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The function of online water quality monitoring system - real-time monitoring of water quality parameters and evaluation of eutrophication level of water bodies
Date: 2025-12-23Read: 1

【 Model recommendation: TH-SFB05, manufacturer of meteorological environment monitoring instruments and equipment, Yunjing Tianhe supports customized services for merchants. You can rest assured when choosing Shandong Yunjing Tianhe. 】 The function of the water quality online monitoring system is to monitor water quality parameters in real time and evaluate the degree of eutrophication of water bodies. The float water quality monitoring station is an intelligent system that uses buoys as carriers, integrates multiple sensors and monitoring devices, and is used for real-time and continuous monitoring of water quality. The float body serves as the support platform for the entire system and is usually made of lightweight and corrosion-resistant materials, such as ultra-high molecular weight polyethylene, which has the characteristics of anti-corrosion, anti biological attachment, anti-collision, anti lightning, non-magnetic, etc. It is suitable for complex hydrological and hydrodynamic conditions such as reservoirs. The sensor array is equipped with various high-precision sensors for real-time monitoring of key water quality parameters in water bodies, such as dissolved oxygen, pH value, temperature, turbidity, conductivity, ammonia nitrogen, nitrate, chemical oxygen demand (COD), etc. Some devices also support extended monitoring of heavy metals (such as lead and mercury) and salinity. The data acquisition and transmission unit is equipped with a built-in data acquisition module, which transmits real-time data to the cloud or monitoring center through wireless communication modules (such as 4G/5G, LoRa, satellite communication). At the same time, it supports the storage and export of historical data for subsequent analysis. The power supply system usually adopts a dual power supply mode of solar energy and lithium battery to ensure long-term stable operation in the field. Some devices can have a battery life of several months, meeting the needs of long-term monitoring. Auxiliary equipment includes anchor units (used to fix buoys), protective covers (used to protect sensors), warning lights (used for night or severe weather warnings), etc.

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1、 Function Introduction

1. The SFB buoy water quality monitoring station adopts an enhanced integrated cone structure, which increases equipment stability and durability more in line with buoy engineering.

Real time measurement of hydrological, water quality, and meteorological parameters within lakes or watersheds. The system integrates data collection and transmission, and has over limit SMS alarm function and automatic light sensing function. It has the characteristics of multiple measurement parameters, high measurement accuracy, large storage capacity, convenient networking, and stable operation. The buoy adopts an unmanned intelligent control system to complete the data collection and transmission of multiple sensors; The solar power supply system consists of solar panels and large capacity batteries, which can ensure the electricity required for long-term operation in the field; The buoy marker is made of ultra-high molecular weight polyethylene material, which has good anti-corrosion ability, prevents biological attachment, does not fade, strong collision resistance, lightning resistance, non-magnetic and other characteristics, and is suitable for complex hydrological and hydrodynamic conditions such as reservoirs.

The SFB05 buoy consists of six parts: water quality sensor (water temperature, conductivity, pH, dissolved oxygen, ammonia nitrogen), data acquisition instrument, communication system, power supply system, overall bracket, and water quality monitoring platform. At the same time, it can expand multiple water quality factors such as turbidity and COD. The data acquisition device has functions such as data acquisition, real-time clock, timed data storage, parameter setting, and standard 2G/4G (GPRS) communication.


2、 Product Features

1. Easy to deploy: Various types of probes are highly integrated and easy to install; Provide free cloud platform services and quickly launch the system;

2. Easy to maintain: After installation, the equipment can work on its own without the need for manual monitoring, and can also be ensured to operate normally through remote monitoring;

3. Easy to expand: The sensor probes all use a unified communication protocol, which can quickly interface with the original equipment and expand monitoring parameters quickly;

4. Low power consumption: The device can operate for a long time in a low-power state, increasing the convenience of device use;

5. Real time performance: The data monitored by the device is transmitted in real-time to the cloud platform, improving the timeliness of environmental data feedback.


3、 Technical parameters

1. Main parameters

Product Name description
Environmental water quality monitoring buoy Real time online monitoring of multiple parameters can be achieved. Can achieve battery level monitoring. It can achieve cloud platform data monitoring, data push, data storage, and alarm functions; Wireless transmission function of data. The peak power consumption is 5W; the sensor power consumption is around 0.25W per unit. Dimensions: 800 * 350mm. Floating body diameter 790mm Weight: 26kg
core component description
Data collection by collector Reliable operation, anti-interference, capable of integrating multiple RS485/MODBUS-RTU slave devices
Collector data output 1-channel Rs485/JSON protocol output
battery Lithium battery 12VDC, 20AH (default)
Solar panels 18V/55W (default) 800mm circular solar panel frame aluminum alloy customized
Power supply capability Customized selection; Intermittent work for more than 5 days on rainy days
Position indication (optional) Warning lights; GPS positioning;
monitoring platform Cloud platform; Mobile/computer multi terminal login
protective shield 304 stainless steel filter cartridge protective cover
floating body 790mm diameter conical floating body * 1 integrated engineering plastic


Main parameters of optional sensors








serial number name measurement range Measuring principle measurement accuracy Is it standard remark
1 temperature 0~50℃ High precision digital sensor ±0.3℃ ✔
2 pH 0~14(ph) Electrochemistry (salt bridge) ± 0.1PH ✔
3 ORP -1500mv~1500mv Electrochemistry (salt bridge) ± 6mv

4 conductivity 0~5000uS/cm Contact electrode method ± 1.5% ✔
5 turbidity 0~40NTU (low turbidity) scattered light method ± 1%
Low turbidity can be customized
0~1000NTU (medium turbidity) scattered light method ± 1%
Medium turbidity can be customized
0~3000NTU (high turbidity) scattered light method ± 1%
Default sending
6 dissolved oxygen 0~20mg/L Fluorescence lifetime method ± 2% ✔
7 ammonia nitrogen 0-1000.00mg/L (default)
0-1000mg/l/(customizable)
Ion selective electrode method 10% of the reading, ± 0.5 ℃ ✔
8 cod 0~1000mg/ L UV254 absorption method ±5%
Equipped with an automatic cleaner, it can prevent biological attachment, avoid light window pollution, and ensure long-term monitoring stability; Automatic cleaning time and frequency can be set, with a power consumption of 0.7W
turbidity 0~400NTU scattered light method ± 1%
9 suspended solids 0~2000mg/L scattered light method ± 5% (depending on sludge homogeneity)

10 chlorophyll 0~400ug/L fluorescence method R2>0.999
Equipped with an automatic cleaner, it can prevent biological attachment, avoid light window pollution, and ensure long-term monitoring stability; Automatic cleaning time and frequency can be set, with a power consumption of 0.7W

4、 Product dimension diagram

5、 Equipment installation requirements

1. Stay away from high-power radio transmission sources

2. Stay away from high-voltage transmission lines and microwave radio transmission channels

3. Try to get as close as possible to the data transmission network

4. Stay away from strong electromagnetic interference


6、 Introduction to Cloud Platform

1. CS architecture software platform, supporting direct observation through mobile and PC browsers No additional software installation is required.

2. Support multi account and multi device login

3. Support real-time data display and historical data display dashboard

4. Cloud servers Cloud data storage, stable and reliable, easy to expand, load balancing.

5. Support SMS alarm and threshold setting

6. Support map display and viewing device information.

7. Support data curve analysis

8. Support data export in tabular format

9. Support data forwarding, HJ-212 protocol, TCP forwarding, HTTP protocol, etc.

10. Support data post-processing function

11. Support external running of JavaScript scripts