EP1515873A1 - Procede et systeme pour le passage d'un mode de fonctionnement sous-reseau a un mode de fonctionnement reseau complet - Google Patents

Procede et systeme pour le passage d'un mode de fonctionnement sous-reseau a un mode de fonctionnement reseau complet

Info

Publication number
EP1515873A1
EP1515873A1 EP03757155A EP03757155A EP1515873A1 EP 1515873 A1 EP1515873 A1 EP 1515873A1 EP 03757155 A EP03757155 A EP 03757155A EP 03757155 A EP03757155 A EP 03757155A EP 1515873 A1 EP1515873 A1 EP 1515873A1
Authority
EP
European Patent Office
Prior art keywords
unit
network operation
bus
data bus
messages
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Withdrawn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
EP03757155A
Other languages
German (de)
English (en)
Inventor
Matthias Muth
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.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Intellectual Property and Standards GmbH
Koninklijke Philips Electronics NV
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 DE10225775A external-priority patent/DE10225775A1/de
Priority claimed from DE2002125776 external-priority patent/DE10225776A1/de
Application filed by Philips Intellectual Property and Standards GmbH, Koninklijke Philips Electronics NV filed Critical Philips Intellectual Property and Standards GmbH
Publication of EP1515873A1 publication Critical patent/EP1515873A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H04L12/40006—Architecture of a communication node
    • H04L12/40039—Details regarding the setting of the power status of a node according to activity on the bus

