| 摘要 |
Methods and apparatus for positively positioning receptacle at a pre-selected location. In a preferred embodiment a system for positioning a receptacle is provided. The system includes a transmitter, a receiver, and an indicator. The transmitter may be on the receptacle and transmits a signal from the current receptacle position. The receiver receives the signal and using the received signal, causes the indicator to indicate whether the receptacle is at the pre-selected position. In other preferred embodiments, the receptacle includes a power supply for the power consuming components on the receptacle. In another preferred embodiment, the transmitter is at the pre-selected position and the receiver is on the receptacle. Methods are also provided which include transmitting and receiving a signal from the current position of the receptacle. From the signal strength it is determined whether the receptacle is at the pre-selected position.
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