EP0825577A1 - System zur Fernerkennung und Fernablesung von Zählern - Google Patents
System zur Fernerkennung und Fernablesung von Zählern Download PDFInfo
- Publication number
- EP0825577A1 EP0825577A1 EP97113140A EP97113140A EP0825577A1 EP 0825577 A1 EP0825577 A1 EP 0825577A1 EP 97113140 A EP97113140 A EP 97113140A EP 97113140 A EP97113140 A EP 97113140A EP 0825577 A1 EP0825577 A1 EP 0825577A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transreceiver
- reading
- unit
- reading device
- data
- 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- Withdrawn
Links
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Definitions
- the invention concerns a system for the remote recognition and reading of meters as set forth in the main claim.
- the invention concerns a system for remote recognition and reading which can be applied in cases where there is a need to monitor the data measured by a wide variety of meters, whether or domestic or industrial use, such as for example meters for the consumption of electrical energy, water meters, gas meters, etc.
- the state of the art covers those meters which are used to measure the consumption, either domestic or industrial, of utilities such as electricity, water, gas or other, which are suitable to display the total progressive consumption in the specific unit of measurement. These meters usually have a code to identify the apparatus which is generally printed on the containing structure; it is attributed to the user and is needed by the officials of the Utility companies in order to associate the displayed reading with the user concerned.
- the data is read and transcribed onto registers, or input into the appropriate devices, and is then processed by the Utility company in order to issue the specific bill at the pre-established dates.
- This system involves a great deal of manual work and therefore has various problems, which include: long execution times, possibility of errors, difficult access, difficulty in finding the meters etc.
- One example is water meters, which are generally located in underground pits, covered by heavy manholes, in dark places where dirt accumulates. All this causes problems, especially when the dirt accumulates on the part of the meter which is intended to be read and/or on the identification code which may also become illegible.
- meters are located on private property which is therefore only accessible when the user is present; in some cases the private property may be guarded by dogs, which may be a danger for the meter-reader.
- Another risk for the meter-reader is when the meter is to measure toxic liquids, such as for example, industrial waste, or when the meter is located in contaminated industrial environments.
- the meters can only supply an average value because the display shows a progressive, total consumption, referring to a predetermined period of time,
- the purpose of the invention is to provide a system for the remote recognition and reading of meters which is able to perform conventional reading operations automatically.
- Another purpose of the invention is to obtain a system able to perform remote operations of reading and/or writing using a transreceiver device which, while it is working, does not need its own source of power and works on a low frequency.
- a further purpose of the invention is to acquire, at a distance and automatically, a plurality of supplementary data such as, for example, consumption according to the different time bands, the date of installation and last reading, the serial numbers attributed by the builder and/or the Utility company or other data according to the specific applications to which the meter is intended.
- supplementary data such as, for example, consumption according to the different time bands, the date of installation and last reading, the serial numbers attributed by the builder and/or the Utility company or other data according to the specific applications to which the meter is intended.
- a further purpose is to obtain a system which is reliable, versatile, long-lasting, ergonomic, inexpensive and easy to use.
- the recognition and reading system substantially comprises a metering unit and a reading device which communicate to each other by means of low frequency trasmissions.
- the metering unit consists of a measuring device of a conventional type associated with a device suitable to emit pulses correlated to the measurements monitored, and of a device to acquire, process and transmit data, installed directly in cooperation with the measuring device.
- the device to acquire, process and transmit data receives the pulses as input, processes them and emits as output numerical data relating to the readings, as well as other possible information, such as for example temporal information relating to the readings.
- the numerical data can be associated and/or integrated with supplementary and/or auxiliary information such as for example, a code, a serial number, the date of installation of the metering unit, etc.
- the device to acquire, process and transmit data cooperates at least with a passive transreceiver unit, that is to say, of the type which does not require its own power supply while it is working, which is able to exchange data on a low frequency with a transreceiver on the reading device.
- a passive transreceiver unit that is to say, of the type which does not require its own power supply while it is working, which is able to exchange data on a low frequency with a transreceiver on the reading device.
- the transreceiver unit installed on the meter when it is activated by a radio-frequency field, for example generated by the transreceiver on the reading device, is able to transmit and/or receive the data memorised in the metering unit.
- transreceiver unit of this type gives a plurality of advantages: it is not necessary to supply a source of power, and therefore it can function in any site or position whatsoever; it is possible to transfer data through non conductor materials, it is unaffected by atmospheric agents and the accumulation of dirt, it can be adapted to various forms and sizes.
- the passive transreceiver unit is located in a position which is far from the metering unit and therefore more easily identifiable and accessible for the meter-readers.
- the reading device comprises means suitable to generate a radio-frequency field to activate and feed the transreceiver unit associated with the metering unit and to allow data to be exchanged.
- the reading device moreover may have devices to acquire and process data, devices to memorise data and possibly devices to transmit data, for example to a central data and pricing bank.
- the reading device is of the portable type and can be carried by the meter-readers.
- the reading device is of the stationary type and associated with the metering unit.
- the stationary reading device can be connected, possibly together with similar reading devices associated with other metering units, to a concentrator device associated in turn with a local processing unit which can communicate and transmit data, for example by means of a modem, to a central data processor.
- the readings are carried out according to commands issued by the central data processor, for example located in a central data bank, to the local processor situated, for example, in an area with a plurality of users.
- the recognition and reading system 10 consists, in this case, of a metering unit 11, a reading device 12 and a concentrator device 14.
- the metering unit 11 comprises a measuring device 15 of a conventional type, installed on the duct of the utility to be measured, associated with a pulse-emitting device 16, a device to acquire, process and transmit data 17 and a passive transreceiver 13.
- the pulse-emitting device 16 consists of a transducer able to generate a series of pulses directly proportional to the measurements made by the measuring device 15.
- the pulses are sent to an acquisition and conditioning device 18 which adapts them so that a process microprocessor 19 can obtain a series of numerical data relating to the measurements made by the device 15.
- this data contains information conditioned by the variations in time; therefore the data referring to the measurements can be classified, for example, according to the different time bands or periods of time.
- the data is memorised in a memory 21 which is also shared by a communication microprocessor 22 by means of a multiplexer 23.
- the communication microprocessor 22 is suitable to manage the functioning of the passive transreceiver 13; that is to say, it makes it possible to transfer to the passive transreceiver 13 the data memorised in the memory 21 and/or to acquire the data arriving in the passive transreceiver 13 and transfer it to the memory 21.
- the passive transreceiver 13 is integrated in an apparatus, known as a transponder 24, (shown in Fig. 1 by a line of dots and dashes), which brings together the communication microprocessor 22 and the memory 21; this apparatus makes it possible to communicate at a distance and without contact with a transreceiver device 25 associated with the reading device 12.
- a transponder 24 shown in Fig. 1 by a line of dots and dashes
- this apparatus makes it possible to communicate at a distance and without contact with a transreceiver device 25 associated with the reading device 12.
- the passive transreceiver 13 does not need its own sources of power; the devices 18-23 on the contrary are associated with a source of power 26, for example, a long-life battery.
- the transreceiver unit 25 is suitable to transmit a radio-frequency signal 28 which activates the passive transreceiver 13 and feeds it throughout its period of functioning.
- the passive transreceiver 13 is able to transmit the data 29 contained in the memory 21 and, at the same time, it can receive the data 30 which the meter-reader transfers from the reading device 12 and then transfer it to the memory 21.
- the data 29 received from the reading device 12 is processed by a processing device 27 which memorises it in a memory 31.
- the operations to read and/or transmit data is carried out by the meter-reader, in this case by means of the keyboard 32; a display device 33 makes it possible to verify the performance of the above operations and/or the display of further information.
- the interface device 34 transfers the data contained in the memory 31 to a concentrator device 14, which is suitable to collect the data from one or more reading devices 12 and can, in turn, be connected to a calculator 35 or to a printer 36.
- the reading device 12 comprises feeding means 37, for example consisting of rechargeable batteries, and can include a clock/calender 38, for example to verify and/or update the working of the clock/calendar 20 in the metering unit 11 and, possibly, to modify the pricing parameters.
- feeding means 37 for example consisting of rechargeable batteries
- a clock/calender 38 for example to verify and/or update the working of the clock/calendar 20 in the metering unit 11 and, possibly, to modify the pricing parameters.
- Fig. 2 shows a diagram of a possible embodiment of the invention with a portable reading device 12.
- a keyboard 32 On the outer surface of the containing structure of the reading device 12 there is a keyboard 32, a display 33, a connection device 39 to connect with the appropriate battery-charging devices, an aerial 43 for the transmission-reception of data and a connection device 40 to transfer the data which has been read to a concentrator device 14.
