Dayu Electronic Doppler Flowmeter + DTU Enhances Flow Monitoring at Industrial Park Sewage Outlets

As national requirements for water environmental protection continue to rise, online monitoring of industrial park sewage discharge outlets has become a critical component of environmental supervision. Recently, Dayu Electronic tailored a flow online monitoring solution for a sewage discharge outlet in an industrial park, centered around an ultrasonic Doppler flowmeter and paired with a DTU wireless data transmission module, achieving all-weather precise measurement and remote monitoring of outlet flow.

01 Precise Measurement to Tackle Sewage Condition Challenges

Sewage discharge media in industrial parks are complex in composition, often containing impurities such as sediment, suspended particles, and bubbles. Traditional contact flowmeters are prone to clogging and wear, making it difficult to ensure measurement accuracy. Dayu Electronic's ultrasonic Doppler flowmeter operates based on the Doppler effect principle—the device emits ultrasonic pulses of a fixed frequency into the fluid. When the acoustic waves encounter suspended particles or bubbles in the fluid, they scatter, and the frequency of the reflected waves shifts due to fluid motion (Doppler shift). A built-in high-sensitivity transducer receives the reflected signals and calculates flow velocity through algorithms, which are then combined with water level measurement data to compute instantaneous flow and cumulative flow. Impurities in the sewage actually serve as effective carriers of the measurement signal, ensuring stable and precise measurement even in complex media containing solid particles and bubbles. The device features a split structure, with the sensor rated IP68, allowing long-term immersion in sewage environments for stable operation.

02 Solar Power Supply + DTU for an Unattended Monitoring System

Considering that discharge outlet sites often lack municipal power supply conditions, this solution employs a solar power supply system to independently power the flowmeter and DTU equipment. The solar power solution has been validated in numerous industrial monitoring scenarios, effectively addressing the difficulty of power access at remote outlets. The flowmeter connects to the DTU module via an RS485 interface, using the standard Modbus protocol for data communication. The DTU uploads collected data—including instantaneous flow, cumulative flow, flow velocity, and water level—to the Dayu GongxiaoSi server in real time via 4G cellular networks, establishing a solid data channel for information-based supervision through efficient on-site data collection and seamless wireless transmission.

03 Cloud Platform Empowerment: Owners Monitor Outlet Dynamics Anytime, Anywhere

Once all monitoring data is aggregated into the Dayu GongxiaoSi management platform, Dayu Electronic can open a dedicated sub-account for the owner entity. Owners can log in to the platform anytime, anywhere via personal computer or mobile phone to view real-time outlet flow data, historical trend curves, and alarm information, greatly enhancing the convenience and transparency of park sewage discharge management. The platform displays key indicators such as outlet flow and supports automatic data alerts and traceability for reverse auditing.

The seamless integration of Dayu Electronic's ultrasonic Doppler flowmeter with DTU, solar power supply, and cloud platform constructs a closed-loop system for industrial park sewage outlet monitoring, featuring precise measurement, wireless transmission, and cloud-based sharing. In the future, Dayu Electronic will continue to be driven by customer needs, providing superior products and services for water environment monitoring and smart water infrastructure development.