EP0847163A1 - Dispositif pour l'essai et/ou la commande à distance d'un système - Google Patents

Dispositif pour l'essai et/ou la commande à distance d'un système Download PDF

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Publication number
EP0847163A1
EP0847163A1 EP97120589A EP97120589A EP0847163A1 EP 0847163 A1 EP0847163 A1 EP 0847163A1 EP 97120589 A EP97120589 A EP 97120589A EP 97120589 A EP97120589 A EP 97120589A EP 0847163 A1 EP0847163 A1 EP 0847163A1
Authority
EP
European Patent Office
Prior art keywords
interface unit
data
designed
arrangement according
interface
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Withdrawn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
EP97120589A
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German (de)
English (en)
Inventor
Peter Fischer
Andrew Fogg
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.)
Electrowatt Technology Innovation AG
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Electrowatt Technology Innovation AG
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 EP96119169A external-priority patent/EP0847162A1/fr
Application filed by Electrowatt Technology Innovation AG filed Critical Electrowatt Technology Innovation AG
Priority to EP97120589A priority Critical patent/EP0847163A1/fr
Publication of EP0847163A1 publication Critical patent/EP0847163A1/fr
Withdrawn legal-status Critical Current

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    • 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 relates to a device according to the preamble of claims 1 and 18.
  • Interface device generally for operating devices or systems such as Gas meters, controllers or control systems for heating, ventilation and air conditioning technology, facilities for Minimization of load peaks in power distribution systems, vending machines, payphones, pay TV sets, Access control systems or surveillance systems can be used.
  • An alarm system is also known (US Pat. No. 4,993,059) in which the signals of an alarm sensor are transmitted via a Radio telephone network can be transmitted to a central office.
  • Known nuns are, for example, NMT 900, IS 95-CDMA, JTACS, WAGS, CT-2, ESMR, RC2000, NMT450, ETACS and TACS. So is a so-called GSM standard known (Michel Mouly, Marie-Bernadette Pautet: The GSM System For Mobile Communications, 1992), which is also used in Europe in particular, depending on the used Frequency GSM900, GSM1800 or GSM1900 can be used.
  • EP 0 645 941 there is a radio for sending and receiving short messages known that works according to the GSM standard.
  • the invention has for its object a cost-effective and reliable arrangement with a To create an interface device for a cellular radio network, which also provides a high level of security regarding authenticity and anonymity of the transmitted data is attainable.
  • 1 means an interface unit, which on the one hand has an antenna 2 to a cellular one Communication network 3 connected and on the other hand via a connecting means 4 with at least one Module 5 is connectable.
  • the module 5 is a controllable device or a controllable device, for example an electricity or a gas meter, a control center of a building monitoring system or a sales system for Goods or services.
  • the cellular communication network 3 has several communication cells 6, which each have a radio antenna 7 which the communication cells 6 have one another and further also user systems of the cellular communication network 3 with the cellular communication network 3 are connectable via radio waves.
  • a single copy of the communication cells 6 covers this each from a certain geographical area; the communication cells 6 are arranged such that together they cover a larger, coherent area.
  • the number of copies of 3 connected to the cellular communication network Interface unit 1 is generally not limited; it depends primarily on the Transmission capacity of the cellular communication network 3. To simplify the illustration, in 1a only two copies of the interface unit 1 are shown.
  • a station 8 is connected to the cellular communication network 3 via a connection device 9 connected.
  • the connection device 9 is an available data communication channel via a wire, Light or radio wave connection.
  • the interface unit 1 is used for the safe and reliable bidirectional transmission of digital Data flows between the station 8 and one or more connected to the interface unit 1 Copy or copies of the module 5 via the cellular communication network 3.
  • the module 5 is therefore part of a system 10 (Fig. 1b). At least one measuring device 11, through which Process variables or measured values of the system 10 can be recorded is assigned to the module 5, the Measuring device 11 is arranged in module 5 or is part of system 10.
  • plant 10 is clearly a stationary installed technical device - how for example an energy production plant, an energy distribution plant, a Energy consumption system, a control system for energy or traffic, a building management system, a Alarm or monitoring system, a manufacturing or sales system, etc. - meant.
  • An advantageous arrangement for that which can be remotely measured and / or remotely controlled from a station 8 System 10 thus comprises the interface unit 1, the module 5 and at least one copy of the Measuring device 11.
  • An advantageous embodiment of the interface unit 1 has a first one with the antenna 2 connected module 21 for transmitting and receiving radio signals, a second module 22 for Equalization of radio signals, a third module 23 for authentication of communication partners, a fourth module 24 for encrypting and decrypting data streams and a fifth Module 25 for the formation and nesting of data packets.
