WO2001038830A1 - Device for remote reading of a meterbox display - Google Patents

Device for remote reading of a meterbox display Download PDF

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Publication number
WO2001038830A1
WO2001038830A1 PCT/NO2000/000399 NO0000399W WO0138830A1 WO 2001038830 A1 WO2001038830 A1 WO 2001038830A1 NO 0000399 W NO0000399 W NO 0000399W WO 0138830 A1 WO0138830 A1 WO 0138830A1
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WO
WIPO (PCT)
Prior art keywords
unit
meterbox
display
reading
digits
Prior art date
Application number
PCT/NO2000/000399
Other languages
French (fr)
Inventor
Jan-Gunnar Mathisen
Original Assignee
Wireless Reading Systems Asa
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 Wireless Reading Systems Asa filed Critical Wireless Reading Systems Asa
Priority to AU15619/01A priority Critical patent/AU1561901A/en
Publication of WO2001038830A1 publication Critical patent/WO2001038830A1/en

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Classifications

    • 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
    • G01D5/39—Scanning a visible indication of the measured value and reproducing this indication at the remote place, e.g. on the screen of a cathode ray tube
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/30—Smart metering, e.g. specially adapted for remote reading

Definitions

  • the present invention relates to a device for remote reading of a meterbox display, especially remote reading of a meterbox that registers consumption of electricity, water or gas, wherein the display composes a row of digits intended for manual reading by an operator
  • Additional equipment has been devised for inclusion m existing meterboxes from ABB ®, counting the turns of the metering device, wherein the equipment mav be connected to a computer that is able to pass on the information This requires “surgery” withm the meterbox where the new counter is arranged and a cable connection into the meterbox Such equipment is for the time being only available for meterboxes manufactured by ABB.
  • reading of a meterbox may be obtained at certain moments in time which may be regular or at will.
  • the equipment previously installed is utilized for this purpose and it is not required that complicated equipment for continuous monitoring is installed where this is not needed.
  • the registration/ recordal of the meterbox display as such is most conveniently achieved by means of optical chips of the kind used in digital cameras, but with particular optics allowing close-ups, e.g. at a distance of 15-20 mm from the object, and defining a narrow and elongate field in the area of about 10 x 50 mm.
  • CMOS complementary metal-oxide-semiconductor
  • Digital Camera-On-a-Chip Such chips are able to read optically under very low light conditions, even down to e.g. 0,004 lux.
  • additional light may still be required, e.g. from a light-emitting diode.
  • a chip of the relevant type may be PB 0100® as provided by Photobit Corp in the U.S.A.
  • the display is protected by a glass cover.
  • the glass cover may in such cases be used for the attachment of the optical chip, as the chip may simply be glued to the glass cover straight above the display. If there is no glass cover available or if it is desired not to cover the display completely, the chip may be mounted on a bracket holding the chip at a fixed distance from the display, in a way allowing manual reading of the display as normal.
  • Fig. 1 is a schematic view of the principles for the device according to the invention as part of a complete system
  • Fig. 2a and 2b show a preferred embodiment of the invention in two different positions.
  • Fig. 1 shows a system comprising the device according to the invention.
  • a meterbox 1 comprising a display (a row of digits) 2 covered by a glass cover 3.
  • An optical chip 4 is arranged on or close to the glass cover 3, said chip is connected to a local control unit 5 which again is connected to local communication unit 6.
  • the local communication unit 6 may transmit information to a central communication unit 7 that through a control unit 8 transmits data to a memory unit 9.
  • the control unit 8 and the memory unit 9 need not constitute physically separate hardware, but may constitute logical functions integrated in a computer, controlled by adequate software.
  • the software does not constitute any part of the invention, as this may be accommodated by any skilled programmer.
  • Information may be transmitted in both directions in the system according to the invention, so that at a point in time where a registration of the display of the meterbox is requested, an initiation signal is transmitted from the control unit 8.
  • the signal may be controlled by the computer alone, based on dates (e.g. monthly intervals) or other controlling logics, or it may be initiated by a computer operator.
  • the signal from the computer is transmitted through a network, e.g. the GSM network, to the control unit 5 at the meterbox, ordering the optical chip 4 to momentarily take a snapshot of the display 2.
  • a network e.g. the GSM network
  • the signal from the optical chip which is basically a digital photograph, may either be transmitted in this form to be converted centrally to a number from which the consumption is calculated, or the local control unit 5 may include the technology required to convert the signal locally in real time to a number (or letters) e.g. by utilizing OCR technology.
  • the advantage of transmitting the photograph non-converted is that less functions are required locally and the possibility of performing quality assurance of the information is improved.
  • the disadvantage is that significantly more information has to be transmitted.
  • the central computer 9 may be the same computer used for billing the customers, or it may be a computer connected to such a computer.
  • Fig. 2 shows a preferred embodiment of the invention where a unit 4' comprises both the optical chip and the required control and communication units, i.e. the units 4, 5 and 6 of fig. 1.
  • the unit 4' is adapted to be attached directly to the glass cover of a meterbox with double-sided tape or by utilizing more advanced industrial gluing techniques.
  • the unit 4' comprises a frame or the like (not shown) allowing the unit to be tilted away for simplified manual reading of the display, so that the consumer may confirm that the amount he is invoiced is correct.
  • the transmittal time based on ISDN technology is less than 2 seconds, while it is in the range between 1 and 10 seconds with today's GSM technology, depending e g on the resolution If the information is transmitted after conversion to a stnng of digits, the transmittal time will be less than a second even with GSM technology
  • the registration of the display will be conducted by remote control from the same central computer that receives and registers data, but it is also possible that the remote control function is performed from a different site or based on a functionality built-into the local control unit
  • the local equipment (4, 5, 6) is assigned a particular identity code, numerically or alphanume ⁇ cally, which is unchangeable, and which is always transmitted along with the display reading to the central unit
  • the identity code is unique for each particular local installation This way any possible mix-up of data from different local installations are avoided, even if the telephone system should temporanly break down
  • the way the identity code is assigned to the equipment may vary, but a safe and convenient way of doing it is by etching the code into a chip of the control unit 5

