WO2004030307A1 - Systeme de service de communication - Google Patents

Systeme de service de communication Download PDF

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Publication number
WO2004030307A1
WO2004030307A1 PCT/DE2003/002821 DE0302821W WO2004030307A1 WO 2004030307 A1 WO2004030307 A1 WO 2004030307A1 DE 0302821 W DE0302821 W DE 0302821W WO 2004030307 A1 WO2004030307 A1 WO 2004030307A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
communication
communication service
service device
ess
Prior art date
Application number
PCT/DE2003/002821
Other languages
German (de)
English (en)
Inventor
Klaus-Josef Kunte
Thomas Hanna
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2004030307A1 publication Critical patent/WO2004030307A1/fr

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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]
    • H04L12/2803—Home automation 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]
    • H04L12/2803—Home automation networks
    • H04L12/2816—Controlling appliance services of a home automation network by calling their functionalities
    • H04L12/282—Controlling appliance services of a home automation network by calling their functionalities based on user interaction within the home
    • 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]
    • H04L12/2803—Home automation networks
    • H04L12/283—Processing of data at an internetworking point of a home automation network
    • H04L12/2836—Protocol conversion between an external network and a home network
    • 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
    • H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/12—Protocol engines
    • 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]
    • H04L12/2803—Home automation networks
    • H04L2012/2847—Home automation networks characterised by the type of home appliance used
    • H04L2012/2849—Audio/video appliances
    • 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]
    • H04L12/2803—Home automation networks
    • H04L2012/2847—Home automation networks characterised by the type of home appliance used
    • H04L2012/285—Generic home appliances, e.g. refrigerators
    • 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
    • H04L67/34—Network arrangements or protocols for supporting network services or applications involving the movement of software or configuration parameters 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]

