System and method for improving chemical efficiency of a battery in a flow measurement system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02J-007/00
G08B-023/00
G08C-015/06
G01R-031/36
H04W-004/00
H02J-007/34
H04W-084/18
출원번호
US-0682654
(2012-11-20)
등록번호
US-9910094
(2018-03-06)
발명자
/ 주소
Kassayan, Reza
출원인 / 주소
Badger Meter, Inc.
대리인 / 주소
Boyle Fredrickson, S.C.
인용정보
피인용 횟수 :
0인용 특허 :
5
초록▼
Systems and methods for powering a measurement system are provided. In some aspects, a system includes a high energy density electric cell, storing energy for powering the measurement system; a rechargeable electric cell, being charged by the high energy density electric cell and providing high curr
Systems and methods for powering a measurement system are provided. In some aspects, a system includes a high energy density electric cell, storing energy for powering the measurement system; a rechargeable electric cell, being charged by the high energy density electric cell and providing high current bursts to the measurement system; and a charging control device, coupled between the high energy density electric cell and the rechargeable electric cell, and enabling the high energy density electric cell to charge the rechargeable electric cell. The high energy density electric cell operates at a current which allows the high energy density electric cell to be in its optimal zone of chemical efficiency.
대표청구항▼
1. A measurement system, comprising: a control unit which receives usage data of water, electricity or gas from a sensor; a wireless communication unit coupled to the control unit, wherein the wireless communication unit receives the usage data of water, electricity or gas and transmits the usage da
1. A measurement system, comprising: a control unit which receives usage data of water, electricity or gas from a sensor; a wireless communication unit coupled to the control unit, wherein the wireless communication unit receives the usage data of water, electricity or gas and transmits the usage data of water, electricity or gas via an antenna;a power supply system that includesa high energy density electric cell that stores energy anda rechargeable electric cell that is charged by the high energy density electric cell,wherein the power output from the power supply system consists only of power output by the rechargeable electric cell; anda power supply unit coupled to the power supply system, the control unit and the wireless communication unit, wherein the power supply unit provides power from the rechargeable electric cell of the power supply system to the control unit and the wireless communication unit,wherein the power provided to the wireless communication unit includes high current bursts during the transmission of the usage data of water, electricity or gas via an antenna. 2. The measurement system of claim 1, wherein the power supply system further comprises a charging control device coupled between the high energy density electric cell and the rechargeable electric cell which enables the high energy density electric cell to charge the rechargeable electric cell. 3. The measurement system of claim 2, wherein the high energy density electric cell operates at a current which allows the high energy density electric cell to be in its optimal zone of chemical efficiency. 4. The measurement system of claim 2, wherein the charging control device comprises a comparator for comparing a voltage of the rechargeable electric cell with a first threshold and turning on an enabling signal to enable the high energy density electric cell to charge the rechargeable electric cell when the voltage of the rechargeable electric cell falls below the first threshold. 5. The measurement system of claim 4, wherein the comparator compares the voltage of the rechargeable electric cell with a second threshold, and turns off the enabling signal to stop charging the rechargeable electric cell when the voltage of the rechargeable electric cell reaches the second threshold. 6. The measurement system of claim 4, wherein the charging control device further comprises a voltage regulator coupled between the high energy density electric cell and the rechargeable electric cell that enables the high energy density electric cell to charge the rechargeable electric cell when receiving the enabling signal. 7. The measurement system of claim 6, wherein the voltage regulator is a DC-DC converter. 8. The measurement system of claim 6, wherein the voltage regulator is a low-dropout regulator. 9. The measurement system of claim 1, wherein the high energy density electric cell is a primary lithium battery. 10. The measurement system of claim 1, wherein the rechargeable electric cell is a LiFeSo4 battery, a lithium polymer battery, a nickel-cadmium battery, or a nickel metal hybrid battery. 11. The measurement system of claim 1, wherein the control unit monitors the voltage of the rechargeable electric cell, determines power remaining in the rechargeable electric cell and determines power needed for an upcoming wireless transmission. 12. The measurement system of claim 11, wherein the control unit further determines to turn off the wireless communication unit when the power remaining in the rechargeable electric cell is not enough for the upcoming wireless transmission. 13. The measurement system of claim 12, wherein the control unit further determines to turn on the wireless communication unit when the power remaining in the rechargeable electric cell is enough for the upcoming wireless transmission. 14. The measurement system of claim 11, wherein the control unit turns on a triggering signal to trigger charging of the rechargeable electric cell when the power remaining in the rechargeable electric cell is not enough for the upcoming wireless transmission. 15. The measurement system of claim 14, wherein the control unit turns off the triggering signal, which is used to trigger the charging of the rechargeable electric cell, when the power remaining in the rechargeable electric cell is enough for the upcoming wireless transmission. 16. The measurement system of claim 1, wherein the control unit detects time periods during which the high energy density electric cell charges the rechargeable electric cell, calculates a sum of the time periods, and determines power remaining in the high energy density electric cell based on the sum of the time periods. 