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Sewer Sediment Inspection Based on Multisensor Fusion Considering Sewage Flow

In: Proceedings of the 27th International Symposium on Advancement of Construction Management and Real Estate

Author

Listed:
  • Chen Li

    (Huazhong University of Science and Technology)

  • Ke Chen

    (Huazhong University of Science and Technology)

  • Hanlin Li

    (Huazhong University of Science and Technology)

  • Yixiao Shao

    (Huazhong University of Science and Technology)

  • Hanbin Luo

    (Huazhong University of Science and Technology)

Abstract

Sewers are essential infrastructure for transporting urban wastewater, but their operational efficiency can be compromised by sedimentation. Unfortunately, CCTV (closed-circuit television) and advanced sewer sediment inspection technologies fail to quantify the volume of sediment and accurately locate the sediment distribution. Furthermore, most of the existing technologies are ineffective in a fully loaded sewer. This research presents a multisensor data fusion method for sewer sediment inspection by an autonomous underwater vehicle (AUV). An AUV is equipped with a rotating sonar device, a gyroscope, an accelerometer, and an odometer. Multisensor data fusion is divided into two steps. In the first step, the Kalman filtering technique is applied to fuse gyroscope, accelerometer, and odometer data to solve the problem of AUV localization in sewers with weak or no signal. In the second step, the point cloud data collected by sonar are fused with the fused sensor data to solve the point cloud data offset problem caused by the current and AUV motion. Overall, the proposed method has great practical potential for accurate sediment inspection in each section of a sewer, which can be used to support decision-making in urban sewer maintenance.

Suggested Citation

  • Chen Li & Ke Chen & Hanlin Li & Yixiao Shao & Hanbin Luo, 2023. "Sewer Sediment Inspection Based on Multisensor Fusion Considering Sewage Flow," Lecture Notes in Operations Research, in: Jing Li & Weisheng Lu & Yi Peng & Hongping Yuan & Daikun Wang (ed.), Proceedings of the 27th International Symposium on Advancement of Construction Management and Real Estate, pages 431-439, Springer.
    • Handle: RePEc:spr:lnopch:978-981-99-3626-7_34
    DOI: 10.1007/978-981-99-3626-7_34
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