Remote length measurement system using a single point laser distance sensor and an inertial measurement unit

In this paper, we propose a remote measurement system consisting of a single point laser distance sensor and an IMU (Inertial Measurement Unit). The movement of the system is estimated using a strapdown inertial navigation algorithm. This movement information is combined with the distance sensor to...

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Bibliographic Details
Published in:Computer standards and interfaces 2017-02, Vol.50, p.153-159
Main Authors: Pham, Duy Duong, Suh, Young Soo
Format: Article
Language:English
Subjects:
Hand-held device
IMU
Inertial sensing devices
Inertial sensor
LIDAR
Mean square values
Position measurement
Position sensing
Remote measurement
Remote sensors
Sensors
Strapdown inertial navigation
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Summary:In this paper, we propose a remote measurement system consisting of a single point laser distance sensor and an IMU (Inertial Measurement Unit). The movement of the system is estimated using a strapdown inertial navigation algorithm. This movement information is combined with the distance sensor to obtain remote point position. The distance sensor is a time-of-flight range finder and can measure distances up to 40m. Using the estimated remote point position, length between remote points is computed. Also, a plane to plane (such as wall to wall) distance is estimated. The maximum root mean square of the error (RMSE) for the length, height, and angle are 2.93cm, 2.23cm and 0.58°, respectively. •A portable remote length measurement system is proposed with cm level accuracy.•The system combines inertial sensor and laser distance sensor.•The main error sources are pointing, movement estimation and distance errors.
ISSN:0920-5489
1872-7018
DOI:10.1016/j.csi.2016.10.009