EP2478672A1 - Réseau hiérarchique à gestion décentralisée - Google Patents

Réseau hiérarchique à gestion décentralisée

Info

Publication number
EP2478672A1
EP2478672A1 EP10755151A EP10755151A EP2478672A1 EP 2478672 A1 EP2478672 A1 EP 2478672A1 EP 10755151 A EP10755151 A EP 10755151A EP 10755151 A EP10755151 A EP 10755151A EP 2478672 A1 EP2478672 A1 EP 2478672A1
Authority
EP
European Patent Office
Prior art keywords
network
message
subscriber
subnetwork
network level
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.)
Ceased
Application number
EP10755151A
Other languages
German (de)
English (en)
Inventor
Frank Hakemeyer
Vladimir FRÖSE
Stefan Witte
Maik Stemme
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.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact GmbH 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 Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP2478672A1 publication Critical patent/EP2478672A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/403—Bus networks with centralised control, e.g. polling

Definitions

  • the invention relates to a network comprising a plurality of subscribers and a message transmission device for transmitting messages between the subscribers.
  • Networks comprising a plurality of subscribers, between which messages can be transmitted by means of a message transmission device, are well known.
  • Subscribers can be arranged within the network in different logical structures, wherein it is known to arrange the participants in the form of a tree structure.
  • a participant is at the top, the other participants join this participant.
  • the subscriber standing at the top of the tree structure is part of a top, first network level, the subscribers directly connected to this subscriber belong to a second network level subordinate to the first network level, which immediately adjoin the latter subscribers
  • Participants are part of a third, the second network level subordinate network level, etc.
  • the second network level subordinate network level, etc.
  • Tree structure only connections between participants of adjacent network levels are allowed. Connections within a network layer are prohibited. Furthermore, one is
  • Participants apart from the participant at the top of the tree structure, exactly connected to a participant of a neighboring higher network level. Furthermore, multiple subscribers of a subordinate network level may be connected to a single subscriber of the adjacent superordinate network level.
  • the participants of a network are also called
  • Network node or "node”. Furthermore, depending on the function of the subscriber, a distinction is made between master subscriber, repeater slave subscriber and slave subscriber Attendees. The master participant forms the central point of the network. Initialization and network specific
  • the participant at the top is a master participant.
  • a repeater slave participant is set up to exchange messages between neighboring ones
  • a slave participant does not forward messages. Slave participants always form end points of the network.
  • networks are typically managed via a central processing unit such as a master subscriber.
  • management includes organization, management and control of the network
  • An example of a network managed by a central processing unit is the WLAN system known in the IEEE 802.11 standard, in which an access point forms the central unit and the participants, also called “clients”, managed and operated.
  • Another example is the new Wireless HART technology, based on the IEEE 802.15.4 standard and also a
  • Central unit used to organize, manage and control the wireless network.
  • Central unit must be forwarded to a subscriber, possibly needs to be transported across the entire network.
  • the subscribers located between the central unit and the subscriber for whom the message is intended must forward the message. This leads to increased network traffic and, in the case of a wireless network, to more activity in the network
  • the management of a network by a central processing unit means bundling network maintenance in one device. This results in the risk that the loss of this device, the entire management knowledge is lost. Furthermore, the device requires a high computing power, which results in high energy consumption and higher costs.
  • the object of the present invention is to provide a network which enables reduced network traffic.
  • the network comprises at least a first participant, a second participant, a third participant and a message transmission device for transmitting messages between the participants, wherein the first
  • Subscriber is arranged in a third network level, wherein the first network level of the second network level is superior, and the second network level of the third network level superior, wherein the network is arranged such that the second subscriber and the third party, a transmission of a message between the second Participants and the third party can initiate, with the transmission of the message on the
  • the network is decentralized. This means that messages transmitted in the network are not directed exclusively to a central unit of the network or originate from a central unit of the network, but that messages can also be transmitted between subscribers without the involvement of a central unit. In this way it is possible to reduce the traffic load in the network. The central unit can be relieved in this way and the power consumption in the network can be reduced.
  • first and second network level and / or the second and third network level can more
  • Network levels are. It is preferred that the first and second network levels and the second and third network levels are immediately adjacent.
  • the message is a network management message for managing the network.
  • Network Management is the organization, management, and control of the network, so Network Management Messages are messages that organize, manage, and / or control the network.
  • the network additionally comprises a first subnetwork and a second subnetwork, wherein the first subscriber and the second subscriber
  • Subscriber and the third subscriber are subscribers of the second subnetwork, the first subnetwork subscribing to subscribers between the first network level and the second subnetwork
  • Network level is limited, and the second subnetwork is limited to subscribers between the second and the third network level, wherein within the first subnetwork and the second subnetwork between at least two of the subscribers of the respective subnetwork, the transmission of a message can be initiated, wherein the transmission of the message is limited to the respective subnetwork.
