Energy harvesting zero-speed sensor device, method and system
First Claim
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1. A detachable angular speed sensing device comprising:
- a rotating hub with a single point of attachment to a rotating component, where the rotating hub has a single point of attachment and is integral only to the detachable angular speed sensing device;
a fully self-contained energy harvesting electro-mechanical mechanism that provides internal electrical power;
a control circuit to regulate harvested power and support data transmission;
a speed sensor which measures one or both an angular acceleration and a speed of the rotating component; and
a bi-directional wireless communication circuit that monitors the speed sensor, receives operational parameters and commands and transmits data to one or more remote receiving stations, where the detachable angular speed sensing device functions independent of the rotating component without secondary connections to the rotating component.
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Abstract
This invention provides an angular speed detection and monitoring system comprised of an energy harvesting integrated generator and sensor with wireless data transmission capability, a wireless data relay station and a wireless remote termination station for control wiring connections and digital communications. The invention provides real-time rotational acceleration and speed measurement for continuous process control and ‘Zero-Speed’ detection for simple on-off interlock control and fault monitoring of rotating equipment or moving surfaces.
56 Citations
20 Claims
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1. A detachable angular speed sensing device comprising:
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a rotating hub with a single point of attachment to a rotating component, where the rotating hub has a single point of attachment and is integral only to the detachable angular speed sensing device; a fully self-contained energy harvesting electro-mechanical mechanism that provides internal electrical power; a control circuit to regulate harvested power and support data transmission; a speed sensor which measures one or both an angular acceleration and a speed of the rotating component; and a bi-directional wireless communication circuit that monitors the speed sensor, receives operational parameters and commands and transmits data to one or more remote receiving stations, where the detachable angular speed sensing device functions independent of the rotating component without secondary connections to the rotating component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A speed sensing system used to detect a zero-speed condition of one or more external mechanical components comprising:
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a. a rotating hub with a single point of attachment connected directly to the speed sensing system; b. a rotor attached to the rotating hub; c. one or more sensing units measuring real-time speed and acceleration measurements of one or more external mechanical components including the rotating hub and the rotor; d. a processor monitoring the one or more sensing units, the processor transmitting real-time speed and acceleration measurements of the one or more external mechanical components to a remote termination station; and e. the remote termination station providing electrical signal connections for fault and alarm notification upon a zero-speed condition. - View Dependent Claims (11, 12)
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13. A method of sensing and monitoring one or both a speed and a zero-speed of a mechanical component using an angular sensing device comprising:
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a. connecting a rotational surface of the mechanical component to a speed detection unit where the speed detection unit includes one or more transceivers, a generator and an electronic circuit; b. harvesting energy from rotation of the mechanical component by the generator and the electronic circuit to electrically power the speed detection unit; c. measuring an angular acceleration and speed or zero-speed of a rotating surface of the mechanical component, where the rotating surface has a single point of attachment to the angular sensing device; d. sending feedback on one or both the speed and the zero-speed of the mechanical component wirelessly to a remote termination station, where the remote termination station is equipped with wireless transceivers and wired connections, and powered by an external power source; e. processing the feedback at the remote termination station; and f. sending data, commands and operation parameters through the wired connections from the remote termination station to other equipment. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification