EP1537459A1 - Dispositif pour transmettre, echanger et/ou faire suivre des donnees et/ou des informations - Google Patents

Dispositif pour transmettre, echanger et/ou faire suivre des donnees et/ou des informations

Info

Publication number
EP1537459A1
EP1537459A1 EP02772161A EP02772161A EP1537459A1 EP 1537459 A1 EP1537459 A1 EP 1537459A1 EP 02772161 A EP02772161 A EP 02772161A EP 02772161 A EP02772161 A EP 02772161A EP 1537459 A1 EP1537459 A1 EP 1537459A1
Authority
EP
European Patent Office
Prior art keywords
unit
information
data
units
network
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Withdrawn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
EP02772161A
Other languages
German (de)
English (en)
Inventor
Sebastian Heidepriem
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.)
Endress and Hauser SE and Co KG
Original Assignee
Endress and Hauser SE and Co KG
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 Endress and Hauser SE and Co KG filed Critical Endress and Hauser SE and Co KG
Publication of EP1537459A1 publication Critical patent/EP1537459A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0421—Multiprocessor system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25198—Brouter: transfers data from wireless to wired networks, router: wired to wired
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/31—From computer integrated manufacturing till monitoring
    • G05B2219/31102—Program network controller, connected devices

Definitions

  • the invention relates to a device for transmitting, exchanging and / or forwarding data and / or information in industrial process and / or automation technology.
  • sensors or transmitters communicate digitally with one another and / or with a remote control point via a bus system.
  • a prerequisite for smooth communication is, on the one hand, continuous availability and, on the other hand, a sufficiently large capacity for the data line used in the bus system.
  • the data line is usually a two- or multi-core cable. If the data line fails for any reason or if its capacity is exhausted, this means that rapid and timely data transmission, for example the transmission of a measured value, can no longer take place. If one considers the case that a safety valve has to be opened or closed depending on the measured value to be transmitted, it goes without saying that conventional bus systems cannot readily take sufficient account of the high safety requirements in process and automation technology.
  • the invention has for its object to propose a device that allows redundant communication without overloading the data lines.
  • a first unit and at least a second unit communicate with one another, one unit being a transmitter or a sensor which provides a measured value for determining a physical or chemical variable.
  • the at least two units belong to a network or to a network of a plurality of units which communicate with one another either directly or indirectly via at least one intermediate unit, each of the units having at least two physical communication interfaces and each unit being assigned at least one microprocessor.
  • the device according to the invention uses multiple networking of the sensors and / or transmitters - analogous to a network of computers that pass on data and / or information via the Internet. This makes it possible to optimally utilize the data lines. Even when large amounts of data are being transmitted, relatively short transmission times can be achieved, since the data can be sent to the addressee in parallel in different ways, for example.
  • redundant data communication is possible because usually a sensor or a transmitter can exchange data and information with another sensor or transmitter in several different ways. As a result, it is possible for the individual units to communicate with one another without the entire bus system always being subjected to excessive loads.
  • this enables the use of small bandwidths for the transmission of data and / or information, which in turn results in increased interference immunity in communication.
  • this is particularly advantageous if the units, sensors or transmitters are used in potentially explosive areas.
  • the use of small bandwidths for data transmission is widespread.
  • the transmitter or the sensor is a fill level measuring device, a pressure transmitter, a flow sensor, a temperature sensor or an analysis device.
  • the applicant or companies affiliated with the applicant sell a large number of sensors and transmitters for determining and / or monitoring physical and / or chemical measured variables.
  • one of the units used in the device according to the invention does not of course have to be a transmitter or a sensor.
  • the term unit can describe a unit of whatever type with at least two physical communication interfaces and a microprocessor.
  • a unit can of course also be a communication unit, a router, an evaluation / control unit, a parameterization unit or an actuator.
  • the device in the microprocessor of a first unit, which sends data and / or information to at least one second unit, information about the Topology of the network is included and that this information is preferably transmitted via the topology with the data and / or information.
  • the route to the data and / or information to be transmitted is also given, as it were, the quickest way to get to the respectively addressed unit - hereinafter to the respective addressee.
  • the information about the topology of the network is stored in the microprocessors of at least some of the units, so that the corresponding unit can be addressed to the addressee the data and / or the information should arrive, recognizes in which way or via soft alternative routes it must send or forward the data and / or the information.
  • a unit determines the topology of the network by communication with the neighboring unit or the neighboring units, stores the determined information in a storage unit and thus recognizes in which way or in which alternative ways it is Sends and / or forwards data and / or the information preferably.
  • a unit determines once, sporadically or cyclically the performance of a communication path to the different units communicating directly or indirectly with it and stores the individual communication paths with different classifications in an assigned storage unit.
  • a unit forwards the data and / or the information to at least any unit; the unit receiving the data and / or information in each case forwards the data and / or the information in the same way until they ultimately reach the unit to which the data and / or the information is addressed.
  • a unit only forwards the data and / or information as long as a predetermined number of forwardings has not yet been reached.
  • the units transmit the data and / or information according to predetermined priority criteria.
  • a unit selects a number of independent communication paths in order to transmit the data and / or the information in parallel. This embodiment allows large amounts of data to be transmitted quickly to the respective addressee.
  • converters which are assigned to the units, so that the units can communicate with one another via different types of transmission.
  • These converters can also be sensors that support different types of transmission at the different interfaces.
  • either communication lines or optical fibers or paths of so-called wireless data and / or information transmission are used as communication paths.
  • FIG. 2 shows a block diagram of a first variant of the network according to the invention
  • FIG. 1 shows a schematic representation of a known bus system 1, via which several units A, B, C, D, E, F communicate with one another or with a remote control point, which is not shown separately in FIG. 1.
  • the units A, B, C, D, E, F are sensors, transmitters, evaluation units, parameterization units or other devices.
  • a disadvantage of the known digital communication bus systems 1 is that any communication between any two units, e.g. A and D, the entire bus system 1 is always loaded. This is due to the fact that not only the desired addressee, but inevitably every unit B, C, E, F connected to the bus 1 receives the data and / or the information that is transmitted between the units A, D - and in a completely detached manner whether the data and / or the information is needed or not.
  • FIG. 2 shows a block diagram of a first variant of the network 2 according to the invention of several units A, B, C, D, E, F.
  • Each of the units A, B, C, D, E, F has at least two physical interfaces 4.
  • Each unit A, B, C, D, E, F is connected to at least one further unit via the physical interfaces 4.
  • all units A, B, C, D, E, F are directly or indirectly connected to one another. There is therefore no longer - as in the prior art - a bus system 1 (see FIG.
  • the network 2 shows a structure which typical for the Internet: In addition to the direct and / or shortest connection between two units, longer and / or indirect connections via third units are always available.
  • the communication paths 3, via which the units A, B, C, D, E, F communicate with one another, are e.g. B. data lines or optical fibers; Of course, communication can also take place wirelessly.
  • the following units can communicate directly with one another as a result of the direct physical coupling: A and B, A and C, B and C, B and D, C and E, E and D, E and F, D and F.
  • unit A does not communicate directly with unit E.
  • unit A can send the data to unit C, and this unit C can further transmit the data to unit E.
  • the communication paths between A and B, B and C, B and D, D and E, D and F and E and F are not burdened at all by the data transmission.
  • FIG. 3 shows an enlarged schematic illustration of the section marked III in FIG. 2.
  • the unit C shown has three physical communication interfaces 4.
  • the unit C is directly connected to the neighboring units A, B, E via communication paths 3. It is directly networked with all other units D, F.
  • This configuration is completely independent of the type of transmission used in each case.
  • the HART protocol, the Ethernet standard, the Profibus PA or the Fieldbus Foundation standard are examples of different types of transmission.
  • converters 5 are provided which support the different types of transmission at the communication interfaces 4.
  • the transmission of data and / or information is supported by the microprocessor 6.
  • a memory unit 7 is assigned to this microprocessor 6.
  • a unit A, B, C, D, E, F knows the topology of the network 2 and knows which communication path 4 or which alternative communication path 4 the data and / or the information must be transmitted in order to reach the desired addressee to arrive. This information about the topology of the network 2 is given along with the data and / or the information.
  • the topology is stored, for example, in the storage unit 7 of a unit A, B, C, D, E, F.
  • Each unit A, B, C, D, E, F knows which address the address to which the data and / or the information should go Communication path 4 or on which alternative communication path 4 it must forward the data and / or the information.
  • a unit A, B, C, D, E, F determines the topology of the network 2 via trial / error processes by sending the data and / or information to the units adjacent to it. For example, this process is repeated until the data and / or the information has reached the desired addressee.
  • the information about the topology of the network 2 determined in this way is stored in the storage units 7 of the units A, B, C, D, E, F.
  • the performance (utilization, speed) of a communication path 4 can be tested and saved. It can also be provided that the data and / or the information is no longer forwarded as soon as a maximum predetermined number of failed attempts has been reached or as soon as the data and / or the information has exceeded a certain age.
  • the data and / or the information can be given priorities, the data and / or information having the highest priority being preferably forwarded on the short and fast communication paths 4.
  • FIG. 4 shows a block diagram of a second variant of the network 2 according to the invention.
  • FIG. 4 shows that two different types of transmission can occur in the network composed of the individual units A, B, C, D, E, F.
  • the prerequisite for this is the existence of converters 5 between the different types of transmission.
  • the units A, B, C, D, E, F themselves can also take on the function of the converter.
  • a first type of transmission e.g. HART
  • a second type of transmission for. B. Profibus PA
  • FIG. 5 shows a block diagram of a third variant of the network 2 according to the invention.
  • the communication paths 4 can be optimally used due to the multiple networking. Is z. B. the load between the units A, B is very high, the data and / or information via the communication paths 4 between A and C and C and B can still quickly reach the desired addressee B. Since a bus system 1 in the conventional sense, which is burdened by the communication between two units, is no longer present, significantly smaller and consequently interference-free bandwidths can be used for digital communication. Incidentally, small bandwidths prove to be particularly advantageous if the units A, B, C, D, E, F are used in potentially explosive areas. As already said above, the use of different types of transmission in a network 2 presents no problems.
  • An optimization of the communication in the network 2 according to the invention can be achieved in that the data and / or information to be transmitted are provided with a priority indicator.
  • 5 shows the case in which the data flow between units A, B is prioritized.
  • an increase in capacity can therefore be achieved compared to the known solutions.
  • a service case for a fill level measuring device which determines the fill level on the basis of the echo curve.
  • the amplitude values of the measurement signals are plotted on the echo curve as a function of the transit time or the running distance of the measurement signals.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Health & Medical Sciences (AREA)
  • Computing Systems (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)

Abstract

L'invention concerne un dispositif pour transmettre, échanger et/ou faire suivre des données et/ou des informations, dans le cadre de la technologie des procédés industriels et/ou de l'automatisation, entre une première unité (A ; B ; C ; D ; E ; F) et au moins une deuxième unité (A ; B ; C ; D ; E ; F). Une de ces unités (A ; B ; C ; D ; E ; F) est un émetteur ou un capteur fournissant une valeur de mesure pour déterminer une grandeur physique ou chimique. Lesdites unités font partie d'un ensemble combiné ou d'un réseau (2) de plusieurs unités (A ; B ; C ; D ; E ; F) qui communiquent les unes avec les autres directement ou indirectement au moyen d'au moins une unité intermédiaire, chacune des unités (A ; B ; C ; D ; E ; F) comprenant au moins deux interfaces physiques de communication (4) et au moins un microprocesseur (6).
EP02772161A 2002-08-16 2002-08-16 Dispositif pour transmettre, echanger et/ou faire suivre des donnees et/ou des informations Withdrawn EP1537459A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2002/009191 WO2004019146A1 (fr) 2002-08-16 2002-08-16 Dispositif pour transmettre, echanger et/ou faire suivre des donnees et/ou des informations

Publications (1)

Publication Number Publication Date
EP1537459A1 true EP1537459A1 (fr) 2005-06-08

Family

ID=31896806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02772161A Withdrawn EP1537459A1 (fr) 2002-08-16 2002-08-16 Dispositif pour transmettre, echanger et/ou faire suivre des donnees et/ou des informations

Country Status (4)

Country Link
US (1) US20060164771A1 (fr)
EP (1) EP1537459A1 (fr)
AU (1) AU2002336980A1 (fr)
WO (1) WO2004019146A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10352307A1 (de) * 2003-11-06 2005-06-09 Endress + Hauser Flowtec Ag, Reinach Verfahren zum Übertragen von Messwerten zwischen zwei Messumformen
US7904184B2 (en) * 2004-11-23 2011-03-08 Rockwell Automation Technologies, Inc. Motion control timing models
US7983769B2 (en) * 2004-11-23 2011-07-19 Rockwell Automation Technologies, Inc. Time stamped motion control network protocol that enables balanced single cycle timing and utilization of dynamic data structures
US7792126B1 (en) * 2005-05-19 2010-09-07 EmNet, LLC Distributed monitoring and control system
DE102011083254A1 (de) * 2011-09-23 2013-03-28 Robert Bosch Gmbh Verfahren und Vorrichtung zum Koppeln eines ersten Sensors mit zumindest einem zweiten Sensor
US9250928B2 (en) 2011-10-18 2016-02-02 Mcafee, Inc. Cooperative mobile analytics
CN109557838B (zh) * 2017-09-27 2021-12-07 浙江苏泊尔家电制造有限公司 家电控制方法及装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100191336B1 (ko) * 1990-01-22 1999-06-15 렌나르트손켄트 분산제어 체계용 배열
US5930257A (en) * 1996-01-25 1999-07-27 Baynetworks, Inc. Network router that routes internetwork packets between distinct networks coupled to the same physical interface using the physical interface
US5978364A (en) * 1996-02-29 1999-11-02 Philips Electronics North America Corporation Method for routing data packets within a wireless, packet-hopping network and a wireless network for implementing the same
US6728205B1 (en) * 1997-02-19 2004-04-27 Massachusetts Institute Of Technology Method and apparatus for automatic protection switching
US5874903A (en) * 1997-06-06 1999-02-23 Abb Power T & D Company Inc. RF repeater for automatic meter reading system
US7342897B1 (en) * 1999-08-07 2008-03-11 Cisco Technology, Inc. Network verification tool
AT5159U1 (de) * 2000-12-13 2002-03-25 Atb Automatisierungstechnik Gm Verfahren zur eingabe von zwischen teilnehmern eines datennetzwerkes liegenden übertragungsstrecken in ein konfigurationsgerät

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004019146A1 *

Also Published As

Publication number Publication date
AU2002336980A1 (en) 2004-03-11
US20060164771A1 (en) 2006-07-27
WO2004019146A1 (fr) 2004-03-04

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