System and method for power line communication to control fans and other appliances
AssigneeFocus Universal Inc.
InventorDesheng Wang
Life of this patent
Estimating the term…
Abstract
Disclosed is a system and method for power line control of electrical fans. The system generates a sinusoidal wave using a crystal oscillator. Control information is added to the sinusoidal wave by routing the wave through a phase inversion circuit a predetermined intervals according to a protocol. The resulting control signal is sent on a power line. The control signal is received using a crystal filter, decoded and converted to executable instructions for controlling a fan motor.
Claims20
A system for controlling devices via power line control, comprising:
- a controller which sends commands indicative of a user's operation of the controller;
- an emitter electrically connected to the controller, the emitter including:
- a crystal oscillator configured to transmit a sinusoidal wave at a transmission frequency;
- a switch electrically connected to the crystal oscillator;
- a phase inversion circuit electrically connected to a first side of the switch;
- and
- a bypass electrically connected to a second side of the switch;
- a power line electrically connected to the phase inversion circuit;
- and
- one or more smart fans configured to be operated in response to a signal from the controller.
A method for providing power line control, comprising:
- generating a sinusoidal wave using a crystal oscillator;
- forming a control signal by routing the sinusoidal wave through a phase inversion circuit;
- forming phase inversion spikes at predetermined intervals on the sinusoidal wave;
- outputting the control signal to a power line;
- receiving the control signal on a crystal filter electrically connected to the power line;
- converting the control signal to executable instructions;
- and
- controlling a motor based on the converted control signal.
A system for providing power line control, comprising:
- a controller configured to send commands;
- an emitter configured to emit a sinusoidal wave;
- and
- at least one smart fan electrically connected to a power line;
- wherein, when a user operates the controller to send a command, the controller is configured to cause the emitter to generate a sinusoidal wave having control information comprising phase inversion spikes and spacing between the spikes and to transmit the sinusoidal wave via the power line to control the at least one smart fan.
Dependencies are inferred from the claim text.