Abstract

Device for remote reading of a meterbox display, especially a meterbox for registering consumption of electricity, water or gas. Such a meterbox display comprises a row of digits intended for manual reading by an operator. The device comprises (a) local equipment in the form of a unit (4) suited for optical reading arranged in connection with an existing meterbox (1). The unit (4), preferably by remote control, is arranged to momentarily read the digits of a display (2) of the meterbox (1) and, by means of a control unit (5) and a communication unit (6), to transmit signals representing the reading over a communications network to a central unit comprising (b) equipment in the form of a communication unit (7), a control unit (8) and a memory unit (9).

Description

Device for remote reading of a meterbox display
The present invention relates to a device for remote reading of a meterbox display, especially remote reading of a meterbox that registers consumption of electricity, water or gas, wherein the display composes a row of digits intended for manual reading by an operator
Background
Elimination of monopolies regarding services related to electricity, water and gas, and/ or increased competition within these sectors, has lead to a desire or a need for more frequent readings These readings may not be made at fixed intervals to register consumption of such commodities/ services
At the same time new technology has enabled simplified routines of such readings so that they require less manual work than previously possible
In the past it was considered sufficient to invoice payments on account for all yearly terms except the last one, and a manual reading made of the actual consumption at the end of the year This situation has changed drastically of late With regard to electricity customers may change supplier with relatively short notice m many markets, depending upon the agreement entered with the current supplier, and it is feasible to change supplier more than once a year This has lead to an increased frequenc} of readings and a wish to be able to conduct such readings with as little manual labour as possible
Previously known technology
Different solutions have been suggested both with respect to the reading itself and to the transfer of the data registered
Additional equipment has been devised for inclusion m existing meterboxes from ABB ®, counting the turns of the metering device, wherein the equipment mav be connected to a computer that is able to pass on the information This requires "surgery" withm the meterbox where the new counter is arranged and a cable connection into the meterbox Such equipment is for the time being only available for meterboxes manufactured by ABB.
There are also strictly digital meters with built-in digital counters that may again be read by a computer, whereafter the information is transmitted through a communications network. To implement such equipment the entire existing meterbox must be replaced. In addition comes the requirement of suitable communication equipment.
The aforementioned systems are excellent where a continuous registration is required. If the need, however, can be satisfied by readings at certain intervals, such systems are unjustifiably expensive.
Objectives
It is an object of the present invention to provide a device for remote reading of a display e.g. for consumption of electricity, water or the like which is being registered at the consumers location.
It is an object to provide a device of the kind mentioned above, wherein the currently used equipment and the information already available at the consumers location is utilized, thereby keeping the costs of the system at a moderate level.
It is further an object to transfer the remotely read data in a cheap and convenient manner to a central memory unit in an inexpensive and convenient manner.
The invention The aforementioned objects are achieved by means of a device as defined by claim 1.
Preferred embodiments of the invention are disclosed by the dependent claims.
By use of the device according to the invention, reading of a meterbox may be obtained at certain moments in time which may be regular or at will. The equipment previously installed is utilized for this purpose and it is not required that complicated equipment for continuous monitoring is installed where this is not needed. The registration/ recordal of the meterbox display as such is most conveniently achieved by means of optical chips of the kind used in digital cameras, but with particular optics allowing close-ups, e.g. at a distance of 15-20 mm from the object, and defining a narrow and elongate field in the area of about 10 x 50 mm.
Convenient optical chips based on CMOS technology are available commercially, and are popularly denoted "Digital Camera-On-a-Chip". Such chips are able to read optically under very low light conditions, even down to e.g. 0,004 lux. For applications in closed cabinets, additional light may still be required, e.g. from a light-emitting diode. A chip of the relevant type may be PB 0100® as provided by Photobit Corp in the U.S.A.
In many relevant types of meterboxes the display is protected by a glass cover. The glass cover may in such cases be used for the attachment of the optical chip, as the chip may simply be glued to the glass cover straight above the display. If there is no glass cover available or if it is desired not to cover the display completely, the chip may be mounted on a bracket holding the chip at a fixed distance from the display, in a way allowing manual reading of the display as normal.
