EP1131717A1 - Systeme et procede pour la telemaintenance ou le telediagnostic d'un systeme d'automatisation au moyen du courrier electronique - Google Patents

Systeme et procede pour la telemaintenance ou le telediagnostic d'un systeme d'automatisation au moyen du courrier electronique

Info

Publication number
EP1131717A1
EP1131717A1 EP99970752A EP99970752A EP1131717A1 EP 1131717 A1 EP1131717 A1 EP 1131717A1 EP 99970752 A EP99970752 A EP 99970752A EP 99970752 A EP99970752 A EP 99970752A EP 1131717 A1 EP1131717 A1 EP 1131717A1
Authority
EP
European Patent Office
Prior art keywords
command
mail
transmitting
automation system
receiving device
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
EP99970752A
Other languages
German (de)
English (en)
Inventor
Werner Blumenstock
Reiner Plaum
Thomas Talanis
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.)
Siemens AG
Original Assignee
Siemens AG
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 AG filed Critical Siemens AG
Publication of EP1131717A1 publication Critical patent/EP1131717A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
    • H04L63/029—Firewall traversal, e.g. tunnelling or, creating pinholes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/2294—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing by remote test
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/34—Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment
    • G06F11/3466—Performance evaluation by tracing or monitoring
    • G06F11/3495—Performance evaluation by tracing or monitoring for systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2201/00—Indexing scheme relating to error detection, to error correction, and to monitoring
    • G06F2201/875—Monitoring of systems including the internet