  • the interface unit 1 comprises in addition at least one processor unit 26, a first memory area 27 with read only memory (ROM) and a second memory area 28 with random access memory (RAM), which is advantageous is at least partially implemented as non-volatile memory (Nonvolatilc RAM).
  • a device for equalizing radio signals also becomes an equalizer in transmission technology called.
  • the interface unit 1 has a data interface 30 for the connecting means 4 (FIGS. 1a, 1b) via which the interface unit 1 is connected to the module 5 (Fig. 1a, Fig. 1b).
  • the data interface 30 is, for example, a bidirectional serial data interface.
  • the interface unit 1 further comprises a first connection element 31 for a voltage source 32 and with advantage also a second connection element 33 for one shown in dashed lines in the drawing High-performance antenna 34, which is advantageously an antenna with radiation-coupled rods - that is, one so-called YAGI-UDA antenna - is.
  • the connecting means 4 is implemented as a data communication network, via which the Interface unit 1 is connected to various types of module 5.
  • a first one Version 5.1 of module 5 is an electricity meter, the measured values of which Interface unit 1 for billing purposes to station 8 (Fig. 1a, Fig. 1b) are transferable.
  • the Measuring device 11 is here appropriately a device for acquiring a related Power or amount of energy or a device for recording a peak power. The transfer the measured values are typically triggered by station 8 or by the first version 5.1. It it goes without saying, however, that the interface unit 1 can be configured such that the Transfer of the measured values could also be triggered by the interface unit 1.
  • a second version 5.2 of the module 5 is a gas meter, the measured values of which Interface unit 1 can be transferred to the station 8 (Fig. 1a, Fig. 1b).
  • the measuring device 11 is here accordingly, for example, a device for recording a gas quantity or a device for detecting the state of an actuator.
  • a third version 5.3 of the module 5 is a heating controller, its parameters and its Operation from station 8 (Fig. 1a, Fig. 1b) can be changed or programmed.
  • the Measuring device 11 is therefore here, for example, a device for detecting Climate variables, a device for detecting the state of an actuator or a device for Acquisition of energy quantities.
  • a fourth version 5.4 of the module 5 is a terminal of a building management system, the Operation from station 8 (Fig. 1a, Fig. 1b) is changeable or programmable, and from operating data, process variables or measured values can be transferred to station 8.
  • the Measuring device 11 is therefore here, for example, a device for detecting Indoor climate values, a device for detecting the position of an actuator, a device for Detection of the presence of people or a device for recording amounts of energy.
  • a fifth version 5.5 of the module 5 is a payphone.
  • the measuring device 11 is here Appropriately, for example, a device for recording a credit to compensate for a Service.
  • a sixth version 5.6 of the module 5 is an alarm system, the alarm system being from Station 8 (Fig. 1a, Fig. 1b) is controllable and alarm messages can be transmitted to station 8.
  • the Measuring device 11 is therefore here, for example, a device for detecting a Alarm condition.
  • a seventh version 5.7 of the module 5 is a pay TV apparatus for which the interface unit Program offers are requested and / or paid for.
  • the measuring device 11 is here Appropriately, for example, a device for recording a selected service or Device for recording a credit for payment of the service.
  • An eighth version 5.8 of the module 5 is a vending machine for goods or services that be compensated via the interface unit.
  • the measuring device 11 is therefore appropriate here for example a device for recording a selected service or a device for Entry of a credit to compensate for the service.
  • module 5 is a terminal of an energy control system, the way it works is changeable or programmable from station 8 (FIG. 1a, FIG. 1b) and from the operating data, Process variables or measured values can be transferred to station 8.
  • the measuring device 11 is here appropriately, for example, a device for recording power peaks or Amounts of energy or a device for detecting the state of actuators.
  • the module 5 has a device for reading and changing data Chip card, which is used to identify a user or to compensate for goods or Services is used.
  • the interface device 1 connected to the module 5 enables control of the Modules 5 from the station 8 via the cellular communication network 3, here the term "Control" is very broad and includes, for example, programming, parameterizing and querying data includes.
  • FIG. 4 shows a data flow diagram for an advantageous processing method for a the module 5 (FIG. 1a, FIG. 1b) is transferred to the interface unit 1 via the connecting means 4 Data stream DS.
  • the data stream DS is transformed into a form in which is the error expected in a subsequent transmission in the cellular communication network 3 can be corrected to a reasonable extent in a receiving device.
  • An activity is can generally be broken down into several activities connected via channels and / or data storage. More in References used in the data flow diagram literature are “terminator” for the adjacent System, “Process” or “Task” for the activity, “Data Flow” or “Channel” for the channel and “Pool” or “Data Pool” for the data store.
  • An activity can take the form of an electronic circuit or software as a process or program or routine can be realized, the activity with a software execution also the Target hardware includes.
