DE102007053625B3 - Data exchanging method for e.g. single wire bus system, involves issuing release of execution of potential of action by master before notification of request by slave, when defined conditions are fulfilled - Google Patents
Data exchanging method for e.g. single wire bus system, involves issuing release of execution of potential of action by master before notification of request by slave, when defined conditions are fulfilled Download PDFInfo
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- DE102007053625B3 DE102007053625B3 DE200710053625 DE102007053625A DE102007053625B3 DE 102007053625 B3 DE102007053625 B3 DE 102007053625B3 DE 200710053625 DE200710053625 DE 200710053625 DE 102007053625 A DE102007053625 A DE 102007053625A DE 102007053625 B3 DE102007053625 B3 DE 102007053625B3
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- slave
- master
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- execution
- request
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Classifications
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- 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
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Datenaustausch in einem Bussystem mit einem Ein-Draht-Bus, an den ein Master und mindestens ein Slave angeschlossen sind.The The invention relates to a method for data exchange in a bus system with a one-wire bus to which a master and at least one slave are connected.
Derartige Bussysteme werden beispielsweise zur Vernetzung von miteinander korrespondierenden Teilnehmern eines Gesamtsystems verwendet. Die Kommunikation zwischen den Teilnehmern erfolgt dabei über eine Steuereinheit (Master), an den jeder Teilnehmer eine von extern erhaltene Anforderung (beispielsweise Aktivierung einer durch den Teilnehmer realisierbaren Funktion) meldet, um dann in einem nächsten Schritt der Datenkommunikation vom Master eine Freigabe zur Ausführung der Aktion zu erhalten. Derartige Master-Slave-Bussysteme sind weit verbreitet und sollen, je nach Anwendungsfall, kostenoptimiert sein. Ein Beispiel für eine derartige Busarchitektur ist die Vernetzung mehrerer Geräte, Schalter, Sensoren oder dergleichen in einem Fahrzeug. So können beispielsweise mehrere Bedieneinheiten und Fahrzeugkomponenten miteinander über eine Master-Slave-Busausbildung vernetzt sein.such Bus systems, for example, for networking of each other corresponding participants of an overall system used. The Communication between the participants takes place via a Control unit (master), to which each participant one from externally request received (for example activation of a by the Participants realizable function) reports, then in a next step the data communication from the master a release for the execution of To receive action. Such master-slave bus systems are widely used and should, depending on the application, be cost-optimized. An example for one such bus architecture is the networking of multiple devices, switches, Sensors or the like in a vehicle. So, for example several control units and vehicle components with each other via a Be networked master-slave bus training.
Beispiele
für derartige
Bussysteme sind z. B. aus
Wird bei einem derartigen System eine vernetzte Einheit, beispielsweise heizbare Heckscheibe eines Fahrzeuges, aktiviert, so ist es auch Bedienkomfortgründen wünschenswert, wenn eine optische Rückmeldung, dass die entsprechende Taste der zur beheizbaren Heckscheibe gehörenden Bedieneinheit gedrückt ist, erfolgt. Die Aktivierung der Heckscheibe ist aber abhängig von der Auslastung des Bordnetzes. Ist das Bordnetz bereits relativ stark belastet, so darf die Funktion "Beheizbare Heckscheibe Ein" nicht ausgeführt werden. Eine beispielsweise von einem Bediener gewünschte Aktion eines Slave muss also vom Master freigegeben werden, der im Falle der Freigabe diese Information an den Slave zurücksendet, woraufhin dieser die Aktion ausführen kann und auch eine optische Rückmeldung an den Bediener gibt. Dies erfordert Zeit, was den Fahrzeuginsassen oder allgemein die das System bedienende Person irritieren kann.Becomes in such a system a networked unit, for example heated rear window of a vehicle, activated, so it is Ease of use reasons desirable, if an optical feedback, that the corresponding button of the control unit belonging to the heated rear window is pressed, he follows. Activation of the rear window is dependent on the utilization of the electrical system. Is the electrical system already relative heavily loaded, the function "Heated rear window on" must not be executed. An example of an operator desired action of a slave must So be released by the master who in case of release this Return information to the slave, then he will do the action can and also a visual feedback to the operator. This requires time, what the vehicle occupants or In general, the person operating the system can be irritating.
Aufgabe der Erfindung ist es, die Rückmeldung eines Slave, dass eine extern erhaltene Anforderung ausgeführt werden kann, schneller erfolgt.task The invention is the feedback a slave that an externally received request is executed can be done faster.
Zur Lösung dieser Aufgabe wird mit der Erfindung ein Verfahren zum Datenaustausch in einem Bussystem vorgeschlagen, wie es im Anspruch angegeben ist.to solution This object is achieved with the invention, a method for data exchange proposed in a bus system, as indicated in the claim.