Definitions

  • the invention relates to a system and a method for remote maintenance and / or diagnosis of an automation system provided with an electronic protective wall via a data transmission system.
  • Remote maintenance and / or diagnosis a special data connection between the automation system and a remote subscriber who wants to carry out remote maintenance and / or diagnosis is required.
  • Remote maintenance and / or diagnosis is associated with a high outlay due to the data connection to be provided specifically.
  • the internal data network is usually secured from the outside by a protective wall, a so-called firewall, i.e. the data world within the company's internal communication network cannot be accessed from outside the internal communication network. If data within the communication network is to be accessed from outside the protective wall, it is usually necessary to install an independent computer that is located outside the protective wall.
  • the invention has for its object to provide a system and a method for remote maintenance and / or diagnosis of an automation system, which enables remote maintenance or remote diagnosis in a simple manner even with an electronic protective wall around the automation system.
  • This object is achieved by a system for remote maintenance and / or diagnosis of an automation system provided with an electronic protective wall via a data transmission system with a first transmission / reception device arranged at the location of a remote subscriber for sending an e-mail to the automation system, the first transmission - / receiving device has a command encoder for packaging at least one command in the email to be sent, and with a second sending / receiving device arranged at the location of the automation system for receiving the email sent by the remote subscriber, the second sending / Receiving device a command decoder for automatic detection of the command in the e-mail and for transmitting the command to the application for which the command is intended.
  • This object is achieved by a method for remote maintenance and / or diagnosis of an automation system provided with an electronic protective wall via a data transmission system, in which an email is sent from a remote subscriber to the automation system, in which at least one for an application specific command of the automation system is packaged, and in which the e-mail sent by the remote subscriber is received at the location of the automation system and the command contained in the e-mail is automatically recognized and sent to the application for which the command is intended for execution is handed over.
  • the invention is based on the knowledge that access to devices of an automation system even behind an electronic protective wall is made possible by packaging the desired control commands in a so-called e-mail.
  • a desired command is packaged in the e-mail to be sent at the location of a remote subscriber who wants to carry out remote maintenance or remote diagnosis of an automation system and is addressed and sent to the automation system.
  • the e-mail is received by the addressee within the automation system, decoded, ie the control command is extracted from the received e-mail and forwarded to the application for which the control command is intended.
  • commands can be initiated by the remote subscriber, and data for the automation system can also be transmitted, for example, without the need for a complex special data connection between the remote subscriber and the automation system.
  • the protective wall surrounding the automation system also does not represent an obstacle to electronic mail.
  • a reply to the remote subscriber can take place analogously to the transmission of the command in that the second transmitting / receiving device for accepting information determined by the application as a result of the command and for sending the information as an e-mail to the first transmitting / Receiving device of the remote subscriber is provided.
  • the remote participant can not only control the automation system, but also query status information of the automation system, for example, and thus even operate and monitor the automation system.
  • FIG. 1 shows a block diagram of an exemplary embodiment of a system for remote maintenance and diagnosis of an automation system
  • FIG. 2a shows an embodiment for the basic structure of an e-mail for remote maintenance
  • FIG. 3 shows a schematic representation of the process flow for remote maintenance and remote diagnosis.
  • FIG. 1 shows an exemplary embodiment of a system for remote maintenance and diagnosis of an automation system via a data transmission system 18.
  • the data transmission system 18 is connected via an Internet 4 to remote participants 1, 19, 20 and to the automation system 2.
  • a computer 23 is provided, which has a first transmitting / receiving device.
  • the computer 23 is coupled to a monitor 7 and to a keyboard 25.
  • the transceiver 24 has a command encoder 3, which is used to package a command in an email 16 to be sent.
  • an encryption / decryption device 22 is provided in the first transmitting / receiving device 24, with the aid of which the command packaged in the email 16 can be encrypted.
  • a second transmitting / receiving device 5 is provided, which for
  • Receiving or sending electronic messages 16, 17 is provided.
  • the second transmitting / receiving device 5 has a decoder 11 for decoding the command contained in a received e-mail 16.
  • the command 8 extracted in this way is forwarded via a decryption device 21 to an application 6 for which the command 8 is intended.
  • An electronic protective wall 12 is provided at the location of the transmission system 2, which, although it prevents direct access to the automation system 2 from outside, is permeable for the reception or the sending of e-mails 16, 17.
  • the first transmitting / receiving device 3 for example a correspondingly adapted one, is located at the location of the remote subscriber 1 with the aid of the computer 23, as well as with the keyboard 25 coupled with the computer and the screen 7 coupled with the computer Standard mail tool such as Microsoft Exchange etc. called.
  • the address of the automation system 2 is specified as the address, while in the subject field, for example, the application 6 is specified for which a command to be executed is intended.
  • the command itself is entered in the text field of the e-mail and, if desired, encrypted using the encryption device 22 using the encryption ensures that only the automation system which is in possession of the associated key can read the corresponding data.
  • the e-mail 16 compiled in this way is then sent via the Data transmission system 18, in particular sent to the automation system 2 via the Internet 4.
  • the second transmitting / receiving device 5 of the automation system 2 receives the e-mail 16, the decoder 11 being used for decoding and, if necessary, the decoding device 21 for decrypting the transmitting command.
  • the command now present is transferred to the application 6 specified, for example, in the subject of the e-mail and executed there. If the e-mail 16 transmitted by the remote subscriber 1 to the automation system 2 contains, for example, a command 8 which leads to a result generation in the application 6, the result 9 determined by the application 6 is reversed with the aid of the second transmission / Receiving device optionally with encryption of the result information data 9 with
  • the email 17, which contains the result information data 9 of the application 6, can be received, decoded and decrypted by the remote subscriber 1.
  • the system shown in FIG. 1 thus makes it possible to access devices within a protective wall 12 using what is known as email tunneling. Access is possible from any Internet connection, so that remote maintenance and / or remote diagnosis of the automation system 2 can take place, for example, in the event of a fault in the automation system, regardless of the location of a specialist.
  • FIG. 2a shows an embodiment of the principle
  • the email 16 has an identification field 30 and a text field 29.
  • the identification field 30 contains an address field 26, a sender field 27, a time field 31 and a subject field 28.
  • the address field 26 is used to indicate the recipient.
  • the sender field 27 is used to indicate the sender, ie the removed one Participant who sends the email 16.
  • the subject field 28 contains, for example, a keyword and / or an indication with which the special application 6 (see FIG. 1) of the automation system is identified.
  • the text field 29 contains the command or commands that are to be transferred to the application 6.
  • the structure of the e-mail 16 shown in FIG. 2a corresponds to the structure known from known e-mail tools such as Microsoft Exchange.
  • This known structure is adapted for the special tasks for remote diagnosis or remote maintenance in such a way that in the address field 27 the receiver, i.e. the automation system 2 and in the subject field 28 the special application 6 for which the command 8 is intended is specified.
  • instruction 8 can be encrypted in text field 29.
  • the remote subscriber 1 can use a special remote maintenance mail tool that automatically sends the commands 8 to be sent using a corresponding command encoder (see FIG. 1) packed the email 16 to be sent.
  • Figure 2b shows the basic structure of a result message 17.
  • the basic structure of the result message 17 corresponds to the structure of the command message 16 (see Figure 2a).
  • the result message 17 in turn has an identification field 30 and a text field 29.
  • the address field 26 the addressee "removed subscriber 1" is specified in the result message 17, while the sender field 27 contains the sender identification, in this case the sender "automation system 2".
  • Result message ie status information for port 1, port 2, port 3 ... specified.
  • the result message shown in FIG. 2b is generated automatically in the automation system 2 (cf. FIG. 1) in response to the email 16 transmitted by the remote subscriber 1 and with the help of the transmitting / receiving device of the automation system via the data transmission system, in particular via the Internet to the remote Participant sent. This makes it possible for the remote subscriber to carry out remote maintenance or remote diagnosis from any location that is connected to the data transmission system.
  • the information contained in text field 29 can in turn be encrypted automatically.
  • FIG. 3 shows a schematic representation of the process flow for remote maintenance and remote diagnosis.
  • a remote subscriber 1 generates an e-mail 16 using a so-called command encoder 11, which contains a command 8.
  • the email 16 including the corresponding command 8 is sent through the protective wall 12 of an automation system, for example to the server of the automation system.
  • the so-called command decoder 11 automatically interprets the incoming email 16 and the command 8 extracted in this way is forwarded to the respective application 6 for execution.
  • the so-called result encoder 13 takes over the result determined by the application 6 in a fourth process step 34 and packages it in an e-mail 17 in a fifth process step 35.
  • the e-mail 17 is sent back to the remote subscriber 1 in a sixth process step 36 .
  • the result 9 is extracted from the e-mail 17 using the so-called result decoder 14 and displayed to the remote subscriber 1.
  • the invention thus relates to a system for remote maintenance and / or diagnosis of an automation system 2 provided with an electronic protective wall 12.
  • a system for remote maintenance and / or diagnosis of an automation system 2 provided with an electronic protective wall 12.
  • an e-mail 16 to the automation system 2 via a data transmission system 18 with a first transmitting / receiving device 1 arranged at the location of a remote subscriber 1.
  • a command 8 to be executed at the location of the automation system 2 is packed into the e-mail 16 to be sent by means of a command encoder 3.
  • a second transmitting / receiving device 5 is provided for receiving the email 16 sent by the remote subscriber 1, the second transmitting / receiving device 5 having a command decoder 11 for automatically recognizing the command in the email 16 and for transferring the command 8 to the application 6 for which the command 8 is intended.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Computing Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

