WO1993001501A1 - Capteur pour la detection optique des mouvements de la piece mobile d'un compteur de consommation, dans le but de fournir une indication visuelle de la consommation - Google Patents

Capteur pour la detection optique des mouvements de la piece mobile d'un compteur de consommation, dans le but de fournir une indication visuelle de la consommation Download PDF

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Publication number
WO1993001501A1
WO1993001501A1 PCT/DK1992/000221 DK9200221W WO9301501A1 WO 1993001501 A1 WO1993001501 A1 WO 1993001501A1 DK 9200221 W DK9200221 W DK 9200221W WO 9301501 A1 WO9301501 A1 WO 9301501A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
consumption
aiming
meter
plane
Prior art date
Application number
PCT/DK1992/000221
Other languages
English (en)
Inventor
Tim Newlin
Finn Christensen
Søren KENNER
Original Assignee
Tim Newlin
Finn Christensen
Kenner Soeren
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 Tim Newlin, Finn Christensen, Kenner Soeren filed Critical Tim Newlin
Priority to EP92916300A priority Critical patent/EP0621950A1/fr
Priority to JP5501729A priority patent/JPH06508924A/ja
Publication of WO1993001501A1 publication Critical patent/WO1993001501A1/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/08—Design features of general application for actuating the drive
    • G06M1/10—Design features of general application for actuating the drive by electric or magnetic means
    • G06M1/101—Design features of general application for actuating the drive by electric or magnetic means by electro-optical means
    • 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
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • 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
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M3/00—Counters with additional facilities

