ELEVATOR WIRELESS COMMUNICATION AND POWER TRANSFER SYSTEM
First Claim
1. An elevator system, comprising:
- an elevator car disposed in and constructed and arranged to move along a hoistway;
a linear propulsion system constructed and arranged to propel the elevator car, the linear propulsion system including a plurality of primary coils engaged to and distributed along the hoistway generally defined by a stationary structure;
a wireless power transfer system configured to inductively transfer power to the elevator car, the wireless power transfer system including a secondary coil mounted to the elevator car and configured to be induced with electromotive forces by the plurality of primary coils and output power for use by the elevator car; and
a communication system configured to utilize the secondary coil and the plurality of primary coils to exchange a communication data signal.
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Accused Products
Abstract
An elevator system includes an elevator car disposed in and arranged to move along a hoistway. A linear propulsion system of the elevator system is constructed and arranged to propel the elevator car, and includes a plurality of primary coils engaged to and distributed along the hoistway generally defined by a stationary structure. A wireless power transfer system of the elevator system is configured to inductively transfer power to the elevator car. The wireless power transfer system includes a secondary coil mounted to the elevator car and is configured to be induced with electromotive forces by the primary coils and output power for use by the elevator car. A communication system of the elevator system is configured to utilize the secondary coil and the plurality of primary coils to exchange a communication data signal.
28 Citations
21 Claims
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1. An elevator system, comprising:
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an elevator car disposed in and constructed and arranged to move along a hoistway; a linear propulsion system constructed and arranged to propel the elevator car, the linear propulsion system including a plurality of primary coils engaged to and distributed along the hoistway generally defined by a stationary structure; a wireless power transfer system configured to inductively transfer power to the elevator car, the wireless power transfer system including a secondary coil mounted to the elevator car and configured to be induced with electromotive forces by the plurality of primary coils and output power for use by the elevator car; and a communication system configured to utilize the secondary coil and the plurality of primary coils to exchange a communication data signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A wireless communication system for exchanging communication data with an elevator car constructed to move in a hoistway, the wireless communication system comprising:
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an intelligent signal modulator mounted to the elevator car and configured to receive an elevator car communication data signal; a secondary coil mounted to the elevator car and configured to induce a current for elevator car power and receive the communication data signal from the intelligent signal modulator; a plurality of primary coils distributed along the hoistway; and
configured to transmit power to the secondary coil when a primary coil of the plurality of primary coils is proximate to the secondary coil and is selectively energized, and to receive the communication data signal from the second coil; anda demodulator configured to receive the communication data signal from the plurality of primary coils. - View Dependent Claims (19, 20, 21)
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Specification