- the metering unit 11 comprises a conventional measuring device 15 associated with a passive transreceiver, in this case integrated into the transponder 24, which has the aerial 42 cooperating with the outer surface of the metering unit 11.
- the system to recognise and read meters thus achieved provides for the following procedure: the meter-readers, equipped with the reading device 12, position themselves with respect to the metering unit 11 at a distance 44 such that the transponder 24 is activated by the generation of a radio-frequency field.
- the operations to read the data and/or the inputting of the data to be transmitted are carried out by means of the keyboard 32; by means of the display 33 it is possible to verify the results of the readings carried out and/or to display other information, such as for example, the number of readings carried out, the state of charge of the battery, etc.
- the reading device 12 is introduced into the housing seating 41 of the concentrator device 14 and the data memorised in the reading device 12 are transferred by means of the connection device 40 to the concentrator device 14.
- the concentrator device 14 is able to manage and/or process the data collected and interface with a calculator 35 and with a printer 36 to process the data, for example operations to issue bills automatically.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT96UD000158A IT1288972B1 (it) | 1996-08-12 | 1996-08-12 | Sistema di riconoscimento e lettura a distanza di contatori |
ITUD960158 | 1996-08-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0825577A1 true EP0825577A1 (de) | 1998-02-25 |
Family
ID=11422174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97113140A Withdrawn EP0825577A1 (de) | 1996-08-12 | 1997-07-30 | System zur Fernerkennung und Fernablesung von Zählern |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0825577A1 (de) |
IT (1) | IT1288972B1 (de) |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000075902A1 (en) * | 1999-06-09 | 2000-12-14 | Total Metering Limited | Improvements relating to metering systems |
WO2000078678A2 (en) * | 1999-06-21 | 2000-12-28 | Amway Corporation | Fluid treatment system with electromagnetic radiation |
WO2001024345A1 (en) * | 1999-09-22 | 2001-04-05 | Abb Ab | Supervision system |
US6436299B1 (en) | 1999-06-21 | 2002-08-20 | Amway Corporation | Water treatment system with an inductively coupled ballast |
US6673250B2 (en) | 1999-06-21 | 2004-01-06 | Access Business Group International Llc | Radio frequency identification system for a fluid treatment system |
KR100421568B1 (ko) * | 1998-12-29 | 2004-04-17 | 서창전기통신 주식회사 | 핸디 터미널을 이용한 계량기 무선 검침 방법 |
US6825620B2 (en) | 1999-06-21 | 2004-11-30 | Access Business Group International Llc | Inductively coupled ballast circuit |
US8000314B2 (en) | 1996-12-06 | 2011-08-16 | Ipco, Llc | Wireless network system and method for providing same |
US8013732B2 (en) | 1998-06-22 | 2011-09-06 | Sipco, Llc | Systems and methods for monitoring and controlling remote devices |
US8031650B2 (en) | 2004-03-03 | 2011-10-04 | Sipco, Llc | System and method for monitoring remote devices with a dual-mode wireless communication protocol |
US8064412B2 (en) | 1998-06-22 | 2011-11-22 | Sipco, Llc | Systems and methods for monitoring conditions |
EP2397924A1 (de) * | 2009-02-10 | 2011-12-21 | Dong Guan Ricktek Electric-mechanical Co., Ltd. | Bidirektionales drahtloses stromüberwachungssystem |
US8138875B2 (en) | 1999-06-21 | 2012-03-20 | Access Business Group International Llc | Inductively powered apparatus |
US8171136B2 (en) | 2001-10-30 | 2012-05-01 | Sipco, Llc | System and method for transmitting pollution information over an integrated wireless network |
US8335304B2 (en) | 1997-02-14 | 2012-12-18 | Sipco, Llc | Multi-function general purpose transceivers and devices |
US8410931B2 (en) | 1998-06-22 | 2013-04-02 | Sipco, Llc | Mobile inventory unit monitoring systems and methods |
US8446884B2 (en) | 2004-03-03 | 2013-05-21 | Sipco, Llc | Dual-mode communication devices, methods and systems |
US8489063B2 (en) | 2001-10-24 | 2013-07-16 | Sipco, Llc | Systems and methods for providing emergency messages to a mobile device |
CN101540096B (zh) * | 2008-03-17 | 2013-08-21 | 吴明星 | 无源远程抄表系统电源管理方法 |
US8666357B2 (en) | 2001-10-24 | 2014-03-04 | Sipco, Llc | System and method for transmitting an emergency message over an integrated wireless network |
US8787246B2 (en) | 2009-02-03 | 2014-07-22 | Ipco, Llc | Systems and methods for facilitating wireless network communication, satellite-based wireless network systems, and aircraft-based wireless network systems, and related methods |
US8924587B2 (en) | 1999-03-18 | 2014-12-30 | Sipco, Llc | Systems and methods for controlling communication between a host computer and communication devices |
US8964708B2 (en) | 1998-06-22 | 2015-02-24 | Sipco Llc | Systems and methods for monitoring and controlling remote devices |
US9439126B2 (en) | 2005-01-25 | 2016-09-06 | Sipco, Llc | Wireless network protocol system and methods |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2138609A (en) * | 1983-04-19 | 1984-10-24 | Emi Ltd | Electronic counter for mechanical drive |
EP0457306A2 (de) * | 1990-05-18 | 1991-11-21 | Gas-, Elektrizitäts- Und Wasserwerke Köln Ag. | Verfahren zum Auslesen und/oder Einlesen von Daten an einem mikroprozessorgesteuerten Datenspeicher, insbesondere eines registrierenden Mess- oder Zählgerätes sowie Einrichtung zur Durchführung des Verfahrens |
WO1993019439A1 (en) * | 1992-03-19 | 1993-09-30 | Abb Kent Plc | Remote meter reading |
GB2268032A (en) * | 1992-06-17 | 1993-12-22 | Badger Meter Inc | Utility meter transponder/antenna assembly for underground installations |
GB2278699A (en) * | 1993-05-17 | 1994-12-07 | Logica Uk Ltd | Domestic meter |
WO1995027273A1 (en) * | 1994-03-31 | 1995-10-12 | David Bell | Telemetry |
-
1996
- 1996-08-12 IT IT96UD000158A patent/IT1288972B1/it active IP Right Grant
-
1997
- 1997-07-30 EP EP97113140A patent/EP0825577A1/de not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2138609A (en) * | 1983-04-19 | 1984-10-24 | Emi Ltd | Electronic counter for mechanical drive |
EP0457306A2 (de) * | 1990-05-18 | 1991-11-21 | Gas-, Elektrizitäts- Und Wasserwerke Köln Ag. | Verfahren zum Auslesen und/oder Einlesen von Daten an einem mikroprozessorgesteuerten Datenspeicher, insbesondere eines registrierenden Mess- oder Zählgerätes sowie Einrichtung zur Durchführung des Verfahrens |
WO1993019439A1 (en) * | 1992-03-19 | 1993-09-30 | Abb Kent Plc | Remote meter reading |
GB2268032A (en) * | 1992-06-17 | 1993-12-22 | Badger Meter Inc | Utility meter transponder/antenna assembly for underground installations |
GB2278699A (en) * | 1993-05-17 | 1994-12-07 | Logica Uk Ltd | Domestic meter |
WO1995027273A1 (en) * | 1994-03-31 | 1995-10-12 | David Bell | Telemetry |
Cited By (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8000314B2 (en) | 1996-12-06 | 2011-08-16 | Ipco, Llc | Wireless network system and method for providing same |
US8982856B2 (en) | 1996-12-06 | 2015-03-17 | Ipco, Llc | Systems and methods for facilitating wireless network communication, satellite-based wireless network systems, and aircraft-based wireless network systems, and related methods |
US8233471B2 (en) | 1996-12-06 | 2012-07-31 | Ipco, Llc | Wireless network system and method for providing same |
US8335304B2 (en) | 1997-02-14 | 2012-12-18 | Sipco, Llc | Multi-function general purpose transceivers and devices |
US9691263B2 (en) | 1998-06-22 | 2017-06-27 | Sipco, Llc | Systems and methods for monitoring conditions |
US8410931B2 (en) | 1998-06-22 | 2013-04-02 | Sipco, Llc | Mobile inventory unit monitoring systems and methods |
US9571582B2 (en) | 1998-06-22 | 2017-02-14 | Sipco, Llc | Systems and methods for monitoring and controlling remote devices |