In the following, the invention is described more in detail in terms of a preferred, non- limiting example of an embodiment, and with reference to the enclosed drawings.
Fig. 1 is a schematic view of the principles for the device according to the invention as part of a complete system, Fig. 2a and 2b show a preferred embodiment of the invention in two different positions.
Fig. 1 shows a system comprising the device according to the invention. A meterbox 1 comprising a display (a row of digits) 2 covered by a glass cover 3. An optical chip 4 is arranged on or close to the glass cover 3, said chip is connected to a local control unit 5 which again is connected to local communication unit 6. The local communication unit 6 may transmit information to a central communication unit 7 that through a control unit 8 transmits data to a memory unit 9. It is readily understood that the control unit 8 and the memory unit 9 need not constitute physically separate hardware, but may constitute logical functions integrated in a computer, controlled by adequate software. It is particularly emphasized that the software does not constitute any part of the invention, as this may be accommodated by any skilled programmer.
Information may be transmitted in both directions in the system according to the invention, so that at a point in time where a registration of the display of the meterbox is requested, an initiation signal is transmitted from the control unit 8. The signal may be controlled by the computer alone, based on dates (e.g. monthly intervals) or other controlling logics, or it may be initiated by a computer operator. The signal from the computer is transmitted through a network, e.g. the GSM network, to the control unit 5 at the meterbox, ordering the optical chip 4 to momentarily take a snapshot of the display 2. With the described functionality it is understood that the readings of the meterbox are controlled remotely.
The signal from the optical chip, which is basically a digital photograph, may either be transmitted in this form to be converted centrally to a number from which the consumption is calculated, or the local control unit 5 may include the technology required to convert the signal locally in real time to a number (or letters) e.g. by utilizing OCR technology. The advantage of transmitting the photograph non-converted is that less functions are required locally and the possibility of performing quality assurance of the information is improved. The disadvantage is that significantly more information has to be transmitted.
The central computer 9 may be the same computer used for billing the customers, or it may be a computer connected to such a computer.
Fig. 2 shows a preferred embodiment of the invention where a unit 4' comprises both the optical chip and the required control and communication units, i.e. the units 4, 5 and 6 of fig. 1. The unit 4' is adapted to be attached directly to the glass cover of a meterbox with double-sided tape or by utilizing more advanced industrial gluing techniques. Preferably the unit 4' comprises a frame or the like (not shown) allowing the unit to be tilted away for simplified manual reading of the display, so that the consumer may confirm that the amount he is invoiced is correct. It is also possible to attach only the chip 4 or a frame/ holder for holding the chip 4 front of the display, and to use a cable connection to the remainder part of the local units 5 and 6 (fig 1) Independent of the embodiment, the total dimensions of the local equipment 4, 5 and 6 will be small enough to be contained m e g a normal fuse box
With the present developments in mobile telephony it will be natural to utilize such a technology for transmitting the information It is of course also possible to transmit the information over a cable based network It is preferable that the signals from the central unit are sent through the same networks as the readings are returned through, but this is not a mandatory feature of the invention
If the information is transmitted as a photograph the transmittal time based on ISDN technology is less than 2 seconds, while it is in the range between 1 and 10 seconds with today's GSM technology, depending e g on the resolution If the information is transmitted after conversion to a stnng of digits, the transmittal time will be less than a second even with GSM technology
Most commonly the registration of the display will be conducted by remote control from the same central computer that receives and registers data, but it is also possible that the remote control function is performed from a different site or based on a functionality built-into the local control unit
It is furthermore preferred that the local equipment (4, 5, 6) is assigned a particular identity code, numerically or alphanumeπcally, which is unchangeable, and which is always transmitted along with the display reading to the central unit The identity code is unique for each particular local installation This way any possible mix-up of data from different local installations are avoided, even if the telephone system should temporanly break down The way the identity code is assigned to the equipment may vary, but a safe and convenient way of doing it is by etching the code into a chip of the control unit 5

