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US4213119A
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US
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Remote meter reading system providing demand readings and load control from conventional KWH meters
Assignee: WESTERN BANK LAS CRUCES
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Filing: 1977-11-07
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Granted: 1980-07-15
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Expires: 1997-11-07
Abstract
Abstract An electro-optical remote meter reading system providing automatic load control and time related and peak demand readings from conventional electric power meters, including an electro-optical monitor unit having a non-contact meter scanner providing meter data to a digital storage and readout unit, and an electro-optical transponder effective to receive and to transfer data from the latter unit and to convert such data into a train of laser radiation pulses which are emitted in response to interrogation by a laser radiation pulse from a remote mobile interrogator unit which triggers the noncoded interrogation of the transponder. The interrogator includes a laser receiver and a pulse converting sub-system and is associated with further digital data processing equipment. A variant of the reading system interacts with a plurality of meters in a common location and provides sequential interrogation of a common, i.e. single, transponder, associated with the plurality of meters.
Inventors
- 👤 Ernest M. Ward
- 👤 Steven M. Ward
- 👤 Michael A. Dils
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:27
CPC Classifications
H; H04; H04B; H04B10/00; H04B10/11; H04B10/114; H04B10/1143; G; G01; G01D; G01D4/00; G01D4/002; G01D4/006; G01D4/008; G08; G08C; G08C23/00; G08C23/04; H04Q; H04Q9/00; H04Q9/14; Y; Y02; Y02B; Y02B90/00; Y02B90/20; Y04; Y04S; Y04S20/00; Y04S20/30
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
179 words
An electro-optical remote electrical utility meter reading system comprising: first means generating a plurality of signals with each signal representing a predetermined quantity of the utility measured and with the number of signals generated being quantitatively in direct proportion to the utility measured by the meter; second means associated with said first means and being adapted to convert said signals into digital pulses; third means having a memory receiving and storing said digital pulses; fourth means having a memory module with logic circuitry providing time correlated intelligence reflecting the rate at which increments of electrical power are consumed; fifth means comprising an electro-optical transponder effective in response to interrogation by laser radiation pulses to cause said third means to transfer pulses from said third means to said fifth means, and to emit said pulses in the form of laser radiation; sixth means comprising an interrogator at a location remote from said transponder to trigger said interrogation and to receive said pulses from said transponder; seventh means receiving signals from said interrogator for selectively providing intelligence reflecting the measured quantities.
Claim 2
Dependent Claim
179 words
An electro-optical remote electrical utility meter reading system comprising: first means generating a plurality of signals with each signal representing a predetermined quantity of the utility measured and with the number of signals generated being quantitatively in direct proportion to the utility measured by the meter; second means associated with said first means and being adapted to convert said signals into digital pulses; third means having a memory receiving and storing said digital pulses; fourth means having a memory module with logic circuitry providing time correlated intelligence reflecting the rate at which increments of electrical power are consumed; fifth means comprising an electro-optical transponder effective in response to interrogation by laser radiation pulses to cause said third means to transfer pulses from said third means to said fifth means, and to emit said pulses in the form of laser radiation; sixth means comprising an interrogator at a location remote from said transponder to trigger said interrogation and to receive said pulses from said transponder; seventh means receiving signals from said interrogator for selectively providing intelligence reflecting the measured quantities.
Claim 3
Dependent Claim
27 words
A system according to claim 1, wherein said fourth means includes circuitry providing a digital representation of utility consumed during multiple, mutually exclusive time of day periods.
Claim 4
Dependent Claim
18 words
A system according to claim 2, wherein mutually exclusive time of day periods consist of three, eight-hour periods.
Claim 5
Dependent Claim
21 words
A system according to claim 1, wherein said fourth means includes circuitry providing a digital representation of electrical power consumption rate.
Claim 6
Dependent Claim
27 words
A system according to claim 4, wherein said consumption rate is determined by counting the number of electrical meter calibration wheel revolutions occuring during a fifteen-minute period.