US8964708B2 (en) | 1998-06-22 | 2015-02-24 | Sipco Llc | Systems and methods for monitoring and controlling remote devices |
US8223010B2 (en) | 1998-06-22 | 2012-07-17 | Sipco Llc | Systems and methods for monitoring vehicle parking |
US8212667B2 (en) | 1998-06-22 | 2012-07-03 | Sipco, Llc | Automotive diagnostic data monitoring systems and methods |
US8013732B2 (en) | 1998-06-22 | 2011-09-06 | Sipco, Llc | Systems and methods for monitoring and controlling remote devices |
US9129497B2 (en) | 1998-06-22 | 2015-09-08 | Statsignal Systems, Inc. | Systems and methods for monitoring conditions |
US8064412B2 (en) | 1998-06-22 | 2011-11-22 | Sipco, Llc | Systems and methods for monitoring conditions |
US9430936B2 (en) | 1998-06-22 | 2016-08-30 | Sipco Llc | Systems and methods for monitoring and controlling remote devices |
KR100421568B1 (ko) * | 1998-12-29 | 2004-04-17 | 서창전기통신 주식회사 | 핸디 터미널을 이용한 계량기 무선 검침 방법 |
US8924587B2 (en) | 1999-03-18 | 2014-12-30 | Sipco, Llc | Systems and methods for controlling communication between a host computer and communication devices |
US8930571B2 (en) | 1999-03-18 | 2015-01-06 | Sipco, LLP | Systems and methods for controlling communication between a host computer and communication devices |
US8924588B2 (en) | 1999-03-18 | 2014-12-30 | Sipco, Llc | Systems and methods for controlling communication between a host computer and communication devices |
WO2000075902A1 (en) * | 1999-06-09 | 2000-12-14 | Total Metering Limited | Improvements relating to metering systems |
AU773943B2 (en) * | 1999-06-09 | 2004-06-10 | Energy Intellect Limited | Improvements relating to metering systems |
US6825620B2 (en) | 1999-06-21 | 2004-11-30 | Access Business Group International Llc | Inductively coupled ballast circuit |
US8138875B2 (en) | 1999-06-21 | 2012-03-20 | Access Business Group International Llc | Inductively powered apparatus |
US6673250B2 (en) | 1999-06-21 | 2004-01-06 | Access Business Group International Llc | Radio frequency identification system for a fluid treatment system |
WO2000078678A3 (en) * | 1999-06-21 | 2003-07-03 | Amway Corp | Fluid treatment system with electromagnetic radiation |
US6436299B1 (en) | 1999-06-21 | 2002-08-20 | Amway Corporation | Water treatment system with an inductively coupled ballast |
WO2000078678A2 (en) * | 1999-06-21 | 2000-12-28 | Amway Corporation | Fluid treatment system with electromagnetic radiation |
WO2001024345A1 (en) * | 1999-09-22 | 2001-04-05 | Abb Ab | Supervision system |
US9615226B2 (en) | 2001-10-24 | 2017-04-04 | Sipco, Llc | System and method for transmitting an emergency message over an integrated wireless network |
US10149129B2 (en) | 2001-10-24 | 2018-12-04 | Sipco, Llc | Systems and methods for providing emergency messages to a mobile device |
US8489063B2 (en) | 2001-10-24 | 2013-07-16 | Sipco, Llc | Systems and methods for providing emergency messages to a mobile device |
US9282029B2 (en) | 2001-10-24 | 2016-03-08 | Sipco, Llc. | System and method for transmitting an emergency message over an integrated wireless network |
US8666357B2 (en) | 2001-10-24 | 2014-03-04 | Sipco, Llc | System and method for transmitting an emergency message over an integrated wireless network |
US10687194B2 (en) | 2001-10-24 | 2020-06-16 | Sipco, Llc | Systems and methods for providing emergency messages to a mobile device |
US9111240B2 (en) | 2001-10-30 | 2015-08-18 | Sipco, Llc. | System and method for transmitting pollution information over an integrated wireless network |
US9515691B2 (en) | 2001-10-30 | 2016-12-06 | Sipco, Llc. | System and method for transmitting pollution information over an integrated wireless network |
US8171136B2 (en) | 2001-10-30 | 2012-05-01 | Sipco, Llc | System and method for transmitting pollution information over an integrated wireless network |