  • subnetworks may be formed in parallel between common network levels.
  • the second subnetwork has exactly one subscriber who is a subscriber of the higher-order first subnetwork. It is preferred that the subscribers of a subnetwork, who are both subscribers of a superordinate subnetwork, for the
  • parent subnetwork is exactly one participant for network management within the child
  • Parent subnetwork uniquely determines who is responsible for network management in the child subnetwork
  • the network be in its
  • Network structure is structured as a tree structure.
  • the first participant is preferably a master participant.
  • the second subscriber is preferably a repeater slave subscriber, the third subscriber is a repeater slave subscriber or a slave subscriber.
  • network levels may be the first subscriber to be a repeater slave participant.
  • FIG. 1 is a schematic representation of an embodiment of a network according to the invention
  • Fig. 2 shows the network shown in Fig. 1 in execution
  • Fig. 3 shows the network shown in Fig. 1 when executed
  • Fig. 1 shows an embodiment of a network according to the invention in a schematic representation.
  • the network 1 is in its structure as a tree structure
  • the first network level is a first participant 2, which forms the top of the tree structure.
  • the first participant 2 is here a master participant, the initialization and
  • second network level which is subordinate to the first network level, there are two second subscribers 3a, 3b, which in this exemplary embodiment are both repeater slave subscribers
  • Main function of the second participants 3a, 3b is the forwarding of messages.
  • Network level which is subordinate to the second network level, there are four third participants 4a, 4b, 4c, 4d.
  • the two third participants 4a and 4b are with the second Subscriber 3a connected, two more of the third participants 4c, 4d are connected to the second subscriber 3b.
  • Two of the four third subscribers 4a, 4d are designed as slave subscribers, the other two of the four third subscribers 4b, 4c are designed as repeater slave subscribers.
  • the fourth network level comprises a fourth subscriber 5.
  • the fourth subscriber 5 is connected to the third subscriber 4b.
  • the fourth subscriber 5 is connected to the third subscriber 4b.
  • Participant 5 is executed as a repeater slave participant, but in its function forms an end point of the network 1.
  • Network 1 is replaced by a
  • Messaging device 6 ensures, via the messages between the participants of the network. 1
  • the network 1 is set up in such a way that the transmission of a message only from a subordinate network level to a higher level network
  • Network level and / or takes place from a parent network level in a subordinate network level.
  • the network 1 is as
  • Radio network formed, the first participant 2, the second participants 3a, 3b, the third participants 4a, 4b, 4c, 4d and the fifth participant 5 are designed as radio stations.
  • the message transmission takes place by means of radio waves.
  • Messaging device 6 transmits the radio waves between the individual participants, so may be formed in particular by air.
  • the network 1 can also be designed as a wired network 1.
  • the message transmission device 6 comprises one or more wires and / or tracks, which connect the participants of the network 1 for transmitting messages. As can be seen from Fig. 1, apart from the first participant 2, each participant of the network 1 has exactly one connection to a participant, who in a
  • a subscriber may have connections to several subscribers located in a subordinate network level.
  • the second participant 3a has exactly one
  • the network 1 is subdivided into four subnetworks 7, 8a, 8b, 9.
  • the first subnetwork 7 comprises the first user 2 and the second users 3a, 3b
  • the second subnetwork 8a comprises the second user 3a and the two third
  • Subscriber 4a, 4b, the third subnetwork 8b comprises the other second subscriber 3b and the two remaining third subscribers 4c, 4d
  • the fourth subnetwork 9 comprises the third subscriber 4b and the fourth subscriber 5.
  • the second subscriber 3a is both subscriber of the first subnetwork 7 and the second subnetwork 8a
  • the other second subscriber 3b is both a subscriber of the first subnetwork 7 and the third subnetwork 8b
  • the third party 4b is both party of the second subnetwork 8a and the fourth subnetwork 9.
  • the second subnetwork 8a and the third subnetwork 8b are parallel between the second
  • Network level and the third network level arranged.
  • the network 1 is set up such that the transmission of a message can be initiated within the first subnetwork 7, the second subnetwork 8a, the third subnetwork 8b and the fourth subnetwork 9 between the subscribers of the respective subnetwork, wherein the Transmission of the message is limited to the respective subnetwork.
  • the message is a network management message for managing the
  • the network 1 is set up in such a way that the subscribers, who are both part of a parent subnetwork and a subordinate subnetwork, for the
  • the second user 3a assumes the network management functions for the second subnetwork 8a, the other second user 3b for the third subnetwork 8b, and the third user 4b handles network management functions for the fourth subnetwork 9.
  • the network management message may be a synchronization message that is the parent
  • Participant for example, the second participant 3a, also called “parent”, to the third associated with him
  • Subscribers 4a, 4b also called “children", transmit by means of this synchronization message the third subscribers 4a, 4b can access the second subscriber 3a
  • the message may be a capture request message from a child, such as the third
  • Subnetwork 7, 8a, 8b, 9 is transmitted, a
  • the first participant 2 communicates with his children, the second participants 3a, 3b, in a frequency band f i.
  • the second party 3a notifies its children, the third party 4a, 4b, to change to a new frequency band fi + x.
  • the second subscriber 3b notifies his children, here the third subscribers 4c, 4d, likewise to change to the frequency band fi + y.
  • the third party 4b informs its child, here the fourth party 5, to change to the frequency band fi + z.
  • the individual participants of the network 1 are the individual participants of the network 1 .
  • the network management message may have a
  • the network management message may be a parent-initiated message to one of its children looking for a different parent, activating an install mode, or activating a sleep mode to install or deactivate the child.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Small-Scale Networks (AREA)