Definitions

  • the invention relates to an arrangement for providing communication services to support the control of system units.
  • controlled system units In addition to the control of industrial systems, controlled system units also allow control of home devices, for example controllable lighting systems, alarm systems, communication terminals, washing machines, video recorders, cameras, temperature monitoring systems, sprinkler systems, garage doors, etc.
  • home devices for example controllable lighting systems, alarm systems, communication terminals, washing machines, video recorders, cameras, temperature monitoring systems, sprinkler systems, garage doors, etc.
  • System units controlled via a network connection - networked devices - usually contain sensors and actuators and have computing units - usually e.g. in the form of so-called 'microcontrollers' - with limited computing power.
  • computing units usually e.g. in the form of so-called 'microcontrollers' - with limited computing power.
  • NIC Network Interface Connection
  • X.10 is a proprietary communication protocol from X10, which enables communication of up to 256 maximum addressable compatible devices via an in-house power network.
  • the communication environment 'Jini' developed by SUN - a recursive acronym for 'Jini is not Initials' or 'Java Intelligent Network Infrastructure' - defines a communication protocol or associated application interfaces for the communication of devices based on Java technology.
  • the communication environment 'UPnP' - 'Universal Plug and Play' - developed by Microsoft is an architecture for complex network connections e.g. for communication between devices and PCs from different manufacturers.
  • the object of the invention is to provide means for providing communication services to support control of such system units, the use of which avoids the above disadvantages of the prior art.
  • a communication service device arranged between a computing unit and a communication unit for processing protocol elements.
  • the computing unit is e.g. a microcontroller or any processor, also called CPU (Central Processing Unit).
  • the communication unit is designed, for example, in the form of a network card. Alternatively, the communication unit consists of a single component that controls a connection to any configured communication network.
  • Any communication protocol is used for communication with the communication network.
  • the communication service device communicates via the SIP communication standard ('Session Initiated Protocol') in accordance with the requirements of documents RFC 2543 and RFC 3261 (Request for Comment) of the IETF (Internet Engineering Task Force).
  • SIP communication standard Session Initiated Protocol'
  • the communication service facility mentioned can be integrated into the controlled system unit as well as into controlling systems.
  • a major advantage of the method according to the invention is that the processing unit relieves the processing unit of the processing of the protocol elements.
  • On a program that is executed on the computing unit only abstract control instructions and a handling of event messages need to be implemented instead of having to implement an entire routine for the composition or decomposition of protocol elements.
  • the control instructions or event messages are exchanged between the computing unit and the communication service device.
  • the SIP protocol is advantageously used at the application level to transmit control tasks. Using this standard, interoperability of a wide variety of controlled system units with communicating control units is guaranteed on the basis of an open standard.
  • a communications service device that is separate from the computing unit results in a minimization of the effort for conformity tests of the SIP protocol implementation.
  • a communication service facility is independent of. the software or the operating system on the computing unit. This is an easy one Migration guaranteed both on the part of the communication service facility and on the part of the computing unit.
  • the communication service device is advantageously integrated on an electronic component or on a silicon chip.
  • this silicon chip can also contain a permanent memory module, which is optionally located on another component.
  • a permanent memory module is, for example, an electrically erasable read-only memory, which is also known in the technical field as EEPROM (Electrically Erasable Programmable Read-Only Memory).
  • the computing unit and / or the communication unit is additionally integrated in the component of the communication service facility.
  • the system unit NWD is with a. Communication network connected to LAN.
  • the communication onsnetz LAN is designed according to a largely arbitrary communication standard, eg Ethernet, wireless LAN, or Bluetooth.
  • the system unit NWD is connected to the communication network LAN via a suitable network connection unit NIC.
  • the controlled system unit NWD has one or more input / output means explained below.
  • An input / output unit IO is connected to the system unit NWD, for example in the form of a display or in the form of a keyboard.
  • sensors / actuators ACT are provided, which also exchange information bidirectionally with the system unit NWD.
  • An audio input / output unit or a video input / output unit VID is provided for inputting or outputting audio or video data.
  • the input / output unit 10 or sensors / actuators ACT are connected to a computing unit MC of the system unit NWD. These components are usually connected to the computing unit MC via a control unit (not shown) which is also referred to in the technical field as a 'controller'.
  • Information from the audio input / output unit AUD or the video input / output unit VID is exchanged with an analog / digital converter ADDA.
  • the ADDA analog / digital converter converts analog and digital data in a bidirectional direction. After a conversion carried out by the analog / digital converter ADDA, the audio or video data are forwarded to the computing unit MC or also to the network connection unit NIC. In the opposite direction, data are routed from the computing unit MC to the analog / digital converter ADDA or from the network connection unit NIC to the analog / digital converter ADDA.
  • the computing unit MC exchanges data bidirectionally with a communication service device ESS - also called 'embedded SIP server'('session _ initiated protocol'). To exchange data with. the computing unit MC has the grain Communication services facility ESS via a first interface IF1.
  • the data exchanged with the computing unit MC include control commands, instructions, confirmation messages or status information. These data or commands control a composition of protocol elements according to the SIP standard or, in the direction from the communication service device ESS to the computing unit MC, transport the information contained therein after decomposing protocol elements.
  • the computing unit MC for example in the form of a control command, instructs the communication service device ESS • to compose a SIP protocol element on the basis of the parameters supplied.
  • the protocol elements generated in the communication service facility ESS are then transferred from the second interface IF2 to the network connection unit NIC.
  • Interface IF2 from the network connection unit NIC is analyzed by the communication service facility ESS and the data or status information received is transferred to the computing unit MC via the first interface IF1.
  • the ADDA analog / digital converter and its bidirectional communication with the computing unit MC or the network connection unit NIC are shown in broken lines in the drawing. This style symbolizes that a media communication, ie audio or video data, optionally, can be done that is in addition to an application of the SIP protocol '.
  • the media formats (codecs) used are known to the computing unit MC.
  • the communication service facility ESS can provide this media format information via the
  • the media data packets are exchanged transparent, ie without the participation of the communication service facility ESS.
  • Such a transparent connection can in particular - see drawing - take place without the involvement of the computing unit MC, ie the media data are exchanged directly via the network connection unit NIC.
  • the communication service device ESS can be used independently of an analog / digital converter ADDA for pure control applications.
  • the communication service device ESS relieves the computing unit MC of a composition or decomposition of SIP protocol elements.
  • the communication service facility ESS is e.g. designed as a separate chip.
  • the communication service facility ESS is therefore an independent unit with regard to hardware and software, which e.g. has its own operating system - in this case also called 'firmware' by experts.
  • the firmware of the communication service facility ESS can be updated in the course of an update.
  • the current firmware is transmitted to the communication service device ESS via an information transmitter, which is located in the communication network LAN and is not shown, via the network connection unit NIC.
  • the current firmware is stored in the communication service facility ESS, the previous firmware being overwritten.
  • the communication service device ESS or an optional media data processing unit ME (shown in dashed lines) ME is connected to the computing unit MC via a computing unit API APIMC of the computing unit MC. Communication with the computing unit API APIMC of the communication service facility ESS takes place via a service API APIESS, through which an exchange of control instructions takes place.
  • the communication service device ESS contains as further software modules a service module SM communicating with the service API APIESS and a transport protocol module TPS communicating with the service module SM.
  • the transport protocol module TPS exchanges data on a transport level with the network connection unit NIC.
  • the communication between the service API APIESS and the service module SM optionally takes place either via a service intermediary module UA or via a proxy module PRX.
  • the service agent module UA and the proxy module PRX take over tasks of an assignment unit.
  • the service agent module UA - often referred to in the technical field as the 'user agent' - is a service provider that maps instructions via the APIESS service API to available services and vice versa. If communication of the APIESS service API takes place alternatively via the substitute module PRX - also referred to in the technical field as 'proxy' - then this substitute module PRX extracts data contained in the instructions in data telegrams.
  • the proxy module PRX also takes on the task of forwarding instructions which are not intended for the communication service device ESS to the output of the communication service device ESS, ie via the transport protocol module TPS to the network connection unit NIC. These functions of a module, which is also referred to as a 'router', are carried out when the proxy module PRX determines during the analysis of the instructions that the communication service facility ESS is not responsible for processing these instructions.
  • the service agent module UA and the proxy module PRX communicate bidirectionally with a protocol module PRM.
  • a protocol module PRM In the protocol module PRM - usually also called 'SIP engine' - a composition or decomposition of instructions and SIP protocol elements is carried out.
  • the protocol module PRM comprises a SIP protocol stack module SPM, a location determination module LSM and an authentication module AUM.
  • the location determination module LSM - usually also referred to as a 'location service module' - is used by the proxy module PRX to obtain information about a communication end point.
  • the communication end point of the communication service device ESS is usually a control device (not shown) via which the controlled system unit NWD is controlled.
  • the location determination odu1 LSM determines the location, for example, on the basis of information obtained via the communication network from a domain name service (not shown), also called 'domain name server', DNS.
  • the authentication module AUM contains mechanisms to ensure the authenticity of the control device, for example using known cryptographic methods such as PGP ('Pretty Good Privacy') or RADIUS ('Remote Authentication Dial-In User').
  • the authenticity and an authorization for requested control tasks are checked for incoming SIP protocol elements before these are transferred to the computing unit MC in the form of control instructions.
  • the authentication module AUM optionally decrypts cryptographically encrypted contents of SIP protocol elements.
  • the 'contents' that is to say datagrams transported in the SIP protocol elements, are organized, for example, in the form of text messages.
  • the datagrams can be structured according to XML ('Extended Markup Language').
  • the PRM protocol module communicates bidirectionally with a transport protocol module TPS, via which data is exchanged with the network connection unit NIC.
  • the transport protocol module TPS converts the SIP protocol elements into data packets with a corresponding transport protocol.
  • SIP protocol elements are extracted from the data packets encoded in a transport protocol.
  • datagrams are converted into machine-readable instructions and vice versa.
  • the machine-readable instructions can be called up via the APIESS service API or are transferred there to the APIMC computing unit API — information extracted from the datagrams is supplemented there, for example as application level commands, for example in the form of the following, with exemplary control tasks - Pass commands: 'Control', ie control commands in the form 'activate the sprinkler system';
  • the communications service facility ESS is associated with a media data processing unit ME for processing audio or video signals.
  • the media data processing unit ME exchanges instructions via a media data API APIME in an analogous manner to the communication service device ESS with the computing unit API APIMC.
  • the received data is processed by the media data API APIME and passed on to the media data processing service module MDS.
  • the media data processing service module MDS communicates with a media data transfer module MSA via which a transfer to the network connection unit NIC takes place in a manner analogous to the transport protocol module TPS of the communication service device ESS.