US8031650B2 (en) | 2004-03-03 | 2011-10-04 | Sipco, Llc | System and method for monitoring remote devices with a dual-mode wireless communication protocol |
US8446884B2 (en) | 2004-03-03 | 2013-05-21 | Sipco, Llc | Dual-mode communication devices, methods and systems |
US8379564B2 (en) | 2004-03-03 | 2013-02-19 | Sipco, Llc | System and method for monitoring remote devices with a dual-mode wireless communication protocol |
US9439126B2 (en) | 2005-01-25 | 2016-09-06 | Sipco, Llc | Wireless network protocol system and methods |
US9860820B2 (en) | 2005-01-25 | 2018-01-02 | Sipco, Llc | Wireless network protocol systems and methods |
US11039371B2 (en) | 2005-01-25 | 2021-06-15 | Sipco, Llc | Wireless network protocol systems and methods |
US10356687B2 (en) | 2005-01-25 | 2019-07-16 | Sipco, Llc | Wireless network protocol systems and methods |
CN101540096B (zh) * | 2008-03-17 | 2013-08-21 | 吴明星 | 无源远程抄表系统电源管理方法 |
US8787246B2 (en) | 2009-02-03 | 2014-07-22 | Ipco, Llc | Systems and methods for facilitating wireless network communication, satellite-based wireless network systems, and aircraft-based wireless network systems, and related methods |
EP2397924A4 (de) * | 2009-02-10 | 2012-08-29 | Dong Guan Ricktek Electric Mechanical Co Ltd | Bidirektionales drahtloses stromüberwachungssystem |
EP2397924A1 (de) * | 2009-02-10 | 2011-12-21 | Dong Guan Ricktek Electric-mechanical Co., Ltd. | Bidirektionales drahtloses stromüberwachungssystem |
Also Published As
Publication number | Publication date |
---|---|
IT1288972B1 (it) | 1998-09-25 |
ITUD960158A1 (it) | 1998-02-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0825577A1 (de) | System zur Fernerkennung und Fernablesung von Zählern | |
US7385524B1 (en) | Automated meter reading, billing and payment processing system | |
EP1870678A2 (de) | Automatisches Zählerablese-, Abrechnungs- und Zahlungsverarbeitungssystem | |
CN103080989A (zh) | 一种电力计量系统及其读数显示方法 | |
CA2590727C (en) | Amr transmitter and method for both narrow band and frequency hopping transmissions | |
US20060289623A1 (en) | Devices and methods for determining the amount of individual usage of a shared commodity | |
KR102391995B1 (ko) | 스마트미터링 기반 옥내 누수 감지 시스템 및 옥내 누수 감지 방법 | |
CA2596207C (en) | Amr transmitter with programmable operating mode parameters | |
EP0990877A2 (de) | Anordnung zur Wasserverbrauchsbestimmung entlang des Eingangs des Wasserleitungsrohres | |
CA2619377C (en) | High power amr transmitter with data profiling | |
EP0834849A1 (de) | Messvorrichtung | |
WO2003094126A1 (en) | Remote reading method of gauge data | |
AU2003269318B2 (en) | System for the control of reticulated services | |
EP0643841B2 (de) | System und verfahren zum messen des energieverbrauchs von mehreren verbrauchern | |
KR20000063234A (ko) | 원격 검침 시스템 | |
CN110161316A (zh) | 一种无需外接电源、高效抗干扰的智能接地电阻监测仪 | |
Sandhya et al. | IoT Based Electric Meter Reading, Billing, Theft Detection and Control | |
WO2011072625A1 (en) | System for wireless data transfer from measuring instruments | |
KR200239241Y1 (ko) | 원격 검침 시스템 | |
US20040124828A1 (en) | Device and method for continuously monitoring energy usage | |
EP0554618A2 (de) | Stromzähler | |
GB2229834A (en) | Consumption meters and meter reading apparatus | |
KR200189543Y1 (ko) | 폐수처리시설 가동기기 원격감시장치 | |
EP1365542A1 (de) | Vorrichtung und Verfahren zur Erkennung von Ereignissen über ein Ethernet | |
Students | A Review on Digital Energy Management Systems |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IT LI NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;RO;SI |
|
17P | Request for examination filed |
Effective date: 19980805 |
|
AKX | Designation fees paid |
Free format text: AT BE CH DE DK ES FI FR GB GR IT LI NL PT SE |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AT BE CH DE DK ES FI FR GB GR IT LI NL PT SE |
|
17Q | First examination report despatched |
Effective date: 20010320 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 20010714 |