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http://dx.doi.org/10.7736/KSPE.2013.30.4.383

A Study on the Development of Height Estimation Sensor for Gondola-typed Façade Robot  

Yoon, Jongsu (Korea Electronics Technology Institute)
Kim, Dong Yeop (Korea Electronics Technology Institute)
Park, Chang-Woo (Korea Electronics Technology Institute)
Publication Information
Journal of the Korean Society for Precision Engineering / v.30, no.4, 2013 , pp. 383-389 More about this Journal
Abstract
Demand for high-rising building has arisen. However, its maintenance is usually executed by labour. It could have a severe problem. We proposed a gondola robot to solve it. In this paper, we designed a height estimation sensor for this gondola. It is consist of pan-tilt unit, ARS sensor, and laser sensor. The pan-tilt unit keeps the laser sensor to indicate the gravity direction by referencing the ARS. The laser sensor's range is vertical distance from gondola to ground. However, if there is an obstacle under the gondola, the distance includes its height. To filter it out, we apply a Kalman filter for the height estimation. If the estimated height is changed extremely, the filter decides that there is an obstacle. Then, it remembers the height of obstacle. Other extreme changes of height estimations are reflected. The experimental results using the proposed sensor system show detail flow of the height estimation.
Keywords
Gondola; Height Estimation Sensor; Building Facade;
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  • Reference
1 Gambao, E. and Hernando, M., "System for a semiautomatic façade cleaning robot," Proc. of the International Symposium on Automation and Robotics in Construction, pp. 407-411, 2006.
2 Sun, H., Kim, D. Y., Kwon, J. H., Kim, B.-S., and Park, C.-W., "The position and orientation measurement of gondola using a visual camera," Proc. of the International Symposium on Automation and Robotics in Construction, pp. 693-697, 2011.
3 Kim, D. Y., Kwon, J. H., Sun, H., Kim, B.-S., and Park, C.-W., "Rope attribute measurement system for gondola type facade robot," Proc. of the 2nd International Conference on Construction and Project Management, pp. 103-106, 2011.
4 Thrun, S., Burgard, W., and Fox, D., "Probabilistic Robotics (Intelligent Robotics and Autonomous Agents series), The MIT Press, 2005.