Claim 7
Dependent Claim
30 words
A system according to claim 1, wherein said fourth means includes digital comparator circuitry and memory registers effective to store the maximum utility demand rate occuring during a billing period.
Claim 8
Dependent Claim
33 words
A system according to claim 1, wherein said fourth means includes fixed threshold comparator circuitry and memory registers effective to store the total utility consumed at a rate exceeding a predetermined critical threshold.
Claim 9
Dependent Claim
54 words
A system according to claim 1, wherein said third means includes a master nonvolatile memory storing the total accumulated meter reading in conjunction with said fourth means with memories storing the total utility consumed at a rate exceeding a predetermined critical threshold and the maximum value of consumption rate for a given billing period.
Claim 10
Dependent Claim
35 words
A system according to claim 1, wherein said fourth means includes a fixed threshold comparator circuit effective to provide a load control output when utility is consumed at a rate exceeding a predetermined critical value.
Claim 11
Dependent Claim
28 words
A system according to claim 9, wherein said output control is automatic and comprises a digital load control command effective to disconnect predetermined increments of the metered load.
Claim 12
Dependent Claim
30 words
A system according to claim 9, wherein said output control comprises an electronic signal effective to drive biofeedback indicators informing the consumer that the consumption rate exceeds the critical value.
Claim 13
Dependent Claim
40 words
A system according to claim 1, wherein said third means includes a master nonvolatile memory storing the total accumulated meter reading in conjunction with said fourth means wherein memories store meter readings accumulated during three unique eight hour periods daily.
Claim 14
Dependent Claim
173 words
An electrooptical remote meter reading system, in which the meter or status indicator has a mechanical representation, comprising; a monitor unit effective to count increments of movement comprising electro-optical light radiation monitoring and digital storage means being effective to electro-optically detect a change in the mechanical representation and to translate such change into electronic didigral pulses, digital circuitry to manipulate said digital pulses to provide representations of utility consumption rate and wherein said digital circuitry brackets utility consumed into mutually exclusive, time of day storage registers; and digital memories to store the digital representations, said monitor unit further including electro-optical transponder means for receiving said digital pulses from said transponder means for receiving said digital pulses from said storage means, converting said digital pulses into light radiation and for transmitting said radiation, said radiation being a carrier for a train of pulses; and remote electro-optical interrogator means located at a point spaced from said monitor unit and effective to electro-optically trigger said transponder and to receive said train of pulses from said transponder.
Claim 15
Dependent Claim
173 words
An electrooptical remote meter reading system, in which the meter or status indicator has a mechanical representation, comprising; a monitor unit effective to count increments of movement comprising electro-optical light radiation monitoring and digital storage means being effective to electro-optically detect a change in the mechanical representation and to translate such change into electronic didigral pulses, digital circuitry to manipulate said digital pulses to provide representations of utility consumption rate and wherein said digital circuitry brackets utility consumed into mutually exclusive, time of day storage registers; and digital memories to store the digital representations, said monitor unit further including electro-optical transponder means for receiving said digital pulses from said transponder means for receiving said digital pulses from said storage means, converting said digital pulses into light radiation and for transmitting said radiation, said radiation being a carrier for a train of pulses; and remote electro-optical interrogator means located at a point spaced from said monitor unit and effective to electro-optically trigger said transponder and to receive said train of pulses from said transponder.
Claim 16
Dependent Claim
20 words
A system according to claim 13 wherein said digital circuitry determines the maximum utility consumption rate during a billing period.
Claim 17
Dependent Claim
23 words
A system according to claim 13, wherein said digital circuitry stores the total utility consumed at a rate exceeding a predetermined threshold value.
Claim 18
Dependent Claim
24 words
A system according to claim 13, wherein said digital circuitry provides a digital alarm output whenever utility consumption rate exceeds a predetermined critical value.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-15 | 1984-01-14 | 1984-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-15 | 1988-01-14 | 1988-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-15 | 1992-01-14 | 1992-07-15 | $7700.00 | Window Closed / Lapsed |