Abstract

L'invention concerne un réseau comportant au moins un premier dispositif utilisateur (2), un deuxième dispositif utilisateur (3a, 3b), un troisième dispositif utilisateur (4a, 4b, 4c, 4d) et un dispositif de transmission de messages (6) destiné à transmettre des messages entre les dispositifs utilisateurs. Le premier dispositif utilisateur (2) est disposé à un premier niveau du réseau, le deuxième dispositif utilisateur (3a, 3b) est disposé à un deuxième niveau du réseau et le troisième dispositif utilisateur (4a, 4b, 4c, 4d) est disposé à un troisième niveau du réseau. Le premier niveau du réseau est supérieur au deuxième niveau du réseau et le deuxième niveau du réseau est supérieur au troisième niveau du réseau. Le réseau est conçu de façon que le deuxième dispositif utilisateur (3a, 3b) et le troisième dispositif utilisateur (4a, 4b, 4c, 4d) peuvent initier la transmission d'un message entre eux, la transmission du message étant limitée à cette transmission de message entre le deuxième niveau du réseau et le troisième niveau du réseau.
EP10755151A 2009-09-18 2010-09-17 Réseau hiérarchique à gestion décentralisée Ceased EP2478672A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009041821A DE102009041821A1 (de) 2009-09-18 2009-09-18 Netzwerk
PCT/EP2010/063695 WO2011033060A1 (fr) 2009-09-18 2010-09-17 Réseau hiérarchique à gestion décentralisée

Publications (1)

Publication Number Publication Date
EP2478672A1 true EP2478672A1 (fr) 2012-07-25

Family

ID=42983327

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10755151A Ceased EP2478672A1 (fr) 2009-09-18 2010-09-17 Réseau hiérarchique à gestion décentralisée

Country Status (5)

Country Link
US (1) US20120173672A1 (fr)
EP (1) EP2478672A1 (fr)
CN (1) CN102549976B (fr)
DE (1) DE102009041821A1 (fr)
WO (1) WO2011033060A1 (fr)

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Also Published As

Publication number Publication date
WO2011033060A1 (fr) 2011-03-24
CN102549976B (zh) 2016-05-25
US20120173672A1 (en) 2012-07-05
DE102009041821A1 (de) 2011-03-24
CN102549976A (zh) 2012-07-04

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