Definitions

  • the invention concerns a sensor for optical detection of the movable parts of a consumption meter for visual indi ⁇ cation of the consumption and comprising aiming means assisting the mounting of the sensor on the consumption meter.
  • Electricity, water or gas meters traditionally have a mechanical counter for indication of accumulated consump ⁇ tion and moreover often a disc or a pointer rotating at a rate which is proportional to the size of the instan ⁇ taneous consumption.
  • These movable parts, which indicate consumption, are visible from the outside and can be ob ⁇ served through a transparent plate of glass or the like, which forms part of the meter casing protecting against unauthorized manipulation with the meter.
  • the known sensors have optically detecting elements and are adapted for external mounting on the meter in a manner such that the optically detecting elements "see” the consumption indicating parts of the meter, and when these parts move passed the "visual field" of the detecting parts, signals indicating such passage are formed on the electric output of these parts.
  • This output signal can be applied to an electronic computing circuit which e.g. converts the re ⁇ ceived signals to accumulated consumption, performs sta ⁇ tistical calculations such as the distribution of the consumption over various periods of time, metered consump- tion converted to costs, ect.
  • an electronic computing circuit which e.g. converts the re ⁇ ceived signals to accumulated consumption, performs sta ⁇ tistical calculations such as the distribution of the consumption over various periods of time, metered consump- tion converted to costs, ect.
  • Such sensors allow external optical detection of the movable parts of a consumption meter without unauthorized manipulation with the meter.
  • GB 2 179 399 describes a sensor of the present type, and where the aiming means are formed by an edge on a plate.
  • Consumption meters frequently have a metal casing, and their consumption indicating, rotating disc is thus posi ⁇ tioned partly in the dark so that just its periphery is visible. Aiming transversely to the edge is performed when mounting the sensor on the consumption meter, and the sen ⁇ sor is mounted so that the edge will be seen to coincide with the periphery of the rotating disc on the consumption meter.
  • the aiming edge does not define any aiming plane, and aiming errors can therefore easily occur unless by chance the eye is in the plane of the rotating disc.
  • the known sensors When the known sensors are to be mounted on a consumption meter, it requires much care to have the sensor mounted correctly with respect to the parts whose movement the sensor is to detect, and frequently the user cannot check whether the sensor is mounted correctly or optimally. At worst the sensor will not detect any movement at all, while intermittent error function will occur in other cases.
  • the object of the invention is to provide a sensor of the present type, which obviates these problems, and which can be mounted correctly on the meter with respect to its con ⁇ sumption indicating parts in a simple and safe manner.
  • This object is achieved by designing the aiming means of the sensor such that they define a visual angle around an aiming plane, as stated in claim 1.
  • fig. 1 shows a preferred sensor according to the invention at its mounting on a consumption meter as well as an asso ⁇ ciated central unit with calculating facilities
  • fig. 2 is a perspective view of the sensor of fig. 1,
  • fig. 3 shows the detection principle for the sensor ac ⁇ cording to the invention
  • fig. 4 shows the principle for the mounting of the sensor by means of the aiming means according to the invention
  • figs. 5, 6 and 7 show the preferred embodiment of the in ⁇ vention in various projections
  • figs. 8-12 show alternative embodiments of the aiming means according to the invention.
  • Fig. 1 shows an electricity meter 11 with a transparent panel 12 through which the circular disc 13 of the elec ⁇ tricity meter is visible.
  • Fig. 4 shows how the disc 13 of the meter is mounted on a vertical shaft 21, and when electric energy is consumed, the shaft 21 with the disc 13 rotates at a rate proportional to the size of the in- stantaneous consumption of electric power.
  • the disc 13 is provided with a mark 14, which is typically painted in a colour different from the rest of the disc, but in this case it generally just has a reflec ⁇ tion coefficient which differs from the rest of the peri- pheral edge of the disc.
  • Fig. 3 shows the principle of the optical detection of the rotation of the disc 13.
  • a light source 18 in the form of a light emitting diode or a lamp emits light through the glass panel 12 of the electricity meter, and the light im ⁇ pinges on the peripheral edge of the disc 13, where part of it is reflected.
  • a light sensitive element 19 in the form of a photodiode or phototransistor is arranged in the vicinity of the light source 18 and captures reflected light from the peripheral edge of the disc 13.
  • the opti- cally detecting elements 18, 19 are mounted in a sensor casing 15.
  • the detecting elements 18, 19 are incorporated in a known manner in electronic circuits, which are capable of applying an electric signal in response to the intensity of the light received by the photosensor 19.
  • the mark 14 passes the detecting elements 18, 19 at intervals, and because the reflection coefficient of the mark differs from the rest of the peripheral edge of the disc reflecting light from the light source 18 to the photosensor 19, the intensity of the light received by the photosensor 19 varies at the passage of the mark 14.
  • the electric circuit connected to the photosensor 19 will hereby e.g. apply an electric signal in the form of a pulse whose duration corresponds to the time it takes for "the mark 14 to pass.
  • a central unit 10 is connected to the detecting elements 18, 19 of the sensor via an electric cable 17.
  • the elec ⁇ tric pulses from the detecting elements 18, 19 of the sen- sor are accumulated in the central unit 10, and calcula ⁇ tions are made on the basis of this in a known manner.
  • the central unit 10 has a keyboard by means of which data can be entered, such as number of revolutions of the disc 13 per kWh, price per kWh, etc.
  • the senor is in a known manner provided with a geometrical masking of the detecting ele ⁇ ments 18, 19 so that their spatial sensitivity range is restricted to a narrow angular interval positioned around a plane, and it is therefore important that the sensor is mounted on the electricity meter in such a manner that the rotating disc is positioned within this angular interval which defines the spatial sensitivity range and preferably in said plane.
  • the light source 18 is an infrared light emitting diode
  • the photosensor is an infrared sensitive photodiode or phototransistor
  • a filter allowing infrared light to pass and consider ⁇ ably subduing visible light is moreover fitted in front of the detecting elements 18, 19.
  • the detecting elements of the sensor are incorporated in a sensor casing 15, which consists of a rectangular plate 22 whose one side is formed with a box-shaped extension 23 which is narrower than the rectangular plate 22 and extends in the entire length thereof.
  • the detecting elements 18, 19 of the sen ⁇ sor are incorporated in the box-shaped extension 23 appro- ximately halfway between its ends.
  • Elongated, through- going slots 16, positioned in extension of each other, are provided on both sides of the elements 18, 19, each of said slots 16 having a depth corresponding to the total thickness of the rectangular plate 22 and the box-shaped extension 23.
  • Figs. 1 and 4 show how these elongated slots 16 serve as aiming means when the sensor is to be mounted on the glass panel 12 of the electricity meter.
  • the slots 16 define a plane extending substantially perpendicularly to the rectangular plate 22.
  • the detecting elements 18, 19 of the sensor are positioned precisely in this plane, and the spatial sensitivity range of these elements is centered about the same plane by means of the mentioned masking.
  • the aiming means have an extent in two di ⁇ mensions, whereby a plane is defined, and by such aiming means it will be possible to make this plane coincide with the plane of the disc 13.
  • aiming means do not define a plane in a mathematical sense, but define an aiming or visual angle which encircles and approximates a plane. It is then expedient in the preferred embodiment that the aiming means have elongated, parallel inlet and outlet openings at a mutual fixed distance.
  • this disc In case of a consumption indicating disc 13, which is ob ⁇ served from the edge, this disc itself defines a plane, and one-dimensional aiming means can then be arranged in the plane of the disc with good certainty.
  • Figs. 8-12 show alternative embodiments of the aiming means of the invention. These alternative embodiments are shown to the left in the figures seen from the consumer, in the center of the figures seen from the side, and to the right in the figures seen from above.
  • Fig. 8 shows an arragement of parallel pairs of mirrors 24 by which the disc 13 is aimed at in two areas spaced from each other, the paths of rays are displaced in parallel by means of the mirrors 24, and the two areas of the disc are observed through a lens as two half-images, which is seen to the left in fig. 8.
  • the two half-images observed through the lens 25 will not be positioned in extension of each other, and it is then a simple matter to remedy this misalignment, because the two half-images are merely to be positioned in extension of each other and in the center of the composite image.
  • the pairs of mirrors may be provided with aiming lines as mentioned below in connection with figs. 11-12.
  • Fig. 9 shows how a thin wire 26 is fitted in each of the two slots 16.
  • the slots 16 have a relatively greater width than in the preferred embodiment described above.
  • the wires 26 are positioned in extension of each other, and when the sensor is mounted on the glass panel 12 of the electricity meter, the wires 26 are caused to visually coincide with the peripheral edge of the disc 13.
  • two or more paral ⁇ lel wires 26 may be provided in each of the slots 16 in this plane.
  • Fig. 10 shows an embodiment where the aiming means are formed by lenses 27 through which aiming is performed at the mounting of the sensor on the glass panel 12 on the electricity meter.
  • the lenses 27 may be combined with others of the mentioned aiming means.
  • Figs. 11 and 12 show a sensor casing 30 containing the detecting elements 18, 19 of the sensor.
  • the sensor more- over comprises a transparent plate 28 carrying, on both sides of the casing 30, some lines 29 which run in exten- sion of each other in pairs. These lines 29 may be printed or painted on the plate 28 or may be scribed in its sur ⁇ face. These lines 29 are used as aiming means for the mounting of the sensor on the glass panel 12 on the elec- tricity meter.
  • the embodiment in fig. 11 has two parallel lines on each side of the sensor casing 30, and when the sensor is to be mounted on the glass panel 12 of the elec ⁇ tricity meter the sensor is positioned such that the edge of the disc 13 of the electricity meter is seen between the two pairs of lines 29.
  • the embodiment in fig. 12 just has one line 29 on each side of the sensor casing 30, and when the sensor is mounted, these lines are caused to co ⁇ incide with the edge of the disc 13.
  • the senor may be constructed such that the aiming means do not form an integrated part of the sensor casing, but are merely temporarily connected with the sensor casing and can be removed. This simulta- neously results in a smaller sensor which is mounted on the consumption meter.
  • slots 16 are shown closed at both ends, but the slots may also be open at their ends facing away from each other.
  • the embodiments shown here have aiming means on both sides of the detecting elements of the sensor.
  • the aiming means may be restricted to being provided on just one side of these elements.

