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Rapid information gathering during the initial stage of investigation is an important process in case of disasters. However this task could be very risky for human rescue crews, when the infrastructure of the building has been compromised or the environment contaminated by nuclear, biological, or chemical weapons. To be able to develop robots that can go inside the site instead of humans, several...
This thesis describes a new method that in real time predicts fall and collision in order to support remote control of a tracked vehicle with sub-tracks. A tracked vehicle has high ability of getting over rough terrain. However, it is difficult for an operator at a remote place to control the vehicle's moving direction and speed. Hence, we propose a new path evaluation system based on the measurement...
Mobile robots may be able to aid rescue crews in dangerous environments during search and rescue missions after natural or man-made disasters. In 2006, we began a research project to realize mobile robots that can gather information rapidly at the first stage of a disaster. 3D mapping, which can be an important aid for rescue crews in strategizing rescue missions, is one of our important objectives...
Rollover avoidance for tracked vehicles with sub-tracks is a difficult, but necessary task. In this study, rollover avoidance, specifically in the direction of the roll, is performed using a normalized energy stability margin which requires the estimation of a robot's tumble axis. However, a precise estimation of the tumble axis is very difficult because it requires accurate distributed contact information...
We aim at developing an autonomous rollover protection system for rescue robots. In this study, we propose a method for autonomous rollover protection for tracked mobile robots using distributed touch sensors. We developed touch sensors for tracked robots, and we have also installed them into our developed tracked robot having four flipper arms. We have also explained the system construction and evaluation...
In the search and rescue situation at the disaster area, the searching task should be conducted by robots in order to avoid the second disaster. We study crawler robots that can traverse rough terrains and are used in such search operations. This paper describes the designing of an online simulation environment using which we can develop control algorithms for crawler robots, especially for the robot...
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