WO2001086310A1 - Compteur numerique de mesure du courant alternatif - Google Patents

Compteur numerique de mesure du courant alternatif Download PDF

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Publication number
WO2001086310A1
WO2001086310A1 PCT/US2000/006696 US0006696W WO0186310A1 WO 2001086310 A1 WO2001086310 A1 WO 2001086310A1 US 0006696 W US0006696 W US 0006696W WO 0186310 A1 WO0186310 A1 WO 0186310A1
Authority
WO
WIPO (PCT)
Prior art keywords
ught
signal
digital
alternating current
recited
Prior art date
Application number
PCT/US2000/006696
Other languages
English (en)
Inventor
Chao Fou Hsu
Original Assignee
Chen, Chung, Chin
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chen, Chung, Chin filed Critical Chen, Chung, Chin
Priority to GB0225361A priority Critical patent/GB2378768B/en
Priority to AU2000249712A priority patent/AU2000249712A1/en
Priority to JP2001583202A priority patent/JP2003532901A/ja
Priority to PCT/US2000/006696 priority patent/WO2001086310A1/fr
Priority to CA002408056A priority patent/CA2408056A1/fr
Priority to DE10085470T priority patent/DE10085470T1/de
Publication of WO2001086310A1 publication Critical patent/WO2001086310A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D4/00—Tariff metering apparatus
    • G01D4/002—Remote reading of utility meters
    • G01D4/004—Remote reading of utility meters to a fixed location
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02—Constructional details
    • G01R11/16—Adaptations of counters to electricity meters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/36—Induction meters, e.g. Ferraris meters
    • G01R11/38—Induction meters, e.g. Ferraris meters for single-phase operation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/133—Arrangements for measuring electric power or power factor by using digital technique