17. A power supply system for a measurement system, comprising: a high energy density electric cell that stores energy;a rechargeable electric cell that is charged by the high energy density electric cell and provides power to the measurement system and provides high current bursts during a transmission of usage data of water, electricity or gas from the measurement system via an antenna; anda charging control device coupled between the high energy density electric cell and the rechargeable electric cell wherein the charging control device enables the high energy density electric cell to charge the rechargeable electric cell,wherein the charging control device controls the high energy density electric cell to operate at a current which allows the high energy density electric cell to be in its optimal zone of chemical efficiency,wherein power provided to the measurement system consists only of power output by the rechargeable electric cell. 18. A method for powering a measurement system, the method comprising: comparing a voltage of a rechargeable electric cell with a first threshold, wherein the rechargeable electric cell powers the measurement system and further provides high current bursts to the measurement system during a transmission of usage data of water, electricity or gas from the measurement system via an antenna; andwhen the voltage of the rechargeable electric cell is lower than the first threshold, turning on an enabling signal to enable charging of the rechargeable electric cell by a high energy density electric cell which stores energy charging the rechargeable electric cell;wherein the high energy density electric cell is controlled to operate at a current which allows the high energy density electric cell to be in its optimal zone of chemical efficiency,wherein power provided to the measurement system consists only of power output by the rechargeable electric cell. 19. The method of claim 18, further comprising: comparing the voltage of the rechargeable electric cell with a second threshold; andwhen the voltage of the rechargeable electric cell exceeds the second threshold, turning off the enabling signal. 20. The method of claim 18, further comprising: receiving a triggering signal from the measurement system when power remaining in the rechargeable electric cell is not enough for an upcoming wireless transmission by a wireless communication unit in the measurement system, and triggering charging of the rechargeable electric cell by the high energy density electric cell. 21. The method of claim 18, wherein the high energy density electric cell is a primary lithium battery. 22. The method of claim 18, wherein the rechargeable electric cell is a LiFeSo4 battery, a lithium polymer battery, a nickel-cadmium battery, or a nickel metal hybrid battery. 23. A method for powering a measurement system, wherein the measurement system comprises a control unit for receiving usage data of water, electricity or gas from an interface, a wireless communication unit for transmitting the usage data, and a power supply unit for providing power to the control unit and the wireless communication unit, the power supply unit comprising a high energy density electric cell and a rechargeable electric cell that is charged by the high energy density electric cell, the method comprising: comparing a voltage of a rechargeable electric cell with a first threshold, wherein the rechargeable electric cell powers the measurement system and further provides high current bursts to the measurement system during a transmission of usage data or water, electricity or gas from the wireless communication system via an antenna; andwhen the voltage of the rechargeable electric cell is lower than the first threshold, turning on an enabling signal to enable charging of the rechargeable electric cell by the high energy density electric cell which stores energy for charging the rechargeable electric cell,wherein the high energy density electric cell is controlled to operate at a current which allows the high energy density electric cell to be in its optimal zone of chemical efficiency,wherein power output from the power supply unit consists only of power output by the rechargeable electric cell. 24. The method of claim 23, further comprising: comparing the voltage of the rechargeable electric cell with a second threshold, and turning off the enabling signal when the voltage of the rechargeable electric cell reaches a second threshold. 25. The method of claim 23, wherein the control unit further: detects the voltage of the rechargeable electric cell;determines power remaining in the rechargeable electric cell; anddetermines power needed for an upcoming wireless transmission from the wireless communication unit. 26. The method of claim 25, wherein the control unit further determines to turn off the wireless communication unit when the power remaining in the rechargeable electric cell is not enough for the upcoming wireless transmission. 27. The method of claim 26, wherein the control unit further determines to turn on the wireless communication unit when the power remaining in the rechargeable electric cell is enough for the upcoming wireless transmission. 28. The method of claim 25, wherein the control unit further turns on a triggering signal to trigger the charging of the rechargeable electric cell when the power remaining in the rechargeable electric cell is not enough for the upcoming wireless transmission. 29. The method of claim 28, wherein the control unit further turns off the triggering signal, which is used to trigger the charging of the rechargeable electric cell, when the power remaining in the rechargeable electric cell is enough for the upcoming wireless transmission. 30. The method of claim 23, wherein the control unit further detects time periods during which the high energy density electric cell charges the rechargeable electric cell. 31. The method of claim 30, wherein the control unit further calculates a total charging duration by adding the time periods. 32. The method of claim 31, wherein the control unit further determines an amount of current drained from the high energy density electric cell. 33. The method of claim 32, wherein the control unit further determines power remaining in the high energy density electric cell by subtracting the amount of current drained from a rated capacity of the high energy density electric cell.
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이 특허에 인용된 특허 (5)
Yoshido Koichi (Tokyo JPX), Accurately indicating a status of consumption of a battery by which an electronic circuit is controllably put into opera.
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