SingTown Technology assists in creating a non-contact sewage monitoring system, low-cost and highly accurate.

In industrial parks and wastewater treatment systems, the quality of water entering the pipelines directly impacts the load on subsequent treatment processes and the lifespan of equipment. Traditional turbidity sensor detection methods suffer from issues such as complex installation, susceptibility to contamination and failure, and slow response times, making them difficult to adapt to the complex environments of multi-source mixed-flow inlets. To address this, environmental equipment manufacturers plan to introduce SingTown Technology's OpenMV intelligent camera visual detection technology for real-time monitoring of water turbidity at the inlet of wastewater pipelines.

The system is fixed above or to the side of the pipeline via a camera, capturing real-time images of the incoming water flow. It assesses water clarity based on parameters such as brightness, colour contrast, and texture distribution. When turbidity exceeds the set threshold—such as reduced greyscale, uneven brightness, or dense impurity distribution—the system automatically outputs a high-level signal to trigger a relay, enabling linked equipment alarms or automatic activation of discharge devices. This solution significantly enhances the intelligence and responsiveness of sewage monitoring while reducing maintenance costs.

The industrial wastewater monitoring system, developed based on SingTown Technology's OpenMV platform, integrates machine vision algorithms, image recognition, and industrial control systems to successfully achieve intelligent identification and real-time control of water turbidity at pipeline inlets.

The system captures water flow imagery via a high-sensitivity image sensor and utilises built-in algorithms to extract features such as average brightness, pixel variance, and colour distribution, enabling real-time detection by the integrated algorithms.

When the water body is detected to exhibit low brightness, high contrast, or distinct grey-brown distribution characteristics, it is determined to be in a "high turbidity" state, and a high-level signal is immediately output. The signal can directly drive a relay module, linking to activate pumps, valves, or alarms, alerting maintenance personnel to promptly address the anomaly.

In industrial settings with significant ambient light variations, the system also supports automatic exposure and adaptive regional thresholding, ensuring stable recognition performance both day and night. Additionally, the camera features an IP protection rating design, enabling long-term operation in humid and dusty environments.

Compared to traditional turbidity sensors, this solution does not require direct contact with water, avoiding issues of corrosion and contamination. Additionally, the edge AI detection response time is less than one second, supporting continuous video recognition mode, making it more suitable for dynamic monitoring of fast-flowing and frequently changing water currents.

This solution, developed based on SingTown Technology's OpenMV, is suitable for scenarios such as wastewater treatment equipment manufacturers, environmental monitoring enterprises, and industrial park water quality management units. It can be integrated with PLCs, microcontrollers, or industrial gateways to achieve edge deployment, enabling an intelligent closed-loop system of image recognition and automatic control. This assists enterprises in building a low-cost, efficient, and precise water quality monitoring system.