Teleoperation tests for large-scale indoor information acquisition

Abstract

This paper presents a large-scale teleoperation test by using a multi-channel router. Our test case is information acquisition in emergency situations. The benefits of robots in emergency situations and in environment dangerous for humans is obvious. To be able to teleoperate the robot in an unknown environment a wireless network is usually used. The network must also fullfill some quality constraints to make the teleoperation possible, eg. speed, reliability, delay times, coverage. As the environment can be large one access point for wireless network is not necessary enough. In our test we are using a multi-channel router. Router uses up to three different wireless network that are working on different wireless networks, such as WLAN, 3G, CDMA450/2000. It uses the best network available and in case of a network problem the router changed to another better working wireless network. The multi-channel router worked fine and fullfilled the expectations. The system outline, the used communication system and results made in 0.5 km coverage drive covering two buildings is introduced.