Claims

Claims
1. Device for remote reading of a meterbox display, especially a meterbox for registering consumption of electricity, water or gas, said display comprising a row of digits intended for manual reading by an operator, characterized in that the device comprises:
- local equipment in the form of a unit (4) suited for optical reading, arranged in connection with an existing meterbox (1), which unit (4) preferably by remote control, is arranged to momentarily read the digits of the display (2) of the meterbox (1) and, by means of a control unit (5) and a communication unit (6), to transmit signals representing said reading via a communications network to a central unit comprising
- equipment in the form of a communication unit (7), a control unit (8) and a memory unit (9).
2. Device according to claim 1, characterized in that the unit (4) for optical reading of the display's digits is a conventional CMOS chip.
3. Device according to claim 1, characterized in that the unit (4) for optical reading, the control unit (5) and the communication unit (6) constitute one integral unit (4') that is arranged to be immovably or tiltably fixed to the meterbox, preferably by means of industrial gluing techniques.
4. Device according to claim 1 , characterized in that the local equipment (4, 5, 6) is assigned a unique numerically or alphanumerically identity code, arranged to be transmitted along with each reading to the central unit (7, 8, 9).
5. Device according to claim 1, characterized in that the communication unit (6) is a GSM transmitter/ receiver.
6. Device according to claim 1 , characterized in that the device controlled by a central computer (9), is ordered to take snapshots at regular, e.g. monthly intervals.
7. Device according to claim 1, characterized in that the transmitted pictures are arranged to be interpreted by a computer (8) which converts the picture information to a consumption value.
5 8. Device according to claim 7, characterized in that a quality assurance test is performed on the automatically registered consumption value, by comparing it with previously recorded consumption and/ or by checking that it is within predefined limits.
10 9. Device according to claim 7, characterized in that the control unit (5) comprises OCR-technology for converting the picture information of the display that is received from the optical unit (4) to digits or letters.
15 10. Device according to claim 1 , characterized in that the transmitted photographs are interpreted manually by an operator who register consumption and perform a quality assurance test of it.
11. Device according to claim 1 , 0 characterized in that a light source, preferably one or more light-emitting diodes (not shown) controlled by the control unit (5), are arranged locally to illuminate the display (2) when a reading is performed.
AMENDED CLAIMS
[received by the International Bureau on 11 April 2001 (11.04.01); original claims 1-11 replaced by amended claims 1-10 (2 pages)]
1. Device for remote reading of a meterbox display, especially a meterbox for registering consumption of electricity, water or gas, said display comprising a row of digits intended for manual reading by an operator, comprising
- local equipment in the form of a unit (4) suited for optical reading, arranged in connection with an existing meterbox (1), said unit (4) preferably by remote control being arranged to momentarily read the digits of the display (2) of the meterbox (1) and, by means of a control unit (5) and a communication unit (6), to transmit signals representing said reading via a communications network to a central unit comprising
- equipment in the form of a communication unit (7), a control unit (8) and a memory unit (9), characterized in that a unique numerically or alphanumerically identity code is assigned to the local equipment (4, 5, 6) and being arranged to be transmitted along with each reading to the central unit (7, 8, 9).
2. Device according to claim 1, characterized in that the unit (4) for optical reading of the display's digits is a conventional CMOS chip.
3. Device according to claim 1, characterized in that the unit (4) for optical reading, the control unit (5) and the communication unit (6) constitute one integral unit (4') that is arranged to be immovably or tiltably fixed to the meterbox, preferably by means of industrial gluing techniques.
4. Device according to claim 1 , characterized in that the communication unit (6) is a GSM transmitter/ receiver.
5. Device according to claim 1 , characterized in that the device controlled by a central computer (9), is ordered to take snapshots at regular, e.g. monthly intervals.
PCT/NO2000/000399 1999-11-29 2000-11-27 Device for remote reading of a meterbox display WO2001038830A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU15619/01A AU1561901A (en) 1999-11-29 2000-11-27 Device for remote reading of a meterbox display

