Development of Sensor Network Deployment Method by Dropping and Throwing Sensor Node for Gathering Disaster Area Information in Underground Space

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In recent years, mitigation measures have been discussed to reduce the damage caused when a disaster strikes. For the information-gathering support system for such mitigation activities, we have proposed a robot sensor network system, in which a teleoperated high-mobility rescue robot deploys a wireless sensor network to gather disaster information in post-disaster underground spaces. In this report, a prototype wireless sensor node throwing deployment device was developed and evaluated for information gathering in a closed space divided by obstacles that are difficult for the robot to overcome. A mechanism controlling a cable length that unreels by throwing of wired sensor node is also developed and evaluated. Then, an experiment confirmed the performance of proposed systems.