[특허]Real time solid state register having battery backup

Real time solid state register having battery backup 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01R-022/00 G06F-012/16
출원번호	US-0641385 (1991-01-14)
발명자 / 주소	Coppola Richard (Norcross GA) Street Thomas G. (Lilburn GA) Riggs Richard L. (East Point GA)
출원인 / 주소	Schlumberger Industries, Inc. (Norcross GA 02)
인용정보	피인용 횟수 : 25 인용 특허 : 0

초록 ▼

A microprocessor based time-of-use electricity meter register uses an external real time clock powered by a backup battery during a power outage to measure real time elapsed during the outage. Upon detection of a power outage, line power and real time data are transferred by the microprocessor to an external, non-volatile memory, the external real time clock is energized by the backup battery and the clock reset to accumulate elapsed real time (days, hours, minutes, seconds) during the duration of the outage. Upon resumption of line power, the elapsed real time accumulated by the clock and the content of the non-volatile memory are transferred to the microprocessor, the backup battery is disconnected from the external real time clock and the real time previously stored in the nonvolatile memory is updated by the elapsed real time so that no customer billing data are lost during the outage.

대표청구항 ▼

In an electricity meter having means for obtaining line voltage and current measurements on a power line, processor means including a first real time clock means for accumulating real time (days, hours, minutes, seconds) and processing said line voltage and current measurements to obtain line electrical energy consumption data during predetermined time intervals and first memory means for storing said data, and a power supply for converting line voltage from said power line to an operating voltage to power said processor means: (a) a circuit for retaining real time and line power data during a power line outage, comprising a second memory means; (b) a second real time clock means for accumulating elapsed real time (days, hours, minutes, seconds); (c) a backup battery; (d) line power detector means for detecting line power outages and resumptions; (e) first output means responsive to a line power outage detected by said detector means for: (1) transferring first real time clock and electrical energy consumption data accumulated by said processor means to said second memory means, (2) connecting said backup battery to energize said second real time clock means, and (3) resetting said second real time clock means to enable said second real time clock means to accumulate a real time (days, hours, minutes, seconds) elapsed from the time of the beginning of the outage; (f) second output means responsive to a line power resumption detected by said detector means for: (1) transferring said real time clock and electrical energy consumption data stored in said second memory means to said processor means, (2) transferring the elapsed real time accumulated by said second real time clock means to said processor means, and (3) updating said real time data of said first real time clock means by said elapsed real time; (g) battery testing means for testing said backup battery; and (h) means responsive to said battery testing means for reading the content of said second real time clock means only if said backup battery has at least a predetermined supply capacity.

이 특허를 인용한 특허 (25)

Migita Koji,JPX, Apparatus and method for gradually shutting down a power supply.
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Styduhar, Mark S., Apparatus for providing power control to a real-time clock oscillator.
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Karnowski Mark J., Backup system for a time of day clock in an electronic device.
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Boling, Brian E., Battery switch for downhole tools.
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Clark Michael William ; Heaney James Alfred ; Norris Duane Edward ; Benson ; IV Paul Harrison, Computer system which is operative to change from a normal operating state to a suspend state when a power supply thereo.
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Freibert, Erich, Computer system, method for programming a real-time clock and a computer program product.
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Thurig Andreas,CHX ; Berner Gerhard,CHX ; Ricciardi Bruno,CHX, Consumption meter with memory, display, and contact-less supply of energy from exterior when external power supply voltage is absent.
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Osterloh,Christopher L.; Nagy,Christopher J., Dual source real time clock synchronization system and method.
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Lefebvre Gaston (Sherbrooke CAX) Paquin Reginald (109 ; 2nd. Ave. ; Lac Andre ; La Plaine ; Quebec CAX J0N 1B0 ), Electrical load controller to regulate power consumption.
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Ramirez,Anibal D., Electricity meter with power supply load management.
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Ramirez,Anibal D., Electricity meter with power supply load management.
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Ramirez,Anibal Diego, Electricity meter with power supply load management.
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Ragle Steven J. ; Hayes Robert A. ; King Christopher S. ; Johnson Larsh M., Metering system.
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Steven J. Ragle ; Robert A. Hayes ; Christopher S. King ; Larsh M. Johnson, Metering system.
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Schmidt Jurgen,DEX ; Geib Horst,DEX ; Nikl Erwin,DEX, Method and apparatus utilizing a flash memory device to maintain accurate unit timing.
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Wong Albert C. K. (Golden Valley MN) Jurewicz Romuald M. (St. Louis Park MN) McCormack Michael D. (Robbinsdale MN), Method of determining the condition of a back-up battery for a real time clock.
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Martin, Warren T., Method of timing demand and time-of-use functionality with external clock source.
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Hemminger Rodney C. ; Rogers Peter Richard, Methods and apparatus for oscillator compensation in an electrical energy meter.
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Lelecas, Michael, Power outage alert electronic device.
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Rodenberg ; III Ernest A. ; Borden Robert Richard, Programmable electricity consumption monitor.
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Rodenberg, III,Ernest Adolph; Borden,Robert Richard, Programmable electricity consumption monitoring system and method.
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Yano, Masatoshi, Terminal device and real-time clock control method therefor enabling preservation of clock/calendar information and high information readout speed.
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Burns, Gordon R.; Slater, Byron J., Utility meter having primary and secondary communication circuits.
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Beck, Bernhard, Voltage-dependent meter.
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Balch Richard A. (N. Hampton NH) Ridley Raymond B. (Battle Creek MI) Elmore David D. (Somersworth NH) Germer Warren R. (Hampton NH), Wide range single-phase/polyphase switching power supply.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Real time solid state register having battery backup 원문보기

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Real time solid state register having battery backup 원문보기

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이 특허를 인용한 특허 (25)

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