Product schematic diagram：
main features :
An adaptive algorithm that meets the hydrological multi vertical flow measurement standard, using different flow calculation models according to different water depths;
Internally integrated 4G DTU, communication can be achieved without external DTU, and wired Ethernet is also supported;
Comes with a 2.8-inch TFT display screen and operation buttons for easy on-site debugging;
LORA wireless communication has strong anti-interference ability, long communication distance, and low power consumption;
Supports TYPE-C USB interface for easy connection with computers;
Support multiple water level gauge connections, select different water level gauges according to different sites;
Support simultaneous uploading of data from 3 central stations, while also supporting different communication protocols;
Support input of 100 point large cross-section data;
Supports 64 vertical lines (more customizable);
Extremely low standby power consumption, and supports wake-up at any time for easy testing;
Support remote configuration and call testing (send commands anytime, anywhere on the phone to start flow testing) function;
Support fault detection such as car slippage and limit detection;
Support quick customization of communication protocols and sensor acquisition protocols, free access to various platforms;
Adopting a dual track cableway design with strong stability and a track spacing of 300mm;
The automatic running vehicle has a small volume, light weight, and a small windward side, increasing the wind resistance level;
Support infrared wake-up function, support in place detection of docking boxes and small cars, and support charging position detection;
24/7 unmanned operation, easy to install, maintain, and operate;
Historical data will automatically store detailed information such as cross-sectional data, vertical position, vertical flow velocity, and flow rate;
Support active fault alarm function, 7 * 24-hour on duty;
The platform supports checking the system operation status at any time;
Support active disconnection of charging power to protect the battery;
The flow rate range can be configured to achieve the best match between sampling accuracy and speed;
Compact size, easy installation, non-contact flow measurement, unobstructed for water bodies;
The measurement accuracy of flow velocity is high, and there is no drift, no need for calibration;
Provide a free platform for querying data, which can intuitively display the distribution of cross-sectional flow velocity;
Product parameters：
1）control system
Power supply range: DC 24V 2A (maximum DC 6-28V), usually DC24V 48W power supply
Working current<5.5 mA @ DC12V 25 ℃
Standby current<0.6mA @ DC12V 25 ℃
Working temperature -30 ℃ -70 ℃
Storage temperature -35 ℃ -75 ℃
RF conduction sensitivity LTE FDD B1/B3/B5/B8/B34/B38/B39/B40/B41<-99dBm
RF output power LTE FDD B1/B3/B5/B8-44dBm~23dBm (± 2dBm)
LTE TDD B34/38/B39/B40/B41 -42dBm ~ 23dBm (±2dBm)
Maximum output current<2A @ DC12V (the total current output to the sensor cannot exceed 2A)
SIM card type MicroSIM (4G SIM card for all networks)
Display screen 2.8-inch TFT LCD 320 * 240 resolution
Short transmission wireless Lora
Communication methods: 4G/Ethernet/Other (2G/3G/5G/WIFI)
Wake up method: infrared wake-up, LORA air wake-up
Measurement method: timed, triggered, and called for testing
2）travelling trolley
Battery parameters: 18.5V 20AH lithium battery
Charging voltage DC24~28V
Charging current<1.2A
Charging method: automatic constant current and constant voltage charging, can actively disconnect charging
Limit method: limit photoelectric sensing, charging position sensing
Working temperature -30 ℃ -65 ℃
Wheel spacing 300mm
Communication method: Wireless Lora/Other (2.4G)
Wake up method: infrared wake-up, Lora air wake-up
Flow meter interface DC12V RS485 interface
Communication distance ≥ 3000m
Position accuracy better than 0.1%
Protection level IP45
Wind resistance level 8
Motor power ≤ 40W
Other functions include slip detection, abnormal charging alarm, and fault alarm
3）Radar flowmeter
Power supply range: DC 12V/24V (maximum DC 9-28V), recommended DC12V
Working current average current<18mA @ DC12V 25 ℃
Working temperature -30 ℃~70 ℃
Storage temperature -40 ℃~85 ℃
Flow velocity range 0-65m/s (adjustable range 0-18m/s; 0-36m/s; 0-65m/s), default 0-18m/s ②
Flow velocity accuracy 1% (accuracy within 1m ± 1cm/s)
Flow velocity resolution 1mm/s
Waterproof rating IP68
Power protection, anti reverse protection, electrostatic discharge protection
Extreme working temperature -35 ℃~80 ℃
Communication interface RS485 interface (baud rate 9600,8, N, 1)
Communication protocol standard Modbus RTU protocol, function code 03H
Flow measurement radar frequency 24GHz
The beam angle of the current measuring antenna is 12 ° horizontally and 25 ° vertically
Size 100x100x38mm
Weight 0.55kg (excluding cables and brackets)
system composition：
