Path Re-planning of cranes using real-time location system

Cheng Zhang*, Amin Hammad, Homam AlBahnassi

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

10 Citations (Scopus)


The numbers of reported accidents related to cranes are increasing during the past 10 years. Although simulation and visualization software are available for path planning of cranes, the high dynamic characteristics of on-site conditions often require re-planning the crane's path to ensure safety and efficiency. Any unpredicted objects on site should be detected and tracked in real time and the resulting information should be used for path re-planning. This paper proposes an approach for monitoring and re-planning path of cranes on construction sites using a real-time location system. Data collected from ultra wide band (UWB) sensors attached to the equipment, in addition to an up-to-date 3D model of the construction site, are used to detect any possible collisions or other conflicts related to the operations of the cranes. Re-planning algorithms are discussed to generate a new plan in real time. The advantages of the proposed approach are: more awareness of dynamic construction site conditions, a safer and more efficient work site, and a more reliable decision support based on good communications.

Original languageEnglish
Number of pages8
Publication statusPublished - 2009
Externally publishedYes
Event2009 26th International Symposium on Automation and Robotics in Construction, ISARC 2009 - Austin, TX, United States
Duration: 24 Jun 200927 Jun 2009


Conference2009 26th International Symposium on Automation and Robotics in Construction, ISARC 2009
Country/TerritoryUnited States
CityAustin, TX

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