1、 Equipment composition

The names of each component are as follows: ① Camera integrated machine (with built-in infrared and CPU) ② Upper computer (terminal) ③ Communication cable

2、 Equipment principle

The device uses a camera with an infrared beamformer to capture surface images of the measured river or channel. Through image recognition, photography time intervals, and complex algorithms, the flow velocity distribution on the water surface is calculated. Then, based on hydraulic models and algorithms, the vertical flow velocity distribution of the flow measurement section is obtained; The measurement of water level is calculated based on landmarks and image recognition on the shore; By analyzing the vertical velocity distribution and water level, the flow rate of the entire section can be calculated.

This device is a product that uses the principle of image velocimetry to measure the flow velocity and volume of open channels in the wild. It utilizes Internet of Things technology, machine vision technology, and advanced image processing algorithms to achieve real-time measurement of non-contact and unmanned river surface flow velocity field (and thus vertical flow velocity field), water level, and flow rate.

Flow velocity profile measurement and calculation

Water level detection

3、 Application scope

4、 Equipment installation

Installation location：

The camera integrated machine should be installed near the straight section of the channel as much as possible, and the upper part should be as close to the center of the channel as possible. Its camera range should cover a certain section of the channel.

Installation method:

The camera all-in-one machine can be installed on masts, bridges, or buildings, and its mounting base can be fixed. Or configure an installation base plate, fix the installation base plate first, and then install the camera.

5、 Characteristics

① Easy installation and maintenance: Non contact measurement, just a video monitor, easy to install and maintain.

② No need for flow rate tracer: enhance flow measurement signal by utilizing fluid surface structure and natural floating objects.

③ Local data processing: No remote image transmission is required, only the calculation results can be stored and transmitted remotely, which is no different from ordinary digital flow meters.

④ High precision: Measuring the surface flow field of fluids with strong representativeness and high accuracy.

⑤ Can provide image data: The device can simultaneously provide high-definition on-site images.

⑥ Durable and sturdy: It is not affected by weather and can be used in various weather, environmental, and lighting conditions.

video camera:Outdoor type, integrated infrared radiator, can be used for night photography.

Resolution: 3MP Full HD 1080p PoE IR

Protection level: IP66

Frame rate: up to 20 fps

Night vision: up to 50m

Operating System:Linux

Number of CPU cores: 4

CPU frequency: 2 GHz

Memory/RAM: 2 GB

Measurement range and accuracy:

Flow velocity measurement range: ± 15 m/s

Accuracy (depending on site conditions)

Flow rate:<3% of the measured value

Water level:<1 cm

Flow rate:<5% of measured value

Output protocol:Modbus

Temperature:

Camera operating temperature: -30... 60 ° C

Central unit operating temperature -20... 60 ° C

Storage temperature: -20...+85 ° C

Power Supply:230 V/12V 6Ah

power waste:100w

Protective shell material:Reinforced Fiber Plastic

Installation method:On the wall or mast

Mast clamping range:(Deviation from the clamping range will result in additional costs)

Circular diameter 40-190 mm

Square 50-150 mm

Size:400 x 600 x 200 mm