Abstract

L'invention se rapporte à un capteur qui sert à détecter par procédé optique les mouvements des pièces mobiles (13) d'un compteur de consommation (11), afin de fournir une indication visuelle de la consommation. Ce capteur comporte des organes de visée (16) servant à faciliter le montage correct du capteur par rapport aux pièces mobiles (13) du compteur. Lorsqu'ils sont utilisés avec un compteur de consommation électrique (11), lequel comporte un disque circulaire (13) avec des repère visibles (14) sur sa périphérie, les organes de visée (16) sont conçus de façon à s'étendre en deux dimensions et de façon à définir un plan qui est amené à coincider avec le disque rotatif (13) du compteur d'électricité (11), lors du montage du capteur sur le compteur.
PCT/DK1992/000221 1991-07-12 1992-07-10 Capteur pour la detection optique des mouvements de la piece mobile d'un compteur de consommation, dans le but de fournir une indication visuelle de la consommation WO1993001501A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP92916300A EP0621950A1 (fr) 1991-07-12 1992-07-10 Capteur pour la detection optique des mouvements de la piece mobile d'un compteur de consommation, dans le but de fournir une indication visuelle de la consommation
JP5501729A JPH06508924A (ja) 1991-07-12 1992-07-10 消費量を視覚表示する消費量メーターの可動部の動きを光検出するセンサー

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK134291A DK134291D0 (da) 1991-07-12 1991-07-12 Sensor til optisk aftastning af en forbrugsmaalers indikation af forbrug
DK1342/91 1991-07-12

Publications (1)

Publication Number Publication Date
WO1993001501A1 true WO1993001501A1 (fr) 1993-01-21

Family

ID=8103802

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1992/000221 WO1993001501A1 (fr) 1991-07-12 1992-07-10 Capteur pour la detection optique des mouvements de la piece mobile d'un compteur de consommation, dans le but de fournir une indication visuelle de la consommation

Country Status (6)