Abstract

La présente invention concerne un système de service de communication (ESS) conçu pour supporter une commande d'une unité de système (NWD) et comprenant une interface d'application (APIESS) pour échanger des informations de signalisation avec une unité de calcul (MC), une interface de communication (IF2) conçue pour échanger des éléments de protocole avec une unité de communication (NIC) et une unité de conversion permettant une conversion bidirectionnelle d'informations de signalisation et d'éléments de protocole sur la base du standard SIP.
PCT/DE2003/002821 2002-09-25 2003-08-22 Systeme de service de communication WO2004030307A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10244712.8 2002-09-25
DE2002144712 DE10244712A1 (de) 2002-09-25 2002-09-25 Kommunikationsdiensteeinrichtung

Publications (1)

Publication Number Publication Date
WO2004030307A1 true WO2004030307A1 (fr) 2004-04-08

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PCT/DE2003/002821 WO2004030307A1 (fr) 2002-09-25 2003-08-22 Systeme de service de communication

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DE (1) DE10244712A1 (fr)
WO (1) WO2004030307A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001031852A1 (fr) * 1999-10-22 2001-05-03 Roke Manor Research Limited Dispositif de commande et de surveillance entierement integre avec acces au web
US20020103898A1 (en) * 2001-01-31 2002-08-01 Moyer Stanley L. System and method for using session initiation protocol (SIP) to communicate with networked appliances

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001031852A1 (fr) * 1999-10-22 2001-05-03 Roke Manor Research Limited Dispositif de commande et de surveillance entierement integre avec acces au web
US20020103898A1 (en) * 2001-01-31 2002-08-01 Moyer Stanley L. System and method for using session initiation protocol (SIP) to communicate with networked appliances

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JOHANN REITTER ET AL: "Controlling and checking devices via the Session Initiation Protocol –a service for the IM subsystem", SIEMENS TECHNIK REPORT, vol. 4, no. 12, July 2001 (2001-07-01), pages 196, XP007002630 *
MOYER S ET AL: "A PROTOCOL FOR WIDE-AREA SECURE NETWORKED APPLIANCE COMMUNICATION", IEEE COMMUNICATIONS MAGAZINE, IEEE SERVICE CENTER, PISCATAWAY, US, vol. 39, no. 10, October 2001 (2001-10-01), pages 52 - 59, XP001121648, ISSN: 0163-6804 *

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Publication number Publication date
DE10244712A1 (de) 2004-04-15

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