Definitions

  • the present invention relates generally to a structure of an alternating current meter for measuring the power consumption, and more particularly to an electronic digital measuring structure of the alternating current meter, which is capable of converting the power consumption rate of a power user into a digital signal output. A precision measurement of the power consumption is thus made possible by the digital signal output.
  • the induction- type alternating current meter is a principal instrument which is used by the power company to measure the power consumption by a power user.
  • the collection of the power consumption data by the power company is done by a person who is hired by the power company to read the meter on site.
  • Such a general practice as described above is not cost-effective and is inefficient at best in view of the fact that the wages and the fringe benefits of the meter-person give an added a ⁇ _lministrative cost, and that the manual reading of the power meter by the meter- person is apt to be erroneous.
  • a prior art alternating current meter 10 comprises a voltage magnet 11 capable of generating a movable magnetic field, and a metal disk 12 which is located over the voltage magnet 11 such that the metal disk 12 is induced by the movable magnetic field to turn.
  • a center shaft 13 of the metal disk 12 actuated to turn by the metal disk 12 in motion.
  • One of tow gears 151 of a counter 15 is meshed with a worm rod 14 which is mounted on the center shaft 13 such that the worm rod 14 turns along with the center shaft 13.
  • the numerical reading is shown by the counter 15 as a result of the cumulative measuring and switching, which are attained by a plurality of gear trains of the counter 15.
  • the numerical reading shown by the counter 15 of the meter 10 is not a reliable reflection of the actual power consumption.
  • the digital meter comprises a light- emitting element and a light sensor for conversion of a power consumption rate into a digital signal, which is then processed by a processing unit such that the power consumption is expressed in various forms, such as watts, cash value, etc.
  • the digital meter is electronically linked with a local area network via which the power company gathers the power consumption data of a power user without the use of a meter-person.
  • FIG.1 shows a front view of an induction-type wattmeter of the prior art.
  • FIG.2 shows a sectional schematic view of an induction-type wattmeter of the prior art.
  • FIG.3 shows a sectional schematic view of the present invention.
  • FIG.4 shows another sectional schematic view of the present invention.
  • FIG.5 shows a circuit block diagram of a signal conversion display of the present invention.
  • FIG.6 shows a flow chart of operation of the present invention.
  • a digital meter for measuring alternating current comprises a housing 10', a metal rotary disk 20, a Hght-emitting element 30, a light-sensing element 40, a signal wire 50, and a signal conversion display 60.
  • the housing 10' is provided in the interior thereof with a voltage magnet 11,
  • the metal rotary disk 20 is mounted over the voltage magnet 11 and provided with a vertical through hole 21, or one or more vertical through holes 21', as shown in FIG 4.
  • the metal rotary disk 20 is mounted on a shaft 22 which is pivoted at the bottom end to the housing 10', as shown by the imaginary lines in FIG 3.
  • the metal rotary disk 20 is induced by a magnetic field of the voltage magnet 11 to turn. As a result, the shaft 22 turns along with the rotary disk 20.
  • the Ught-emitting element 30 and the Ught- sensing element 40 are fixed on the housing 10' such that the Ught-emitting element 30 is corresponding in location to one surface of the metal rotary disk 20, and that the Ught-emitting element30 is separated from the metal rotary disk 20 by a predetermined distance.
  • the Ught-emitted 30 by a Ught-emitting end 31 of the Ught-emitting element 30 is projected on the rotational path of the vertical through hole 21.
  • the Ught-sensing element 40 is opposite to other surface fo the rotary disk 20 and is separated from the metal rotary disk 20 by a predetermined distance.
  • the Ught-receiving end 41 of the Ught-sensing element 40 is corresponding in location to the Ught-emitting end 31 of the Ught-emitting element 30.
  • the signal wire 50 is connected at one end with a signal output end 42 of the Ught-emitting element 40 such that the signal wire 50 is connected at other end thereof with the signal conversion display 60 which is fixed in the interior of the housing 10* for receiving the Ught signal of the signal wire 50.
  • the Ught signal is then converted into a numerical value of power consumption.
  • the signal conversion display 60 comprises a digital counting unit 61, a single-chip microprocessing unit 62, and a digital display unit 63.
  • the digital counting unit 61 is connected to the signal wire 50 for converting the Ught signal of the Ught-sensing element 40 into a digital signal, which is then decoded before being sent to the single-chip microprocessing unit 62 for conversion into the numerical value of power consumption.
  • the memory of the single-chip microprocessing unit 62 is provided with a control software for controlling the entire flow process of the signal conversion display 60. The control may be replaced by a microcomputer chip.
  • the digital display unit 63 is connected to the single-chip microprocessing unit 62 for displaying the numerical value of power consumption.
  • the metal rotary disk 20 is induced by the magnetic field of the voltage magnet 11 to rotate.
  • the Ught emitted by the Ught-emitting end 31 of the Ught-emitting element 30 is continuously projected on the surface of the metal rotary disk 20.
  • the through hole 21 of the metal rotary disk 20 is turned to the position of the Ught- emitting element 30, the Ught emitted by the Ught-emitting end 31 is received once by the Ught-receiving end 41 of the Ught-sensing element 40 via the through hole 21 of the metal rotary disk 20.
  • the Ught signal emitted by the Ught-emitting element 30 is obstructed by the metal rotary disk 20, thereby resulting in the interruption in the signal-receiving by the Ught-sensing element 40.
  • the Ught-sensing element 40 receives once the Ught signal.
  • the Ught-sensing element 40 receives continuously the Ught signal, which is converted into a digitized signal.
  • the digitized signal is transmitted to the signal conversion display 60 via the signal wire 50.
  • the counting is brought about by the digital counting unit 61.
  • the signal is transmitted to the single- chip microprocessing unit 62 in which the cumulative numerical value is converted into a numerical value of power consumption, which is then exhibited on the digital display unit 63.
  • the digital display unit 63 may be a Ught emitting diode (LED) or a Uquid crystal display (LCD).
  • a paraUel serial conversion unit 64 is connected to the single-chip microprocessing unit 62 which transmits data in a paraUel manner so as to enable the paraUel serial conversion unit 64 to receive the serial data at the time when the single-chip microprocessing unit 62 transmits the signal to the digital display unit 63.
  • the paraUel serial data received by the paraUel serial conversion unit 64 are subsequently transmitted via the telecommunication network or other types of data transmitting network to the terminal located at the power company.
  • a keyboard 65 is connected to the single-chip microprocessing unit 62 to faciUtate a variety of resets of the single-chip microprocessing unit 62.
  • the keyboard 65 may be replaced by a touch switch.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