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO19995836 1999-11-29
NO995836A NO995836D0 (en) 1999-11-29 1999-11-29 Device for remote reading of gauges

Publications (1)

Publication Number Publication Date
WO2001038830A1 true WO2001038830A1 (en) 2001-05-31

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NO (1) NO995836D0 (en)
WO (1) WO2001038830A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2830656A1 (en) * 2001-10-10 2003-04-11 Manuf D App Electr De Cahors M Method and equipment for remote determination of number shown on a meter, comprises reader/analyzer with neuron networks able to detect number changes and indicate by emitting electrical impulse
BE1015671A5 (en) * 2003-09-04 2005-07-05 Xemex Nv Method and device for a gauge stand of record.
EP1785690A1 (en) 2005-11-10 2007-05-16 Haag-Streit Ag Method and device for determining an object s geometric characteristics

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010109852A (en) 2000-06-02 2001-12-12 김태훈 Gauge auto management system
US8784659B2 (en) 2007-08-08 2014-07-22 General Electric Company Method for controlling microbial biofilm in aqueous systems

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US4680704A (en) * 1984-12-28 1987-07-14 Telemeter Corporation Optical sensor apparatus and method for remotely monitoring a utility meter or the like
EP0279759A1 (en) * 1987-02-18 1988-08-24 Pierre Izard Methods and devices to read decimal figures on numerical indicators, especially on meters
DE19545631A1 (en) * 1995-12-07 1997-06-12 Abb Patent Gmbh Evaluation of measuring value indicator, of analogue indicating instrument esp. for water meters
US5673331A (en) * 1995-06-03 1997-09-30 United States Department Of Energy Method and apparatus for reading meters from a video image
EP0854557A2 (en) * 1997-01-17 1998-07-22 Gec-Marconi Limited Remote meter reading apparatus
US5870140A (en) * 1996-09-25 1999-02-09 Harbour Management Services Limited System for remote meter viewing and reporting
EP0899931A1 (en) * 1997-08-08 1999-03-03 Sydkraft Ab Remote reading system

Patent Citations (7)

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Publication number Priority date Publication date Assignee Title
US4680704A (en) * 1984-12-28 1987-07-14 Telemeter Corporation Optical sensor apparatus and method for remotely monitoring a utility meter or the like
EP0279759A1 (en) * 1987-02-18 1988-08-24 Pierre Izard Methods and devices to read decimal figures on numerical indicators, especially on meters
US5673331A (en) * 1995-06-03 1997-09-30 United States Department Of Energy Method and apparatus for reading meters from a video image
DE19545631A1 (en) * 1995-12-07 1997-06-12 Abb Patent Gmbh Evaluation of measuring value indicator, of analogue indicating instrument esp. for water meters
US5870140A (en) * 1996-09-25 1999-02-09 Harbour Management Services Limited System for remote meter viewing and reporting
EP0854557A2 (en) * 1997-01-17 1998-07-22 Gec-Marconi Limited Remote meter reading apparatus
EP0899931A1 (en) * 1997-08-08 1999-03-03 Sydkraft Ab Remote reading system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2830656A1 (en) * 2001-10-10 2003-04-11 Manuf D App Electr De Cahors M Method and equipment for remote determination of number shown on a meter, comprises reader/analyzer with neuron networks able to detect number changes and indicate by emitting electrical impulse
EP1302754A1 (en) * 2001-10-10 2003-04-16 Manufacture D'Appareillage Electrique de Cahors - MAEC Procedure and device to determine at a distance a digit on the dialplate of a counter
BE1015671A5 (en) * 2003-09-04 2005-07-05 Xemex Nv Method and device for a gauge stand of record.
EP1785690A1 (en) 2005-11-10 2007-05-16 Haag-Streit Ag Method and device for determining an object s geometric characteristics

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Publication number Publication date
AU1561901A (en) 2001-06-04
NO995836D0 (en) 1999-11-29

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