EP0974946A3 - Optical communication system for utility meters - Google Patents

Optical communication system for utility meters Download PDF

Info

Publication number
EP0974946A3
EP0974946A3 EP99114445A EP99114445A EP0974946A3 EP 0974946 A3 EP0974946 A3 EP 0974946A3 EP 99114445 A EP99114445 A EP 99114445A EP 99114445 A EP99114445 A EP 99114445A EP 0974946 A3 EP0974946 A3 EP 0974946A3
Authority
EP
European Patent Office
Prior art keywords
transmitter
pulse width
meter
communication system
signal
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP99114445A
Other languages
German (de)
French (fr)
Other versions
EP0974946A2 (en
Inventor
Mark Hamer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Landis and Gyr Ltd
Original Assignee
Siemens Metering Ltd
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
Priority claimed from GBGB9815945.2A external-priority patent/GB9815945D0/en
Priority claimed from GBGB9815943.7A external-priority patent/GB9815943D0/en
Application filed by Siemens Metering Ltd filed Critical Siemens Metering Ltd
Publication of EP0974946A2 publication Critical patent/EP0974946A2/en
Publication of EP0974946A3 publication Critical patent/EP0974946A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C2201/00—Transmission systems of control signals via wireless link
    • G08C2201/50—Receiving or transmitting feedback, e.g. replies, status updates, acknowledgements, from the controlled devices
    • G08C2201/51—Remote controlling of devices based on replies, status thereof

Abstract

The present invention relates to an improved optical communication system for gas or electricity meters. The system comprises a transmitter and a receiver disposed on a utility meter, and a further transmitter and receiver disposed on a receiver unit. The utility meter transmitter is arranged to transmit a data signal and a further signal to the receiver unit, with the further signal having a pulse width greater than a pulse width of the data signal. The receiver unit further comprises a separation means for separating the data signal and the further signal based on pulse width. The further signal may contain calibration information or be used to link the meter to external equipment. The present invention advantageously allows for a reduction in component parts while enhancing the functionality of the meter.
EP99114445A 1998-07-23 1999-07-22 Optical communication system for utility meters Withdrawn EP0974946A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB9815945.2A GB9815945D0 (en) 1998-07-23 1998-07-23 Gas meter pulse output from an optical communication link
GB9815943 1998-07-23
GBGB9815943.7A GB9815943D0 (en) 1998-07-23 1998-07-23 Improved utility meters
GB9815945 1998-07-23

Publications (2)

Publication Number Publication Date
EP0974946A2 EP0974946A2 (en) 2000-01-26
EP0974946A3 true EP0974946A3 (en) 2005-04-13

Family

ID=26314092

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99114445A Withdrawn EP0974946A3 (en) 1998-07-23 1999-07-22 Optical communication system for utility meters

Country Status (2)

Country Link
EP (1) EP0974946A3 (en)
GB (1) GB2339986A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955188A (en) * 1971-01-04 1976-05-04 Honeywell Information Systems Inc. Encoding technique for enabling a device to process different types of digital information transmitted along a single information channel
US4213119A (en) * 1976-04-29 1980-07-15 Energy Optics, Inc. Remote meter reading system providing demand readings and load control from conventional KWH meters
US4743901A (en) * 1985-04-03 1988-05-10 Nippon Soken, Inc. Signal transmission system
DE4321292A1 (en) * 1993-06-26 1995-01-05 Bayerische Motoren Werke Ag Method for serial transmission of measurement signals of a plurality of measurement parameters

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4868893A (en) * 1988-05-11 1989-09-19 Transdata, Inc. System for remote, interactive communication with a metal under ambient sunlight conditions

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955188A (en) * 1971-01-04 1976-05-04 Honeywell Information Systems Inc. Encoding technique for enabling a device to process different types of digital information transmitted along a single information channel
US4213119A (en) * 1976-04-29 1980-07-15 Energy Optics, Inc. Remote meter reading system providing demand readings and load control from conventional KWH meters
US4743901A (en) * 1985-04-03 1988-05-10 Nippon Soken, Inc. Signal transmission system
DE4321292A1 (en) * 1993-06-26 1995-01-05 Bayerische Motoren Werke Ag Method for serial transmission of measurement signals of a plurality of measurement parameters

Also Published As

Publication number Publication date
GB9917108D0 (en) 1999-09-22
GB2339986A (en) 2000-02-09
EP0974946A2 (en) 2000-01-26

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