Definitions

  • the present invention relates to a method for transferring a serially networked system, in particular a serial data bus system, from a partial network operation in which at least one node and / or at least one subscriber of the system is in a state of reduced power consumption and by the signal level of the data traffic on the System is not addressed and / or is not activated, in a total network operation in which all nodes and / or all participants in the system are addressed and / or activated by the signal level of the data traffic on the system.
  • the present invention further relates to a serially networked system, which is of a partial network operation, in which at least one node and / or at least one subscriber of the system is in a state of reduced power consumption and is not addressable and / or by the signal levels of the data traffic on the system cannot be activated, in a total network operation in which all nodes and / or all participants in the system can be addressed and / or activated by the signal level of the data traffic on the system.
  • Comfort functions are also active when the motor vehicle is in the parked state and must then be operated directly from the vehicle battery.
  • E [electro] M [magnetic] radiation [tolerance] play a role; a second driver stage is also required to generate the other level scheme.
  • the present invention is based on the inadequacies and appreciation of the outlined prior art, the task of developing a method of the type mentioned at the outset and a system of the type mentioned at the outset such that the nodes and / or the subscribers in the network, that is to say on the data bus, in a simple manner and yet can be awakened effectively.
  • the next change in level such as a new message from another subscriber
  • the idle phase or the critical period of time is to be set in such a way that the normal time gaps between the messages of the subnetwork operation are not sufficient to detect an end of the subnetwork operation.
  • the nodes or participants of the subnetwork expediently send messages cyclically, in order to ensure that the "selectively sleeping" nodes or participants are not woken up (such cyclical messages are normally part of a network management system, as is used as standard in automotive technology, and therefore do not constitute a separate one Effort).
  • This signal level pattern which advantageously does not occur in the rest of the data traffic, can expediently be identified by at least one in the
  • State of reduced current consumption nodes and / or by at least one participant in the state of reduced current consumption are detected.
  • the present invention further relates to a transceiver unit, in particular for performing a method according to the type set out above and / or in particular assigned to at least one system of the type set out above; the transceiver unit is connected to at least one serial data bus, in particular to at least one controller A [rea] N [approximately] bus, and is connected to at least one microcontroller unit provided for executing at least one application.
  • At least one control logic is assigned to the transceiver unit and / or at least one control logic is implemented in the transceiver unit.
  • the present invention further relates to a voltage regulator connected to at least one battery unit and connected to at least one transceiver unit, in particular in accordance with the type set out above, for supplying voltage to at least one microcontroller unit provided for executing at least one application if at least one defined, in particular a continuous and / or in particular symmetrical signal level pattern in at least one incoming message associated with at least one application pending on at least one serial data bus, in particular on at least one controller [A] rea [N] approximately bus, by the transceiver unit.
  • the present invention further relates to a chip unit, in particular a system chip unit, for addressing and / or activating at least one at least one serial data bus, in particular at least one controller assigned to a [rea] N [approximately] bus, for executing at least one application provided microcontroller unit;
  • the chip unit comprises: at least one transceiver unit according to the type set out above; and - at least one voltage regulator of the type set out above.
  • the present invention further relates to a microcontroller unit, which is assigned to at least one serial data bus, in particular at least one controller, and is intended for exporting at least one application and is to be supplied with voltage only in the case of the Detection of at least one defined, in particular continuous and / or in particular symmetrical signal level pattern in at least one incoming message on the data bus and assigned to at least one application by at least one transceiver unit, in particular in accordance with the type set out above.
  • the microcontroller unit can be activated by the transceiver unit.
  • the present invention relates to the use of: a method according to the type set out above; and / or - at least one system of the type set out above; and / or at least one chip unit of the type set out above; and / or at least one microcontroller unit according to the type set out above in automotive electronics, in particular in the electronics of motor vehicles.
  • FIG. 1 is a schematic block diagram of an exemplary embodiment of a system based on the method according to the present invention according to the present invention
  • FIG. 2 is a schematic block diagram of a detailed section of the system from FIG. 1;
  • FIGS. 1 and 2 are schematic chronological sequence of an exemplary embodiment for a procedural transition of the system from FIGS. 1 and 2 from the state of sub-network operation to the state of overall network operation;
  • FIG. 4 is a schematic illustration of an exemplary embodiment for a defined signal level pattern that does not occur in the rest of the current data traffic.
  • Fig. 1 shows a for C [ontroller] A [rea] N [approximately] applications in the
  • Automotive electronics namely in the electronics of motor vehicles, exemplary implementation provided for a serially networked CAN system 100.
  • This serially networked system 100 has five subscribers 30, 32, 34, 36, 38, which via a respective assigned node 20, 22, 24, 26, 28 to a serial Controller]
  • a [rea] N [ehork] data bus 10 are connected and which are designed, for example, as a system chip unit (possibly including a transceiver unit) and / or as a microcontroller unit, for example as an application controller unit and / or as a protocol controller unit.
  • the structure, the function and the structure of the subscribers 30, 32, 34, 36, 38 provided for executing applications (so-called applications) are exemplarily illustrated in FIG. 2 on the basis of a detailed illustration of the first subscriber 30 that is connected to the node 20 of the CAN data bus 10 is connected and which can be addressed and / or activated via this CAN data bus 10.
  • the principle of operation is as follows:
  • the transceiver unit 84 switches on a voltage regulator 86 connected to the transceiver unit 84 via a feed line 76 and connected to the transceiver unit 84 886.
  • Transceiver 84 no message, message or message pending on the CAN data bus 10 is recognized, the voltage regulator 86 is not switched on.
  • the system 100 can be configured and controlled via a mode control interface 982 between the transceiver unit 84 (or the system chip unit 80) and the microcontroller unit 90.
  • a sub-network operation T is defined by the remaining three active participants 30, 34, 36, that is to say the three participants 30, 34, 36 communicate with one another (this is indicated by the double arrow between the active participant 30 and the active participant 34 and by the double arrow between symbolizes the active subscriber 34 and the active subscriber 36) and are addressed by the signal levels 40, 42, 44 of the data traffic on the system 100.
  • this critical time period ⁇ t is again set greater than the time interval ⁇ t d between the individual messages, messages and telegrams of the data traffic on the system 100, so that the normal time gaps ⁇ t d between the messages, messages and telegrams of the subnetwork operation T are insufficient to detect an end of sub-network operation T.
  • the nodes 20, 24, 26 or the participants 30, 34, 36 send messages, messages and telegrams in cyclic time intervals, which are smaller than the critical ⁇ t, during sub-network operation T, in order to ensure that the "Selectively sleeping" nodes 22, 28 or the "selectively sleeping” nodes 32, 38 are not woken up during sub-network operation T.
  • the present system 100 in the ongoing sub-network operation T also has the possibility of waking the "sleeping" nodes 22, 28 or the “sleeping" subscribers 32, 38 immediately and without a rest phase, according to an embodiment of the invention Further training a special wake-up telegram (see Fig. 4) is used.
  • This "global wake-up message” or this "global wake-up telegram” uses the same nominal level scheme, but is characterized by a special bit sequence which does not occur in normal communication operation and which is freely defined in the data field of any message, message or telegram can be.
  • the nodes 22, 28 and / or the nodes 32, 38 of the serially networked system 100 which are in the state with low current consumption, and the current data traffic on the CAN system bus 10 can be in a continuous, symmetrical data pattern investigate and interpret the recognition of this data pattern as a wake-up event.
  • a particularly suitable bit sequence is a symmetrical data pattern 62 or 64 which connects to at least any identifier 60 (address / header) and which can be recognized with simple means by simple hardware, even without the effort of a protocol controller.
  • Message identifier 60 (address / header) can be used; it is sufficient to recognize a symmetrical pattern (so-called "pattern"), which can be repeated correspondingly often in the data field of the message, the message or the telegram.
  • pattern a symmetrical pattern
  • the data patterns used can be of any type and are only characterized by the frequent repetition of the same bit phases. Both analog circuits known per se and digital circuits known per se can be used to filter such data patterns.
  • a certain period of time .DELTA.t> .DELTA.t k is used without communication on the data bus 10 in order to wake up these "sleeping" nodes 22, 28 or enable "sleeping" subscribers 32, 38 by means of a normal message, message or telegram;
  • the criterion for the addressing of all nodes 20, 22, 24, 26, 28 and all participants 30, 32, 34, 36, 38 on the data bus 10 is that there was previously a rest phase ⁇ t of the bus system that was greater than the adjustable critical period ⁇ t k is.
  • serial network system especially serial data bus system
  • chip unit in particular system chip unit 84 transceiver unit of chip unit 80