L'invention concerne un système pour la télémaintenance ou le télédiagnostic d'un système d'automatisation (2) comportant un système de protection électronique (12). Ainsi, pour accéder au système d'automatisation par l'intermédiaire du réseau Internet, par exemple, à partir de tout ordinateur relié à ce réseau, on envoie, par l'intermédiaire d'un système de transmission de données (18), un message électronique (16) au système d'automatisation (2) au moyen d'un premier dispositif d'émission/réception (1) situé à l'emplacement d'un abonné éloigné (1). A cet effet, on place, au moyen d'un encodeur de commandes (3), une commande (8) à exécuter à l'emplacement du système d'automatisation (2) dans le message électronique à envoyer (16). Au niveau du système d'automatisation (2), un deuxième dispositif d'émission/réception (5) reçoit le message électronique (16) envoyé par l'abonné éloigné (1). Ce deuxième dispositif (5) comporte un décodeur de commandes (11) reconnaissant automatiquement la commande (8) dans le message électronique (16) et transmettant cette dernière à l'application (6) à laquelle la commande (8) est destinée.
EP99970752A 1998-10-21 1999-10-08 Systeme et procede pour la telemaintenance ou le telediagnostic d'un systeme d'automatisation au moyen du courrier electronique Ceased EP1131717A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19848618A DE19848618A1 (de) 1998-10-21 1998-10-21 System und Verfahren zur Fernwartung und/oder Ferndiagnose eines Automatisierungssystems mittels E-Mail
DE19848618 1998-10-21
PCT/DE1999/003250 WO2000023894A1 (fr) 1998-10-21 1999-10-08 Systeme et procede pour la telemaintenance ou le telediagnostic d'un systeme d'automatisation au moyen du courrier electronique

Publications (1)

Publication Number Publication Date
EP1131717A1 true EP1131717A1 (fr) 2001-09-12

Family

ID=7885232

Family Applications (1)

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EP99970752A Ceased EP1131717A1 (fr) 1998-10-21 1999-10-08 Systeme et procede pour la telemaintenance ou le telediagnostic d'un systeme d'automatisation au moyen du courrier electronique

Country Status (4)

Country Link
US (1) US20020006790A1 (fr)
EP (1) EP1131717A1 (fr)
DE (1) DE19848618A1 (fr)
WO (1) WO2000023894A1 (fr)

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Also Published As

Publication number Publication date
WO2000023894A1 (fr) 2000-04-27
US20020006790A1 (en) 2002-01-17
DE19848618A1 (de) 2000-06-29

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