What are the characteristics of an urban pipeline network flow monitoring system?

　　City Pipeline Network Flow Monitoring The system collects real-time data on flow velocity, water level, and flow rate from the urban pipeline network. Through the command center’s intelligent urban flood‑management platform, it enables centralized management and real-time monitoring of stormwater and sewage pipeline flow, water levels, and flow velocities, providing timely early warnings and continuous surveillance. It can accurately and swiftly pinpoint the location of alarmed pipelines and transmit the collected data via a data‑transmission network to various application systems. This system furnishes a solid basis for refined urban drainage management, offers scientifically sound and effective data support for emergency decision‑making and command operations as well as industrial applications, and thereby fosters sustained growth in both economic and social benefits.

Characteristics of the urban pipeline network flow monitoring system:

　　1. The urban pipeline network flow monitoring system employs advanced network communication, computer-based measurement and control, data acquisition, and sensor technologies. Data are collected by telemetry terminals at remote stations, transmitted wirelessly to the central station, and stored in the central database. The central station then disseminates data and generates, analyzes, and manages early warning information.

　　2. The online monitoring system for liquid level and flow in discharge pipelines primarily involves installing flow‑and‑level monitoring devices at key nodes along the discharge outlet, which communicate with the central monitoring system. This enables real-time tracking of changes in flow rate, water level, and flow conditions within the monitored area, providing timely online data to support assessments of overall overflow risk. The system also encompasses the construction of telemetry stations and a central station. Monitoring stations consist mainly of water‑level and flow‑rate measurement units, which integrate Doppler flow meters and telemetry terminals with GPRS transmission and battery power. Data from these stations are transmitted wirelessly via GPRS to the central station, where dedicated acquisition software receives the real-time information and stores it in a database. Through map‑based visualization, the system facilitates query and display of monitoring data, analysis of water‑level and flow‑rate trend curves, as well as data retrieval and report printing.

　　3. Key monitoring points include inspection pits, stormwater inlets, and sewage discharge outlets. Automated monitoring is a crucial component of water resources and water‑services informatization. The pipeline network flow‑monitoring system can continuously track water levels and flow rates at all inlet and outlet locations within the jurisdiction, enabling real-time scheduling, management, control, and monitoring of stormwater inlets and river‑channel discharge points under the authority of the managing agency, thereby enhancing its capacity for rapid response and effective handling across diverse environmental conditions.

　　4. The pipeline flow monitoring system can measure and record parameters such as water temperature, flow velocity, and water level, and can be configured in either real-time mode (with automatic, real-time transmission and reception of monitoring data) or timed‑sampling mode (with scheduled sampling and data transmission). Compact and easy to install: the host unit features an integrated design, and the sensor has no mechanical rotating parts, eliminating issues like sediment blockage, entanglement with debris, or interference from aquatic vegetation. It is well suited for environments with high suspended sediment concentrations and abundant floating materials, such as water hyacinth and other plant matter. Fully functional: it provides real-time monitoring of battery voltage, water temperature, flow velocity, flow rate, and water level, while also offering onboard data storage. The sensor is highly resistant to interference and boasts an IP68 rating for waterproof and dustproof performance.

　　5. Pipeline Network Flow Monitoring System flow‑measurement characteristics: high measurement accuracy, wide measurement range—capable of measuring both low‑ and high‑voltage circuits; high resolution and sensitive induction, with no limitation imposed by the start‑up flow rate; fast response time, enabling measurement of both instantaneous and average flow rates; linear measurement, with calibration curves that do not require K or C coefficients.