Country Link
EP (1) EP0621950A1 (fr)
JP (1) JPH06508924A (fr)
AU (1) AU2375592A (fr)
CA (1) CA2113254A1 (fr)
DK (1) DK134291D0 (fr)
WO (1) WO1993001501A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4416439A1 (de) * 1994-05-11 1995-11-30 Ruhrkohle Ag Vorrichtung zur Erfassung des elektrischen Energieverbrauchs in einem Stromnetz
DE4420049A1 (de) * 1994-06-08 1995-12-14 Siemens Matsushita Components Nachrüstsatz für elektrische Zähler
EP0717286A2 (fr) * 1994-12-16 1996-06-19 THE GENERAL ELECTRIC COMPANY, p.l.c. Compter de consommation
WO1997009693A1 (fr) * 1995-09-08 1997-03-13 Modesto Alvarez Fernandez Compteur mecanique a lecture a distance
GB2321305A (en) * 1997-01-17 1998-07-22 Marconi Gec Ltd Remote meter reading apparatus
GB2326243A (en) * 1997-06-11 1998-12-16 Abb Metering Syst Ltd Electricity consumption meters
US6089319A (en) * 1998-03-23 2000-07-18 Weatherford/Lamb, Inc. Whipstock

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109740326A (zh) * 2018-12-13 2019-05-10 国家电网有限公司 一种可扫码使用的电能表的数据处理方法及系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2107093A (en) * 1981-09-16 1983-04-20 Walker Crosweller And Company Automatic reading of public utility meters or the like
US4606223A (en) * 1983-06-09 1986-08-19 Alps Electric Co., Ltd. Device for detecting rotating speed of thin shape motor
GB2172399A (en) * 1985-03-12 1986-09-17 Eg Technology Limited Device for converting cyclic motion into digital output
US4639595A (en) * 1983-02-21 1987-01-27 Alps Electric Co., Ltd. Optical rotary encoder
EP0213265A2 (fr) * 1985-07-31 1987-03-11 LEVI STRAUSS & CO. Procédé et dispositif de centrage d'une pièce d'ouvrage
US5130641A (en) * 1990-11-29 1992-07-14 Amrplus Partners Eddy wheel edge sensor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2107093A (en) * 1981-09-16 1983-04-20 Walker Crosweller And Company Automatic reading of public utility meters or the like
US4639595A (en) * 1983-02-21 1987-01-27 Alps Electric Co., Ltd. Optical rotary encoder
US4606223A (en) * 1983-06-09 1986-08-19 Alps Electric Co., Ltd. Device for detecting rotating speed of thin shape motor
GB2172399A (en) * 1985-03-12 1986-09-17 Eg Technology Limited Device for converting cyclic motion into digital output
EP0213265A2 (fr) * 1985-07-31 1987-03-11 LEVI STRAUSS & CO. Procédé et dispositif de centrage d'une pièce d'ouvrage
US5130641A (en) * 1990-11-29 1992-07-14 Amrplus Partners Eddy wheel edge sensor

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4416439A1 (de) * 1994-05-11 1995-11-30 Ruhrkohle Ag Vorrichtung zur Erfassung des elektrischen Energieverbrauchs in einem Stromnetz
DE4420049A1 (de) * 1994-06-08 1995-12-14 Siemens Matsushita Components Nachrüstsatz für elektrische Zähler
EP0717286A2 (fr) * 1994-12-16 1996-06-19 THE GENERAL ELECTRIC COMPANY, p.l.c. Compter de consommation
EP0717286A3 (fr) * 1994-12-16 1997-05-07 Gen Electric Co Plc Compter de consommation
WO1997009693A1 (fr) * 1995-09-08 1997-03-13 Modesto Alvarez Fernandez Compteur mecanique a lecture a distance
ES2112177A1 (es) * 1995-09-08 1998-03-16 Alvarez Fernandez Modesto Dispositivo contador mecanico de lectura remota.
GB2321305A (en) * 1997-01-17 1998-07-22 Marconi Gec Ltd Remote meter reading apparatus
EP0854557A2 (fr) * 1997-01-17 1998-07-22 Gec-Marconi Limited Système de lecture à distance d'un compteur
EP0854557A3 (fr) * 1997-01-17 1999-01-07 Gec-Marconi Limited Système de lecture à distance d'un compteur
GB2326243A (en) * 1997-06-11 1998-12-16 Abb Metering Syst Ltd Electricity consumption meters
GB2326243B (en) * 1997-06-11 2000-10-11 Abb Metering Syst Ltd Improvements in or relating to electricity consumption meters
US6089319A (en) * 1998-03-23 2000-07-18 Weatherford/Lamb, Inc. Whipstock

Also Published As

Publication number Publication date
EP0621950A1 (fr) 1994-11-02
JPH06508924A (ja) 1994-10-06
AU2375592A (en) 1993-02-11
DK134291D0 (da) 1991-07-12
CA2113254A1 (fr) 1993-01-21

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