Energy harvesting circuit for life-sensing hose assembly
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16L-011/127
G01M-003/18
G01M-005/00
F16L-025/01
G01N-027/02
H02J-007/00
H02J-007/34
출원번호
US-0646903
(2013-03-13)
등록번호
US-10024465
(2018-07-17)
우선권정보
IN-1346/2012 (2012-11-22)
국제출원번호
PCT/US2013/030966
(2013-03-13)
국제공개번호
WO2014/081459
(2014-05-30)
발명자
/ 주소
Al-Atat, Hassan
Bhutada, Pradeep Gokuldasji
Surase, Nilesh Kailasrao
Betsinger, James Dean
출원인 / 주소
Eaton Intelligent Power Limited
대리인 / 주소
Merchant & Gould P.C.
인용정보
피인용 횟수 :
0인용 특허 :
26
초록▼
A hose monitoring system and a method of monitoring a hose are disclosed. A system includes a hose assembly including a hose having a first conductive layer and a second conductive layer, and a monitoring circuit in electrical communication with the first and second conductive layers. The system als
A hose monitoring system and a method of monitoring a hose are disclosed. A system includes a hose assembly including a hose having a first conductive layer and a second conductive layer, and a monitoring circuit in electrical communication with the first and second conductive layers. The system also includes an energy harvesting unit in electrical communication with the monitoring circuit, the energy harvesting unit including one or more energy harvesters for providing electrical energy to the monitoring circuit.
대표청구항▼
1. A hose monitoring system comprising: a hose assembly including a hose having a first conductive layer and a second conductive layer;a monitoring circuit in electrical communication with the first and second conductive layers, the monitoring circuit configured to monitor hose degradation of the ho
1. A hose monitoring system comprising: a hose assembly including a hose having a first conductive layer and a second conductive layer;a monitoring circuit in electrical communication with the first and second conductive layers, the monitoring circuit configured to monitor hose degradation of the hose assembly by assessing an electrical characteristic of the hose assembly based on a voltage applied across the first conductive layer and the second conductive layer, the monitoring circuit configured to detect an electrical characteristic of the hose assembly; andan energy harvesting unit in electrical communication with the monitoring circuit, the energy harvesting unit including one or more energy harvesters for providing electrical energy to the monitoring circuit, the one or more energy harvesters configured to generate electrical energy in response to a physical condition of the hose assembly and comprising at least one of a thermal sensor configured to generate energy in response to a temperature gradient between layers of the hose assembly, an electrostatic energy harvesting unit configured to collect static charges developed in the hose, or a piezoelectric energy harvesting unit configured to generate energy in response to stress applied to a piezo band extending around at least a portion of the hose. 2. The hose monitoring system of claim 1, further comprising an energy booster circuit electrically connected between the energy harvesting unit and the monitoring circuit. 3. The hose monitoring system of claim 2, further comprising a rechargeable energy storage unit electrically connected to the energy booster, the rechargeable energy storage unit configured to store energy received from the energy harvesting unit for use by the monitoring circuit. 4. The hose monitoring system of claim 3, wherein the rechargeable energy storage unit comprises a capacitor. 5. The hose monitoring system of claim 3, wherein the rechargeable energy storage unit comprises a battery. 6. The hose monitoring system of claim 1, wherein the monitoring circuit includes a communication module configured to provide wireless communication to a receiver positioned remotely from the monitoring circuit. 7. The hose monitoring system of claim 1, wherein the energy harvesting unit includes a plurality of energy harvesters of varying types. 8. The hose monitoring system of claim 1, wherein the monitoring circuit is electrically connected across a nipple and a socket of a hose assembly to respectively connect to the first and second conductive layers. 9. The hose monitoring system of claim 1, wherein the monitoring circuit is configured to periodically determine an electrical characteristic of the hose assembly and communicate the electrical characteristic to a receiver positioned remotely from the monitoring circuit. 10. A method of operating a hose monitoring system, the method comprising: capturing energy via an energy harvesting unit associated with a hose assembly in response to a physical condition of the hose assembly, the hose assembly including a hose having a first conductive layer and a second conductive layer, the energy harvesting unit comprising at least one of a thermal sensor configured to generate energy in response to a temperature gradient between layers of the hose assembly, an electrostatic energy harvesting unit configured to collect static charges developed in the hose, or a piezoelectric energy harvesting unit configured to generate energy in response to stress applied to a piezo band extending around at least a portion of the hose;providing the energy to a monitoring circuit in electrical communication with the first and second conductive layers the monitoring circuit configured to monitor hose degradation of the hose assembly; andin response, assessing an electrical characteristic of the hose assembly via the monitoring circuit based on a voltage applied across the first conductive layer and the second conductive layer. 11. The method of claim 10, further comprising storing the energy captured by the energy harvesting unit in an energy storage unit. 12. The method of claim 10, further comprising enabling operation of an oscillator of an energy booster circuit electrically connected between the energy harvesting unit and the monitoring circuit, the oscillator enabling a charge pump configured to enable storage of energy in the energy storage unit. 13. The method of claim 10, further comprising delivering energy to the monitoring circuit from the energy storage unit. 14. The method of claim 10, wherein assessing an electrical characteristic of the hose assembly comprises applying the voltage across the first and second conductive layers to determine a resistance of the hose assembly. 15. The method of claim 10, wherein assessing the electrical characteristic of the hose assembly occurs periodically. 16. The method of claim 10, further comprising aggregating energy from a plurality of energy harvesting units, the plurality of energy harvesting units including at least first and second different types of energy harvesting units. 17. A hose monitoring system comprising: a hose assembly including a hose having a first conductive layer and a second conductive layer;a monitoring circuit in electrical communication with the first and second conductive layers the monitoring circuit configured to monitor hose degradation of the hose assembly by assessing an electrical characteristic of the hose assembly based on a voltage applied across the first conductive layer and the second conductive layer;an energy harvesting unit including a plurality of energy harvesters the plurality of energy harvesters including an energy harvester configured to generate electrical energy in response to a physical condition of the hose assembly; andan energy booster circuit including an energy storage unit and a charge pump, the energy booster circuit electrically connected between the energy harvesting unit and the monitoring circuit, the charge pump configured to enable storage of energy received from the energy harvesting unit in an energy storage unit, the energy storage unit electrically connected to the monitoring circuit and providing power to the monitoring circuit;wherein the plurality of energy harvesters includes at least one of a thermal sensor configured to generate energy in response to a temperature gradient between layers of the hose assembly, an electrostatic energy harvesting unit configured to collect static charges developed in the hose, or a piezoelectric energy harvesting unit configured to generate energy in response to stress applied to a piezo band extending around at least a portion of the hose. 18. The hose monitoring system of claim 17, wherein the monitoring circuit includes a communication circuit configured to communicate with a remote monitor. 19. A hose assembly comprising: a hose assembly including a hose having a first conductive layer and a second conductive layer;a monitoring circuit in electrical communication with the first and second conductive layers, the monitoring circuit configured to monitor hose degradation of the hose assembly by assessing an electrical characteristic of the hose assembly based on a voltage applied across the first conductive layer and the second conductive layer; andan energy harvesting unit including a thermal energy harvester integrated with the hose to generate an electrical signal based on a temperature gradient across the first and second conductive layers of the hose, the electrical signal connected to the monitoring circuit and used by the monitoring circuit to generate the voltage. 20. The hose assembly of claim 19, further comprising an energy booster circuit electrically connected to the energy harvesting unit and configured to collect harvested energy from the thermal energy harvester in an energy storage unit.
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