  • the digital data stream DS occurring in a system part 40 of the interface unit 1 is in a Activity 41 divided into several packets P1 to Pn.
  • the individual bits of a packet Pi are divided into several Data units B1 to Bm, so-called bursts, are distributed and transferred to a further system part 42.
  • Activity 41 therefore carries out an interleaving transformation on the digital data stream DS, in which the bits of the data stream DS are distributed to a plurality of data units B1 to Bm.
  • the Data units B1 to Bm not only include the bits of the data stream DS.
  • the Data stream DS is written line by line into a memory 43.
  • the data stream includes DS the bits b00 to b07 of the first line Z1, the bits b10 to b17 of the second line Z2, the bits b20 to b27 of the third line Z3 and bits b30 to b37 of the fourth line Z4.
  • the memories 43 structured in the table read out column by column.
  • bits b00 to b30 of the first column S1 arranged, in a second data unit B2 the bits b01 to b31 etc.
  • the last data unit B8 has bits b07 to b037 of the eighth column S8
  • the number of data units over which the bits of the data stream DS are divided is called Designated nesting depth.
  • the nesting depth is eight.
  • the nesting transformation is also called interleaving in the transmission technology Interleave depth is called the nesting depth.
  • FIG. 6 several of the module 21 (FIG. 2) for transmitting and receiving radio signals are in time successively received data units Bt1 to Bt4 are shown on a time axis t.
  • the module 22 for equalizing radio signals is advantageously so realizes that interferences that occur in usable modulation methods are eliminated
  • An advantageous signal acquisition, which requires minimal processor power, is made possible by the module 22 also during the analysis and processing of a data unit Bt3 occurring at the time t3 Information used, which was obtained from data units Bt1 and Bt2, that before the current Processed data unit Bt3 have been received.
  • so-called inter-symbol interference in so-called Gaussian minimum shift keying, that is used in GSM can be eliminated by the described adaptive method, which when analyzing and processing a data unit, information from at least one to one previously analyzed and processed data unit used.
  • the module 22 for equalizing radio signals advantageously comprises a further activity 45 (FIG. 7) and a storage unit 46 in which certain analysis and processing Information can be stored and used at a later time.
  • Activity 45 generates from the supplied by the module 21 for transmitting and receiving radio signals in succession Data units Bt1 to Bt4 a digital signal 47 that a system part downstream of the module 21 48 is passed.
  • the interface unit according to the invention is used for the bidirectional transmission of digital Data streams between one or more devices connected to the interface unit or Devices - and a station accessible via a cellular communication network.
  • a digital data stream has different lengths here and typically contains Control commands, status information or a series of measurement data.
  • the high requirements regarding the correction of the expected transmission errors in the data stream are then reachable if the data stream is divided into smaller data packets and the data packets before Transmission arranged in data units and the data units nested in a certain way will.
  • time-division multiplex By said division and arrangement in data units, connected with the nesting of the Data units, is used for data communication between the interface circuit and the station Procedure with so-called multiple access in time-division multiplex enables what is also called the term "time-division multiple access" is known.
  • the depth of the nesting is optimized in such a way that on the one hand the high demands on the Correction of the transmission errors are achievable, however, on the other hand the need for storage space and Processor performance is kept as low as possible.
  • the size of the working memory required in the interface unit is minimal, which on the one hand keeps the manufacturing costs of the interface unit as low as possible and also the Overall reliability of the interface unit is increased.
  • High demands are also placed on a device for receiving and evaluating the cellular Communication network emitted radio waves.
  • the amount of resources for the evaluation of a received signal can be kept particularly small if the required Equalizer device - which is also called the equalizer in radio technology - see above is trained to work adaptively.
  • An advantageous embodiment of the adaptive Equalizer device used to obtain a useful signal from a received data unit also information from data units that were received at an earlier point in time.
  • the Processing received data units are parameters of the equalizer device according to the prevailing reception conditions continuously adapted by adding information from one or more data unit processed earlier is taken into account when processing a data unit will.
  • the advantageously designed adaptive equalizer device has the advantage that the for Equalization required processor power can be kept small even if the Interface unit is arranged in an area in which radio waves are strongly disturbed. It shows It is clear that the adaptive equalizer device can be used with particular advantage if Changes that disturbed the radio waves in the area of the stationary Create interface unit, take place relatively slowly.
  • the interface unit can be essentially with a single chip, advantageously an ASIC.
  • the stationary interface unit with an antenna with radiation-coupled Rods a so-called YAGI UDA antenna
  • YAGI UDA antenna a so-called YAGI UDA antenna

