1Traffic monitoring stationProduct Overview
SW4 is a fully automatic hydrological online monitoring system based on microwave technology, which can simultaneously measure water level, flow velocity, flow rate, and rainfall in channels. It adopts advanced K-band planar radar technology to measure the flow velocity and water level of water bodies in a non-contact manner. According to the built-in software algorithm, it calculates and outputs real-time cross-sectional flow and cumulative flow; Can be used for non-contact flow measurement in rivers, irrigation channels, underground drainage networks, flood prevention warnings, and other occasions; This product has the characteristics of low power consumption, compact size, high reliability, and easy maintenance; The measurement process is not affected by factors such as temperature, sediment, river pollutants, and floating debris on the water surface.
IITraffic monitoring stationApplication field
1. Measurement of velocity, water level, flow and rainfall of rivers, lakes, tides, reservoir gates, underground water pipe networks, irrigation canals and canals.
2. Auxiliary water treatment operations, such as urban water supply, sewage monitoring, etc.
3. Flow calculation, monitoring of inflow and outflow flow, etc.

3、 Product Features
1. Non contact measurement, combined with cross-sectional parameters to calculate flow rate, not affected by wind, temperature, haze, sediment, floating debris, etc.
2. It is suitable for a variety of measurement conditions and is not affected by corrosion and foam. It can output the measurement data of flow rate, water level and flow.
3. The flow rate and water level are measured using a planar array radar antenna with built-in angle measurement function. The device is compact in size and easy to install.
4. Convenient configuration software that can easily configure parameters according to actual needs to adapt to different usage conditions.
5. Not affected by changes in water vapor, temperature, and pressure in the atmosphere
4、 Monitoring platform
1. CS architecture software platform, supporting direct observation through mobile and PC browsers without the need for additional software installation.
2. Support multi account and multi device login
3. Support real-time data display and historical data display dashboard
4. Cloud servers and cloud data storage are stable, reliable, easy to scale, and load balanced.
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
5、 Summary indicators
Power supply voltage: 100mA (working),<1mA (sleep);
Working voltage: 12V power supply
Operating temperature: -35 ℃~60 ℃;
Storage temperature: -40 ℃~60 ℃;
Outdoor protection level: IP68
Signal output: RS485/MODBUS protocol;
6、 Technical parameters
Water level measurement
Ranging range: 0.4-40 meters
Distance measurement accuracy: ± 1cm
Distance measurement resolution: 1mm
Interval time: 1-5000min
Flow velocity measurement
Ranging range: 0.15-15m/s
Speed measurement accuracy: ± 2%
Speed resolution: 0.01m/s
flow measurement
Flow rate=average flow velocity x cross-sectional area x correction factor
The average flow velocity is obtained by collecting the surface flow velocity of the fluid using a flowmeter and calculating it through a model
The cross-sectional area of the overcurrent is calculated based on the water level measured by the water level gauge and the cross-sectional information
Rainfall monitoring
Measurement range: Rain intensity 0-4mm/min
Measurement accuracy: ± 0.2mm
Resolution: 0.2mm
Rain bearing diameter: 200mm
Power supply method: solar panel+battery combination power supply
Solar power: 10W/30W (optional)
Battery parameters: DC3.7V 10Ah
Bracket height: 4 meters for vertical pole and 3 meters for horizontal arm
Working environment: -20 ℃~80 ℃ (non freezing state)
7、 Installation precautions
1. Installation environment
There are no huge stones blocking the water in the test channel section, and there are no phenomena such as huge eddies or turbulence
The testing channel section should be straight, stable, and have concentrated water flow
The test channel section needs to be hardened, and the measurement section should be regular
The testing channel section should be kept smooth to prevent the accumulation of floating debris
2. Installation height
Suggested installation height of 3-4 meters
3. Installation direction of flowmeter
The beam of the flowmeter is recommended to face the incoming water direction
Attachment: Construction Manual for Hydrological Monitoring Station