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Power Sources (AREA)

Abstract

L'invention concerne un procédé servant à faire passer un système en réseau série (100), notamment un système de bus de données série, d'un mode de fonctionnement sous-réseau (T), dans lequel au moins un noeud (22, 28) ou au moins un participant (32, 38) du système (100) se trouve dans un état de consommation de courant diminuée et n'est pas commuté ou activé par les niveaux de signaux (40, 42, 44) de l'échange de données sur le système (100), à un mode de fonctionnement de réseau complet (G), dans lequel tous les noeuds (20, 22, 24, 26, 28) ou tous les participants (30, 32, 34, 36, 38) du système (100) sont commutés ou activés par les niveaux de signaux (46, 48) de l'échange de données sur le système (100). L'invention concerne également un système correspondant (100). L'invention vise à améliorer un tel procédé et un tel système afin que les noeuds (22, 28) ou les participants (32, 38) du réseau, c'est-à-dire du bus de données (10), puissent être réveillés de manière simple mais efficace. A cet effet, le système (100) passe du mode de fonctionnement sous-réseau (T) au mode de fonctionnement réseau complet (G) lorsqu'un niveau de repos de signal (50) est constaté ou qu'aucune variation du niveau de signal n'est constatée pour une période (Δt) supérieure à une période critique (Δtk) de durée définissable ou réglable.
EP03757155A 2002-06-10 2003-06-05 Procede et systeme pour le passage d'un mode de fonctionnement sous-reseau a un mode de fonctionnement reseau complet Withdrawn EP1515873A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10225775A DE10225775A1 (de) 2002-06-10 2002-06-10 Verfahren und System zwischen Teilnetzbetrieb und Gesamtnetzbetrieb
DE10225776 2002-06-10
DE2002125776 DE10225776A1 (de) 2002-06-10 2002-06-10 Verfahren und System zwischen Teilnetzbetrieb und Gesamtnetzbetrieb
DE10225775 2002-06-10
PCT/IB2003/002116 WO2003104036A1 (fr) 2002-06-10 2003-06-05 Procede et systeme pour le passage d'un mode de fonctionnement sous-reseau a un mode de fonctionnement reseau complet

