Online Monitoring System for Manhole Image Liquid Level

● System Architecture and Composition Sensor Monitoring Layer: Includes various monitoring sensors, such as level sensors for real-time monitoring of water level changes in drainage pipes and manholes; flow velocity sensors for measuring water flow speed; flow sensors for calculating water flow rate. Additionally, there are water quality sensors for online monitoring of water quality indicators like pH, temperature, conductivity, suspended solids, and dissolved oxygen; gas sensors for monitoring the concentration of harmful gases such as hydrogen sulfide and methane in pipelines; and sensors for monitoring manhole cover displacement, which automatically alert when issues like cover opening, loss, or loosening occur.

○ Transmission Layer: Primarily consists of wireless measurement and control terminals and wireless transmission networks such as 4G/5G/NB-IoT, responsible for transmitting the data collected by sensors to the monitoring center software in real time and stably, ensuring timely and reliable data transmission without being limited by geographical location or wiring conditions.

○ Data Layer: Receives, stores, and processes data transmitted in real time from telemetry terminals. It includes functions such as data storage, querying, and analysis, providing foundational data support for subsequent statistical analysis and decision-making.

○ Power Supply Layer: The power supply methods for on-site collection and transmission equipment are flexible and diverse. Solar power can be used, which is energy-saving, environmentally friendly, and eliminates the need for frequent battery replacement, ensuring extended power supply even during continuous rainy weather. Battery power is also an option, with some batteries designed for micro-power consumption, featuring low energy usage and long battery life, lasting from 1 to 10 years. In areas with access to mains electricity, mains power can be used, and it can be switched with solar power based on actual needs to ensure the system's continuous and stable operation.

○ Monitoring Center Software: As the core component of the system, it is responsible for receiving, processing, displaying, and managing data from various monitoring points. It includes functions such as real-time data display, historical data querying, data analysis, warning alerts, and remote control, providing comprehensive and intuitive pipeline network operation information for drainage management departments.

● System Functions and Features Online monitoring of various indicators to achieve pipeline network informatization Level and flow monitoring: Through comprehensive monitoring of level, flow velocity, and flow rate, the real-time operational status of the drainage pipeline network can be grasped, providing detailed and accurate data for pipeline network analysis and operational scheduling, helping managers understand dynamic changes in water flow to allocate resources reasonably and optimize scheduling plans.

■ Water quality monitoring: Online monitoring of water quality indicators such as pH, temperature, conductivity, suspended solids, and dissolved oxygen enables real-time understanding of water quality conditions in the drainage pipeline network, timely detection of water pollution issues, providing a basis for environmental protection and sewage treatment, and facilitating targeted management measures to prevent adverse environmental impacts from sewage.

■ Manhole cover displacement monitoring: Automatically alerts when a manhole cover is displaced, enabling timely detection and handling, effectively ensuring public safety and preventing accidents such as pedestrian falls due to displaced covers.

■ Harmful gas concentration monitoring: Continuously monitors the concentration of harmful gases such as hydrogen sulfide and methane in pipelines. Once gas concentrations exceed set warning thresholds, the system automatically alerts, allowing relevant personnel to detect and address issues early, preventing accidents like pipeline explosions due to gas accumulation, and ensuring the safe operation of the pipeline network and the safety of surrounding lives and property.

■ Video monitoring: Video monitoring devices deployed at flood-prone points provide real-time understanding of road surface waterlogging, enabling drainage management departments to take timely flood prevention and drainage measures, such as dispatching drainage equipment and arranging emergency personnel. Infrared video monitoring at key drainage outlets automatically alerts and triggers拍照 when illegal discharges occur at night, providing strong evidence for environmental supervision and law enforcement.

■ Pressure monitoring: Pressure monitoring points set up in pressurized drainage pipe sections automatically alert when pressure exceeds normal ranges, helping to detect issues like pipeline damage and sewage leaks early, enabling prompt repair measures to reduce water resource waste and environmental pollution.

○ Intelligent warning and alerting to promptly detect pipeline network abnormalities Flexible configuration of warning and alert values: Managers can dynamically modify and configure warning and alert values for various measurement indicators in monitoring devices based on specific monitoring and warning objectives, adapting to different pipeline network operational conditions and management needs.

■ Multi-type anomaly automatic alerting: The system automatically alerts when data exceeds limits (e.g., water level too high, abnormal flow velocity, water quality超标), low battery (ensuring normal operation of monitoring devices), network abnormalities (ensuring smooth data transmission), or device failures occur, promptly notifying relevant personnel for quick response and handling, effectively preventing accidents or their escalation, and reducing loss of life and property.

○ Multi-angle statistical analysis to improve management efficiency Diversified data statistics: Automatically统计 hourly averages, daily averages, monthly averages, weekday averages, weekend averages, and other forms of data to meet analytical needs across different time dimensions, providing data support for managers to comprehensively understand pipeline network operational patterns.

■ On-demand generation of charts and thematic maps: Can generate various charts (e.g., bar charts, line charts, pie charts) to visually display data trends; can also generate thematic maps for level, flow velocity, flow rate, etc., clearly presenting changes in various measurement indicators, enabling online analysis of drainage pipeline networks, siltation analysis, waterlogging analysis, and other functions, providing scientific decision-making basis for pipeline network renovation, siltation handling, emergency flood prevention, and other tasks, improving management efficiency and decision-making科学性.

● System Application Scenarios and Significance Daily management of drainage pipeline networks: Helps drainage management departments comprehensively and dynamically understand pipeline network operational status and变化规律, promptly detect issues like pipeline siltation and sewage overflow, enabling quick responses such as pipeline dredging and flood prevention measures to ensure normal operation of the drainage system.

○ Pipeline network operational scheduling: Based on real-time monitoring data and analysis results, provides scientific basis for pipeline network operational scheduling, optimizing scheduling plans, improving drainage efficiency, and reducing energy consumption.

○ Maintenance management: Through long-term monitoring and analysis of pipeline network operational data, maintenance needs and key areas can be identified, allowing for the development of合理的 maintenance plans to extend the pipeline network's service life.

○ Renovation design: Provides effective data support for pipeline network renovation design, such as determining pipeline diameter, slope, and other design parameters based on flow rate, velocity, and other data, improving the科学性 and合理性 of renovation projects.

○ Emergency management: In突发 situations (e.g., heavy rain, pipeline破裂), can promptly provide accurate pipeline network information, helping managers make quick decisions and take effective emergency measures to reduce disaster losses.

○ Enhancing informatization management level: Achieves informatization management of drainage pipeline networks, improving management efficiency and accuracy, reducing the workload and errors of manual inspections, and providing important support for water management in smart city construction.