Fujian Aotai Automation Equipment Co., Ltd. completed the installation of urban drainage flow telemetry equipment in a city in southern China.

2025-11-14 15:08:46

In early November 2025, Fujian Aotai Automation Equipment Co., Ltd. successfully installed an ultrasonic Doppler flow velocity and flow telemetry terminal in a city's drainage flow telemetry project in a city in southern China, providing technical support for the monitoring and management of the local drainage system.

I. Core Technology and Measurement Capabilities

The equipment uses ultrasonic Doppler technology as its core, offering accurate and comprehensive measurement performance:

- Flow velocity identification and resolution: It can identify flow velocities as low as 3 mm/s, with a flow velocity resolution of 1 mm/s, capturing minute changes in flow velocity within the drainage network;

- Measurement principle: The sensor emits ultrasonic signals into the water body, utilizing the Doppler effect generated by the sound waves reflected by acoustic scatterers (moving with the water flow). Combined with vector correction of the illumination angle, the water flow velocity is accurately obtained;

- Flow calculation: Equipped with a static pressure water level sensor and preset pipe size parameters, it automatically calculates the drainage flow rate, enabling real-time monitoring of the drainage status.

II. Equipment Configuration, Installation, and Power Supply Advantages

1. Flexible Configuration Options:

- Configuration Method: The telemetry terminal supports Bluetooth local configuration and 4G wireless remote configuration, meeting parameter adjustment needs in different scenarios.

- Optional Functions: A satellite positioning module (for accurate device location) and an attitude sensing module (for monitoring device installation status and tilt) can be added to expand the equipment's practical value.

2. Protection and Durability: Utilizing a stainless steel casing with IP68 protection, it can withstand humid and complex environments in drainage scenarios, effectively ensuring long-term stable operation.

3. Installation and Maintenance: Adopting a wall-mounted installation design simplifies the installation process and facilitates subsequent equipment maintenance and data upkeep.

4. Power Supply and Transmission:

- Power Supply: Under the operating condition of "measuring and uploading data every 5 minutes," a 266 Ah battery allows for continuous operation for 5 years. Additionally, 133 Ah and 399 Ah battery configurations are available to meet the battery life requirements in different scenarios.

- Data Transmission: Real-time measurement data is uploaded to the management server via wireless 4G signal, ensuring timely and stable data transmission without the need for an external power supply, making it suitable for installation environments without power.

III. Application Scenarios and Core Value of Flow Monitoring

Urban drainage flow monitoring has a wide range of applications. It is suitable for daily pipeline operation monitoring, real-time monitoring of dynamic changes in residential drainage and industrial wastewater discharge; it can also track the runoff velocity and flow rate of rainwater pipe networks during rainfall, providing data support for predicting urban flooding risks. Its core function is to not only provide early warnings of pipe blockages and overflows, reducing problems such as road flooding and sewage overflows; but also to provide accurate data for drainage network upgrades, rainwater and sewage separation project effectiveness evaluation, and sponge city construction planning, helping urban drainage systems shift from "passive response" to "proactive management" and improving overall operational efficiency and risk resistance.