Publications (1)

Publication Number Publication Date
EP1515873A1 true EP1515873A1 (fr) 2005-03-23

Family

ID=29737586

Family Applications (2)

Application Number Title Priority Date Filing Date
EP03757156A Ceased EP1517813A1 (fr) 2002-06-10 2003-06-05 Procede et systeme pour le passage d'un mode de fonctionnement sous-reseau a un mode de fonctionnement reseau complet
EP03757155A Withdrawn EP1515873A1 (fr) 2002-06-10 2003-06-05 Procede et systeme pour le passage d'un mode de fonctionnement sous-reseau a un mode de fonctionnement reseau complet

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP03757156A Ceased EP1517813A1 (fr) 2002-06-10 2003-06-05 Procede et systeme pour le passage d'un mode de fonctionnement sous-reseau a un mode de fonctionnement reseau complet

Country Status (6)

Country Link
US (2) US20060075086A1 (fr)
EP (2) EP1517813A1 (fr)
JP (2) JP2005529516A (fr)
CN (2) CN100414915C (fr)
AU (2) AU2003232392A1 (fr)
WO (2) WO2003104036A1 (fr)

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JP5607219B2 (ja) * 2009-05-20 2014-10-15 ルネサスエレクトロニクス株式会社 自動車用通信システム
DE102009041435A1 (de) * 2009-09-16 2011-03-24 Robert Bosch Gmbh Verfahren und Vorrichtung zum Aufwecken von Teilnehmern eines Bussystems und entsprechender Teilnehmer
DE102009029541A1 (de) * 2009-09-17 2011-03-31 Robert Bosch Gmbh Verfahren zum Betreiben einer Anzahl Steuergeräte
EP2424174A1 (fr) 2010-08-27 2012-02-29 ELMOS Semiconductor AG Procédé de fonctionnement d'un système de bus
JP2013062722A (ja) * 2011-09-14 2013-04-04 Denso Corp 通信システム及び、当該通信システムを構成するスレーブノード
JP2013062723A (ja) * 2011-09-14 2013-04-04 Denso Corp 通信システム、並びに、当該通信システムを構成するマスタノード及びスレーブノード
JP5678849B2 (ja) * 2011-09-14 2015-03-04 株式会社デンソー 通信システム及びトランシーバ
GB201210596D0 (en) 2012-06-14 2012-08-01 Microsoft Corp Notification of communication events
CN103327089B (zh) * 2012-06-14 2017-04-26 微软技术许可有限责任公司 通信事件的通知
GB201210598D0 (en) 2012-06-14 2012-08-01 Microsoft Corp Notification of communication events
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JP5958445B2 (ja) 2013-10-23 2016-08-02 株式会社デンソー 車載ネットワークシステム、管理装置
JP6127944B2 (ja) * 2013-12-03 2017-05-17 株式会社デンソー 車載ネットワークシステム
JP7283412B2 (ja) 2020-02-14 2023-05-30 株式会社デンソー 通信システム
JP7371589B2 (ja) 2020-08-27 2023-10-31 株式会社デンソー 中継装置

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Also Published As

Publication number Publication date
EP1517813A1 (fr) 2005-03-30
JP2005529516A (ja) 2005-09-29
CN1659065A (zh) 2005-08-24
US20050204204A1 (en) 2005-09-15
CN1659066A (zh) 2005-08-24
CN100414915C (zh) 2008-08-27
WO2003104037A1 (fr) 2003-12-18
US8566466B2 (en) 2013-10-22
JP2005529517A (ja) 2005-09-29
AU2003232391A1 (en) 2003-12-22
US20060075086A1 (en) 2006-04-06
AU2003232392A1 (en) 2003-12-22
WO2003104036A1 (fr) 2003-12-18

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