| 摘要 |
The present invention provides a system for monitoring operation status of an electric machine, a mobile phone therefor and server-based system using the same. The system for monitoring operation status of an electric machine includes a portable unit, being adapted for free movement around the electric machine; an airborne acoustics sensor, being adapted for measuring acoustic data produced by the electric machine at a first position in a path of the free movement; a magnetic field sensor, being adapted for measuring magnetic field data produced by the electric machine at a second position in the path of the free movement; and a processing unit, being adapted for calculating the operation status of the electric machine based on the acoustic data from the airborne acoustics sensor and the magnetic field data from the magnetic field sensor; wherein: the airborne acoustics sensor and the magnetic field sensor are integrated with the portable unit. By integration of the processing unit in the portable unit and thus they can move along with each other, it makes the monitoring system more compact and the selection of the measuring positions more flexible. |
