The introduction of the Liancheng Smart Cloud Platform has accelerated the intelligent transformation of conventional submersible sewage pumps. By integrating Internet of Things technology, a high-performance data acquisition card and a communication module into the pump, multiple monitoring signals can be transmitted through a four-core rubber-sheathed shielded flexible cable.
This technological development has led to the creation of the
WQ Series IoT smart submersible sewage pump.
The smart pump solution is designed primarily for submersible sewage pumps with a rated power of
30 kW or above.
Limitations of Traditional Submersible Sewage Pump Control
Traditional submersible sewage pumps are generally equipped with built-in water leakage protection and motor overheating protection. These protection signals are transmitted to the control cabinet through cables as on/off contact signals, allowing the control system to protect the pump when an abnormal condition occurs.
However, this conventional approach provides only basic protection and limited control capabilities.
In some applications, additional monitoring points require thicker control cables or even multiple cables. This makes signal identification more complicated and may increase potential leakage risks at cable entry points.
To overcome these limitations, Liancheng developed the WQ Series IoT smart submersible sewage pump by deeply integrating IoT technology with the design and manufacturing of submersible sewage pumps.
The resulting solution is a new type of integrated intelligent submersible sewage pump. Through sensors, data acquisition and communication modules, and a display panel, the system can perform:
Pump operating-data acquisition
Fault diagnosis
Remote data transmission
Real-time condition monitoring
Remote pump control
Unattended operation
When connected to the Liancheng Smart Cloud Platform, the system can improve sewage pumping station management efficiency and reduce operation and maintenance costs.
Achieving these benefits requires addressing two fundamental questions:
- How can the submersible sewage pump be connected to the Internet of Things?
- How can the pump be intelligently controlled after it is connected?
The IoT Smart Submersible Sewage Pump Solution
Liancheng developed an advanced solution for the IoT smart submersible sewage pump. The product combines two core attributes:
connectivity and intelligence.
Under IoT-based control, innovative structural and control-system designs provide the submersible sewage pump with intelligent monitoring and management capabilities.
Technical development focused on two principal modules:
- IoT sewage pump design
- Intelligent pump control
The application of key technologies in these two modules ultimately resulted in a complete implementation solution.
1
IoT Sewage Pump Design
The pump incorporates an integrated data acquisition and communication module. It collects operating and condition-monitoring data from the submersible sewage pump in real time, including:
This integrated design provides the data required for pump condition monitoring, alarm management and fault diagnosis.
2
Intelligent Pump Control
Smart Sewage Pump Control Cabinet
The smart sewage pump control cabinet displays pump operating conditions and alarm information in real time. It automatically starts and stops the pump according to liquid-level signals and supports IoT data uploading.
The collected information can support professional diagnostic services, helping users improve inspection efficiency and equipment maintenance. Earlier identification of abnormal operating conditions can help prevent hidden risks and reduce operation and maintenance costs.
Smart Cloud Platform Monitoring
The WQ Series IoT smart submersible sewage pump can be connected to a plant automation control system.
A matching outdoor control cabinet allows the pumping system to operate without a conventional pump room and supports unattended operation, significantly reducing the investment required from users.
When combined with the Liancheng Smart Cloud Platform, the system supports:
- Remote control
- Real-time monitoring
- Unattended operation
- Cloud-based operation and maintenance management
Mobile Access to Pump Data
Users can view the pump’s main operating parameters locally through a mobile device. The system can also be connected to the Smart Cloud Platform for centralized operation and maintenance management.
3
Application of Key Technologies
The key technologies behind the solution are
connectivity and intelligence.
These technologies are implemented through an integrated process of sensing, connection, analysis and response.
The submersible sewage pump therefore evolves from a device capable only of remote start and stop into a comprehensive system integrating:
- Intelligent sensing
- Network transmission
- A cloud-based platform
- Intelligent algorithms
This gives each pump the ability to sense operating conditions, process information and communicate with the wider control and management system.
4
Implementation of the Smart Pump Monitoring System
1
Intelligent Pump Monitor
The submersible sewage pump can be equipped with an intelligent pump monitor consisting of a data acquisition card and a display controller panel.
2
Integrated Data Acquisition Card
The data acquisition card is installed inside the terminal chamber of the upper end cover of the submersible motor.
It collects different types of pump condition data through dedicated sensors:
- PT100 temperature sensors measure the temperatures of the upper and lower motor bearings.
- PT100 temperature sensors also measure the temperature of each phase winding.
- A humidity sensor measures humidity inside the motor terminal chamber.
- A vibration sensor measures bearing vibration frequency.
- Oil-water probes or float-switch-type leakage probes detect water ingress in the oil chamber, lower motor chamber and terminal chamber.
3
RS-485 Signal Conversion and Transmission
The data acquisition card converts all real-time motor protection and monitoring signals into RS-485 communication signals and transmits them to the display controller.
This enables real-time data display and alarm notification.
4
Display and Alarm Configuration
The display controller provides simultaneous real-time display of temperature, humidity and vibration-frequency data.
Users can:
- Configure fault alarm thresholds
- Define output ports according to operating requirements
- View multiple monitoring parameters in real time
- Connect the display controller to the data acquisition card through RS-485
The RS-485 connection simplifies the wiring required between the pump monitoring components.
Results of the IoT Smart Pump Solution
The development and application of the intelligent pump monitor deliver clear operational benefits.
The monitor combines a data acquisition card with a display controller panel. The display controller presents multiple temperature, humidity and vibration-frequency signals in real time. Users can freely configure fault alarm thresholds and customize output ports according to system requirements.
Communication between the data acquisition card and the display controller is completed through
RS-485, reducing wiring complexity.
Monitoring signals can also be transmitted through the Internet of Things. Through the Liancheng Smart Cloud Platform, users can monitor operating parameters and control pump operation remotely.
Innovative Value
Following this intelligent upgrade, the WQ Series IoT smart submersible sewage pump provides more comprehensive monitoring and smarter control, supporting full lifecycle management of submersible sewage pump equipment.
Compared with traditional control methods, the system represents a substantial improvement in real-time visibility and remote-control capability.
The application of these key technologies addresses three common limitations of conventional submersible sewage pumps:
By supporting unattended operation and
predictive maintenance, the IoT smart submersible sewage pump significantly improves the safety and operational performance of sewage drainage systems.
Post time: Aug-26-2026