YSI EMM2500 Water Quality Automatic Monitoring Buoy System

Water quality ecological buoy deployed into the ocean/The ecological monitoring of water quality in natural environments such as lakes must be a complete system. In addition to having instrument measurement capabilities, it should also be equipped with wireless data transmission and self powered equipment, and be able to withstand harsh outdoor environments with multiple measurement parameters and minimal operation and maintenance. In addition, the deployment point must meet the relevant regulations and requirements of the maritime department. In summary, it should have the following functions:

Data storage and processing functions System detection and control functions Wireless data transmission function Abnormal situation alarm function Self powered function Global positioning function Excellent ability to tolerate the environment

1Monitoring projects

● Physical parameters: dissolved oxygen, temperaturepHSalinity, turbidity, chlorophyll, blue-green algae

● Chemical parameters: ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, orthophosphate, total phosphorus/Total nitrogenCOD

● Meteorological parameters: wind speed, wind direction, air pressure, temperature, humidity, light intensity, and rainfall

● Hydrodynamic parameters: velocity, flow direction, and non directional waves

2Characteristics of buoys

● Material: solid ion resistant polymer foam

● Diameter:1.2m、2m、3m

● Overall height:2.7m

● Reserve buoyancy:300kg、1000kg、2000kg

● Navigation beacon lights and radar reflectors comply with the requirements of the International Association of Navigational Signs

● Mooring method: Hall anchor and anchor chain

● Stainless steel support frame, used for installing solar panels, watertight antennas, warning lights, radar reflectors, etc., as well as lifting and maintaining supports for buoys.

● Sealed waterproof control room: equipped with a built-in data acquisition controller, battery system, and humidity and temperature sensors. The stainless steel bottom of the control room is directly connected to the stable valve through a stable groove● Fully contact the water body, balance the temperature in the control room at an appropriate level, and prevent equipment damage from high temperatures in summer.

3Application Fields

● Water source warning

● Monitoring and early warning of red tide algal blooms

● Monitoring of water quality in rivers, lakes, and reservoirs

● Marine and Coastal Water Quality Survey

● Water quality evaluation of aquaculture areas

● Monitoring and Investigation of Eutrophication Status

● Estimation and Distribution Survey of Algae and Plankton Quantity