Wireless and machine safety really can go hand in hand. One Siemens' customer, CAMotion, recently delivered wireless safety system as part of the control system it supplied for a gantry crane. The system connects the safety devices on the crane's moving gantry — including light curtains — back to the system's stationary controller. "It's the first wireless safety system that we're aware of," says Bryant. Why wireless? Hard-wiring the safety systems would have been difficult given the crane's layout. Bryant estimates that the wireless system cost about 60 percent less to install than a comparable wired system. Bryant adds that Siemens' PROFINet and PROFISafe safety communications protocol can run over wireless networks, making the installation possible. For more information go to CAMotion.
A Tokyo company, Miraisens Inc., has unveiled a device that allows users to move virtual 3D objects around and "feel" them via a vibration sensor. The device has many applications within the gaming, medical, and 3D-printing industries.
In the last few years, use of CFD in building design has increased manifolds. Computational
fluid dynamics is effective in analyzing the flow and thermal properties of air within spaces. It can be used in buildings to find the best measures for comfortable temperature at low energy use.
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