The sensor sends the collected water quality information to the terminal node through the Mod Bus bus.The terminal node wirelessly sends the data to the coordinator node through the ZigBee technology and then transmits the data to the main control unit through the serial port,which realizes the real-time and itemized display of various water quality parameters.And,after receiving the control command of the main control unit,the coordinator node wirelessly sends it to the control node to control the start and stop of the actuator.At the same time,the controlled device will feedback the execution status after it is executed.The system has realized real-time monitoring of the water body's PH value,ammonia nitrogen content and other important parameters,making the fishing pond water parameters are conducive to the healthy growth of fish.At present,the system has been successfully debugged in the laboratory and the development cost of this system is low,and its scalability is high.It is suitable for aquaculture of fish ponds and monitoring of the water quality of local water intakes.It has certain research significance.