发明名称 |
PASSIVE ULTRASONIC RFID ELEVATOR POSITIONING REFERENCE SYSTEM |
摘要 |
An apparatus for measuring a position of a moveable_member (33) including a plurality of transponder modules (11) which includes an electromagnetic transmitter adapted to emit a signal (25) and an acoustic receiver (21) adapted to receive an acoustic signal (23) wherein at least two of the plurality of transponders are disposed about the position to be measured.
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申请公布号 |
KR20060004651(A) |
申请公布日期 |
2006.01.12 |
申请号 |
KR20057009365 |
申请日期 |
2005.05.25 |
申请人 |
OTIS ELEVATOR COMPANY |
发明人 |
OH, JAE HYUK;FINN ALAN;PENG PEI YUAN;KANG PENGJU |
分类号 |
B66B3/02;B66B1/34 |
主分类号 |
B66B3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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