配置方式：手机端APP通过蓝牙无线链接方式配置设备。
Equipment composition: The buried waterlogging measuring point is composed of a waterproof ａnd anti-corrosion 304 stainless steel shell, a water level detection module (waterlogging depth ａnd status), a Bluetooth configuration module, a LORA wireless communication module, ａnd a built-in lithium-ion battery.
Working principle: Based on a liquid dielectric ultrasonic sensor, the time interval between the emission ａnd reception of sound waves is measured, ａnd the compensated sound speed is combined to obtain the distance of sound wave transmission. The current liquid level height can be obtained based on the time difference between the ultrasonic wave emitted ａnd the water surface echo received at the installed measuring point.
Power supply method: built-in battery power supply (3.6V lithium-ion sub battery 38000mAH)
Endurance: Can work continuously for more than 5 years without accumulated water (upload one message every 5 minutes without accumulated water, ａnd upload one message every 1 minute with accumulated water)
Water level range: ≤ 1.5m
Water level error: 1cm
Resolution: 1mm
Output signal: LORA wireless spread spectrum signal
Shell material: 304 stainless steel
Protection level: IP68
Installation method: Buried installation method is adopted, ａnd an installation hole is opened at the location where the equipment is installed on the road surface. The equipment size is shown in the following figure. After the opening is completed, place the equipment vertically into the installation hole ａnd pour in the filling material to secure the equipment. Attention: Ensure that the remains level to avoid affecting the measurement.
Equipment size: height 187mm, chamber diameter 60mm, disc diameter 120mm.
Communication interface: Adopting a low-power LAN wireless standard developed by Semtech company - LORA wireless communication, this communication method achieves the unity of low-power ａnd long-distance. Equipped with our company＇s unique LORA wireless communication protocol, we can communicate wirelessly ａnd remotely with our water monitoring station host, with a communication sight distance of up to 800m.
Configuration method: The mobile app configures the device through Bluetooth wireless link.