Ce compteur numérique (10) est conçu pour mesurer le courant alternatif et se compose d'un disque rotatif métallique (20), d'un élément émetteur de lumière (30), d'un élément détecteur de lumière (40), d'un fil métallique de transmission de signaux (50) et d'un affichage de conversion de signaux (60). Le disque rotatif métallique (20) est doté d'un trou traversant (21) situé au niveau d'une position adéquate. L'élément émetteur de lumière (30) et l'élément détecteur de lumière (40) sont montés de manière correspondante l'un par rapport à l'autre, de façon à être placés sur un trajet rotationnel du trou traversant (21). Lorsque le disque rotatif (20) achève une révolution, l'élément détecteur de lumière (40) reçoit un signal lumineux qui est transmis par l'intermédiaire du fil métallique (50) dans l'affichage de conversion de signaux (60) au moyen duquel le signal est converti (62) en valeur numérique de consommation d'énergie. Cette valeur numérique de consommation d'énergie par un utilisateur s'obtient donc au moyen d'un terminal situé dans la compagnie d'électricité, sans qu'il soit nécessaire d'employer une personne pour relever les compteurs.
PCT/US2000/006696 2000-05-05 2000-05-05 Compteur numerique de mesure du courant alternatif WO2001086310A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB0225361A GB2378768B (en) 2000-05-05 2000-05-05 Digital meter for measuring alternating current
AU2000249712A AU2000249712A1 (en) 2000-05-05 2000-05-05 Digital meter for measuring alternating current
JP2001583202A JP2003532901A (ja) 2000-05-05 2000-05-05 デジタル式電力量計
PCT/US2000/006696 WO2001086310A1 (fr) 2000-05-05 2000-05-05 Compteur numerique de mesure du courant alternatif
CA002408056A CA2408056A1 (fr) 2000-05-05 2000-05-05 Compteur numerique de mesure du courant alternatif
DE10085470T DE10085470T1 (de) 2000-05-05 2000-05-05 Digitaler Elektrizitätszähler zur Messung von Wechselstrom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2000/006696 WO2001086310A1 (fr) 2000-05-05 2000-05-05 Compteur numerique de mesure du courant alternatif

Publications (1)

Publication Number Publication Date
WO2001086310A1 true WO2001086310A1 (fr) 2001-11-15

Family

ID=21741153

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/006696 WO2001086310A1 (fr) 2000-05-05 2000-05-05 Compteur numerique de mesure du courant alternatif

Country Status (6)

Country Link
JP (1) JP2003532901A (fr)
AU (1) AU2000249712A1 (fr)
CA (1) CA2408056A1 (fr)
DE (1) DE10085470T1 (fr)
GB (1) GB2378768B (fr)
WO (1) WO2001086310A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3602703A (en) * 1969-10-20 1971-08-31 Ibm Power demand predicting control system
US4034292A (en) * 1976-02-18 1977-07-05 Westinghouse Electric Corporation Direction sensitive opto-electronic pulse initiator for electrical meters
US4301508A (en) * 1979-03-28 1981-11-17 Eaton Corp. Digital processing system for time-of-day and demand meter display
US4652855A (en) * 1984-12-05 1987-03-24 Westinghouse Electric Corp. Portable remote meter reading apparatus
US6026355A (en) * 1996-09-18 2000-02-15 Itron, Inc. Solid state watt-hour meter using GMR sensor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3602703A (en) * 1969-10-20 1971-08-31 Ibm Power demand predicting control system
US4034292A (en) * 1976-02-18 1977-07-05 Westinghouse Electric Corporation Direction sensitive opto-electronic pulse initiator for electrical meters
US4301508A (en) * 1979-03-28 1981-11-17 Eaton Corp. Digital processing system for time-of-day and demand meter display
US4652855A (en) * 1984-12-05 1987-03-24 Westinghouse Electric Corp. Portable remote meter reading apparatus
US6026355A (en) * 1996-09-18 2000-02-15 Itron, Inc. Solid state watt-hour meter using GMR sensor

Also Published As

Publication number Publication date
CA2408056A1 (fr) 2001-11-15
GB2378768A (en) 2003-02-19
GB0225361D0 (en) 2002-12-11
JP2003532901A (ja) 2003-11-05
DE10085470T1 (de) 2003-05-08
AU2000249712A1 (en) 2001-11-20
GB2378768B (en) 2004-03-24

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