In today's rapidly developing information technology era, the Internet of Things technology has penetrated into every aspect of our lives, and the field of sewage treatment in limited underground spaces is no exception. In the context of pursuing environmental protection and efficiency, intelligent septic tanks are of great significance in ensuring effective sewage treatment, maintaining the ecological environment, and improving the quality of life.

The intelligent septic tank system integrates advanced sensor technology, data communication technology, and cloud computing technology to achieve comprehensive monitoring and management of septic tanks. Deploy high-precision sensors in the system to collect real-time data on liquid level, temperaturepHValue, gas concentration (such as methane, hydrogen sulfide) and other key parameters, and convert raw physical quantity data into electrical or digital signals. Using data communication technology and adopting low-power wide area network（LPWAN）In the middleNB - IoTNarrowband Internet of Things (Narrowband IoT) transmission protocol encapsulates signals into specific format data packets, sends them to base stations according to specified frequencies and channels, and then transmits them to management platforms.

The data arriving at the management platform will be processed using cloud computing technology. First, preprocess the data and use filtering algorithms to remove noise. Identify and correct erroneous data using statistical methods, and fill in missing values using methods such as mean and interpolation to ensure accurate and complete data. Next, we will enter the data analysis stage, using clustering analysis, association rule mining and other data mining algorithms, combined with statistical analysis methods, to deeply analyze the data, judge the operation status of the septic tank, predict potential faults such as blockage and gas leakage. Ultimately, the analysis results will be visualized in the form of visual charts, providing decision-making basis for operation and maintenance personnel.

With the deep integration of these technologies, the intelligent septic tank system achieves precise, efficient, and sustainable management of septic tanks. It can monitor the situation in the pool in real time, timely warn of cleaning needs, avoid sewage overflow, intelligently regulate the treatment process, improve treatment efficiency, and remotely transmit data through the Internet of Things to facilitate operation and maintenance management, reducing manpower and maintenance costs.