Self-powered elevator button
AssigneeThyssen Elevator Capital Corp.
InventorsRandolph Huff, James Nickerson
Life of this patent
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Abstract
An elevator hall call device inductively receives an electrical signal from an interlock wiring circuit by means of a coupling device. The elevator hall call device comprises a capacitive device which stores electrical charge based on the electrical signal received from the interlock wiring circuit by means of the coupling device. Hall call circuitry sends and receives signaling information between at least one elevator controller over the interlock wiring circuit, where the hall call circuitry is coupled to the capacitive device for receiving electrical power based on the stored electrical charge in the capacitive device.
Claims25
An elevator hall call device inductively receiving an electrical signal from an interlock wiring circuit by means of a coupling device, the elevator hall call device comprising:
- an electrical charge storage device for storing electrical charge associated with the electrical signal received from the interlock wiring circuit by means of the coupling device;
- and
- hall call circuitry for sending and receiving signaling information between at least one elevator controller over the interlock wiring circuit, the hall call circuitry coupled to the electrical charge storage device for receiving electrical power based on 10 the stored electrical charge on the electrical charge storage device.
A method of providing power to an elevator hall call button device comprising an electrical charge storage device and hall call circuitry, the method comprising the steps of:
- generating an electrical signal along an interlock wiring circuit;
- inductively coupling the electrical signal from the interlock wiring to the electrical charge storage device, the electrical charge storage device storing an electrical charge associated with the received electrical signal;
- and
- providing electrical power to the hall call circuitry based on the stored electrical charge on the electrical charge storage device.
An elevator signaling device in communication with an elevator interlock wiring, the elevator signaling device comprising:
- a hall call device for generating signaling information;
- a coupling device for receiving modulated control signals from the elevator interlock wiring by means of inductive coupling;
- and
- a transceiver device for generating demodulated control signals from the modulated control signals received from the coupling device, and modulating the generated signaling information received from the hall call device and sending the modulated signaling information to the coupling device, whereby the modulated signaling information is inductively coupled onto the interlock wiring.
Dependencies are inferred from the claim text.