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)
EP97120589A 1996-11-29 1997-11-25 Dispositif pour l'essai et/ou la commande à distance d'un système Withdrawn EP0847163A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97120589A EP0847163A1 (fr) 1996-11-29 1997-11-25 Dispositif pour l'essai et/ou la commande à distance d'un système

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP96119169 1996-11-29
EP96119169A EP0847162A1 (fr) 1996-11-29 1996-11-29 Unité d'interface avec entrelacement pour la transmission de données numériques par un réseau de communication cellulaire
EP97120589A EP0847163A1 (fr) 1996-11-29 1997-11-25 Dispositif pour l'essai et/ou la commande à distance d'un système

Publications (1)

Publication Number Publication Date
EP0847163A1 true EP0847163A1 (fr) 1998-06-10

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EP97120589A Withdrawn EP0847163A1 (fr) 1996-11-29 1997-11-25 Dispositif pour l'essai et/ou la commande à distance d'un système

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EP (1) EP0847163A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2335523A (en) * 1998-03-17 1999-09-22 Ascot Management Solutions Ltd Remote monitoring system using the GSM network
WO2001024569A1 (fr) * 1999-09-28 2001-04-05 Common-Link Ag Systeme pour l'echange de donnees
FR2812961A1 (fr) * 2000-08-08 2002-02-15 Sagem Procede de telereleve de compteurs domestiques a travers un reseau de transmission de donnees et passerelle pour la mise en oeuvre du procede
DE102004017318A1 (de) * 2004-04-06 2005-10-27 Endress + Hauser Gmbh + Co. Kg Verfahren zur Ermittlung der Nutzungsgebühren für ein Feldgerät der Automatisierungstechnik
EP1585257A3 (fr) * 2004-03-19 2007-08-01 Iskraemeco, Merjenje in Upravljanje Energije, D.D. Méthode de surveillance, de lecture et de commande à distance des compteurs de consommation intelligents
AT505204B1 (de) * 2000-12-29 2009-03-15 Sticht Fertigungstech Stiwa Betriebsleiteinrichtung für eine fertigungs- und/oder montageeinrichtung und verfahren zu deren betrieb

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2648293A1 (fr) * 1989-06-09 1990-12-14 American Telephone & Telegraph Emetteur, recepteur et procede de telecommunication pour ameliorer le fonctionnement d'egaliseurs a retroaction dans des systemes de telecommunication utilisant une correction d'erreurs
WO1993004451A1 (fr) * 1991-08-21 1993-03-04 Disys Corporation Systeme de collecte de donnees
US5239584A (en) * 1991-12-26 1993-08-24 General Electric Corporation Method and apparatus for encryption/authentication of data in energy metering applications
WO1995024791A1 (fr) * 1994-03-11 1995-09-14 Bellsouth Corporation Procedes et appareil permettant la communication de donnees par une voie de commande de reseau cellulaire

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2648293A1 (fr) * 1989-06-09 1990-12-14 American Telephone & Telegraph Emetteur, recepteur et procede de telecommunication pour ameliorer le fonctionnement d'egaliseurs a retroaction dans des systemes de telecommunication utilisant une correction d'erreurs
WO1993004451A1 (fr) * 1991-08-21 1993-03-04 Disys Corporation Systeme de collecte de donnees
US5239584A (en) * 1991-12-26 1993-08-24 General Electric Corporation Method and apparatus for encryption/authentication of data in energy metering applications
WO1995024791A1 (fr) * 1994-03-11 1995-09-14 Bellsouth Corporation Procedes et appareil permettant la communication de donnees par une voie de commande de reseau cellulaire
US5546444A (en) * 1994-03-11 1996-08-13 Bellsouth Corporation Methods and apparatus for communicating data via a cellular network control channel

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2335523A (en) * 1998-03-17 1999-09-22 Ascot Management Solutions Ltd Remote monitoring system using the GSM network
GB2335523B (en) * 1998-03-17 2002-08-21 Ascot Man Solution Ltd Monitoring system
WO2001024569A1 (fr) * 1999-09-28 2001-04-05 Common-Link Ag Systeme pour l'echange de donnees
FR2812961A1 (fr) * 2000-08-08 2002-02-15 Sagem Procede de telereleve de compteurs domestiques a travers un reseau de transmission de donnees et passerelle pour la mise en oeuvre du procede
AT505204B1 (de) * 2000-12-29 2009-03-15 Sticht Fertigungstech Stiwa Betriebsleiteinrichtung für eine fertigungs- und/oder montageeinrichtung und verfahren zu deren betrieb
EP1585257A3 (fr) * 2004-03-19 2007-08-01 Iskraemeco, Merjenje in Upravljanje Energije, D.D. Méthode de surveillance, de lecture et de commande à distance des compteurs de consommation intelligents
DE102004017318A1 (de) * 2004-04-06 2005-10-27 Endress + Hauser Gmbh + Co. Kg Verfahren zur Ermittlung der Nutzungsgebühren für ein Feldgerät der Automatisierungstechnik

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