Die Freigabe der Ausführung der Aktion erfolgt nach der Erfindung seitens des Masters sozusagen im Voraus, so dass in dem Augenblick, in dem von extern die Anforderung, eine Aktion zu entfalten, erhalten wird, der Slave sogleich rückmelden kann, dass die Aktion ausgeführt wird. Somit erfolgen sowohl die Ausführung der Aktion als auch die Meldung, dass eine Aktion ausgeführt wird, wesentlich schneller.The Release of the execution The action takes place after the invention on the part of the master so to speak in advance, so that the moment in which the request from outside, to unfold an action is received, the slave immediately confirm can that the action is running becomes. Thus, both the execution of the action as well as the Message that executed an action becomes, much faster.
Mit der Erfindung ist es möglich, Verzögerungszeiten bei der Kommunikation zwischen Bediengeräten (Slave) und einem Master in einem Master-Slave-Bussystem zu minimieren, indem eine direkte Reaktion auf die Bedienung eines Slave erfolgen kann, da das Wissen über die nächsten möglichen Zustände des Bediengeräts (Slave) in diesem bereits vor der Bedienung des Bediengeräts vorliegen. Mit anderen Worten liegt also die Information, auf welche Tasten wie reagiert werden darf, im Bediengerät, also im Slave, vor, bevor der Bediener die Bedienfunktion ausführen will. Wenn dann die Funktion seitens des Bedieners ausgewählt und durchgeführt wird, wird in dem Bediengerät die Information, wie auf eine andere vom Bediengerät realisierbare Bedienfunktion reagiert wird, wenn sie denn angefordert wird, abgelegt.With the invention it is possible delay times during communication between operator panels (slave) and a master in a master-slave bus system minimize by giving a direct response to the operation of a Slave can be done because the knowledge about the next possible states of the HMI (Slave) in this already before the operation of the HMI device. In other words, the information lies on which keys how it is allowed to react, in the operating unit, ie in the slave, before, before the operator wants to perform the control function. If then the function selected by the operator and performed is in the HMI device the information, as on another from the operating unit realizable operating function responds, if so requested, filed.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels und unter Bezugnahme auf die Zeichnung näher erläutert. Im Einzelnen zeigen dabei:The Invention will be described below with reference to an embodiment and with reference to the drawing closer explained. In detail, they show:
In
Das
untere Diagramm in
Die
eigentliche Besonderheit des Bussystems
Der
Master
Um
dies abzukürzen,
schlägt
die Erfindung vor, dass der Master in den betreffenden Slave (hier Panel
- 33
- Panelpanel
- 77
- Panelpanel
- 1010
- Bussystembus system
- 1212
- Ein-Draht-BusOne-wire bus
- 1414
- Mastermaster
- 1616
- Slave, Masterslave, master
- 1818
- Datenrahmendata frames
- 2020
- Headerabschnittheader section
- 2222
- DatenabschnittRelated Info
- 2424
- ChecksummenabschnittChecksum section
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710053625 DE102007053625B3 (en) | 2007-11-08 | 2007-11-08 | Data exchanging method for e.g. single wire bus system, involves issuing release of execution of potential of action by master before notification of request by slave, when defined conditions are fulfilled |
Applications Claiming Priority (1)
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DE200710053625 DE102007053625B3 (en) | 2007-11-08 | 2007-11-08 | Data exchanging method for e.g. single wire bus system, involves issuing release of execution of potential of action by master before notification of request by slave, when defined conditions are fulfilled |
Publications (1)
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DE102007053625B3 true DE102007053625B3 (en) | 2009-08-06 |
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DE200710053625 Active DE102007053625B3 (en) | 2007-11-08 | 2007-11-08 | Data exchanging method for e.g. single wire bus system, involves issuing release of execution of potential of action by master before notification of request by slave, when defined conditions are fulfilled |
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DE (1) | DE102007053625B3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110657557A (en) * | 2019-09-11 | 2020-01-07 | 珠海格力电器股份有限公司 | Method and device for acquiring information of electric appliance, storage medium and processor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4503513A (en) * | 1980-08-04 | 1985-03-05 | General Motors Corporation | Radio receiver system including a control unit and a remote unit |
US20070186021A1 (en) * | 2006-02-03 | 2007-08-09 | Standard Microsystems Corporation | Method for a slave device to convey an interrupt and interrupt source information to a master device |
-
2007
- 2007-11-08 DE DE200710053625 patent/DE102007053625B3/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4503513A (en) * | 1980-08-04 | 1985-03-05 | General Motors Corporation | Radio receiver system including a control unit and a remote unit |
US20070186021A1 (en) * | 2006-02-03 | 2007-08-09 | Standard Microsystems Corporation | Method for a slave device to convey an interrupt and interrupt source information to a master device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110657557A (en) * | 2019-09-11 | 2020-01-07 | 珠海格力电器股份有限公司 | Method and device for acquiring information of electric appliance, storage medium and processor |
CN110657557B (en) * | 2019-09-11 | 2023-10-03 | 珠海格力电器股份有限公司 | Method and device for acquiring information of electric appliance, storage medium and processor |
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8364 | No opposition during term of opposition | ||
R081 | Change of applicant/patentee |
Owner name: BEHR-HELLA THERMOCONTROL GMBH, DE Free format text: FORMER OWNER: BEHR-HELLA THERMOCONTROL GMBH, 70469 STUTTGART, DE |