Journal of Geodesy and Geoinformation Science ›› 2023, Vol. 6 ›› Issue (4): 70-78.doi: 10.11947/j.JGGS.2023.0406

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Fault Diagnosis and Separation for a Distributed Rotary-laser Scanning System

Siyang GUO1,2(), Yin GUO1(), Shibin YIN1, Hongbo XIE2, Jigui ZHU2   

  1. 1. Isvision (Hangzhou) Technology Company Limited, Hangzhou 310000, China
    2. School of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China
  • Received:2023-09-07 Accepted:2023-11-22 Online:2023-12-20 Published:2024-02-06
  • Contact: Yin GUO;
  • About author:Siyang GUO E-mail:


The wMPS is a laser-based measurement system used for large scale metrology. However, it is susceptible to external factors such as vibrations, which can lead to unreliable measurements. This paper presents a fault diagnosis and separation method which can counter this problem. To begin with, the paper uses simple models to explain the fault diagnosis and separation methods. These methods are then mathematically derived using statistical analysis and the principles of the wMPS. A comprehensive solution for fault diagnosis and separation is proposed, considering the characteristics of the wMPS. The effectiveness of this solution is verified through experimental observations. It can be concluded that this approach can detect and separate false observations, thereby enhancing the reliability of the wMPS.

Key words: rotary-laser scanning measurement system; least square method; fault diagnosis; fault separation