Siemens Aktiengesellschaft

Siemens Schweiz Ag

Norbert Vicari

Michael Bahr

Christoph Niedermeier

Frank Lahner

Jan Husak

Bernhard Isler

Matthias Kuhnert

A method and a network system for communicating confidential measured data between a plurality of decentralized, measured data-generating producers and a consumer in an automation network is provided. The following is carried out on the part of the producers: measuring or providing measured data from a plurality of sensors and classifying the measured data into security levels; checking a reliability of consumer-generated processing instructions depending on the respective classified security level; and in the case of a positive check, processing the measured data on the basis of the processing instructions, proven to be reliable, to generate an analysis result data set; and transmitting the analysis result data set to the consumer.

Secure transmission of sensitive measurement data in an automation network

The Specific service instances are requested by a client via a client application. The request is received by a Domain Name System (DNS). The request is resolved by the DNS by determining from information recorded in a DNS system memory and conveyed in the request, a first type Tof service and a first list Lof service instances associated with the first type T. The DNS then searches for a linked structure in a TXT resource record for the first type T. The linked structure identifies another list Lof service instances associated with a subtype Tof service. Then iteratively, for i=2, . . . , N+1, N being a number of the subtypes of service associated with the first type Tof service, searching a TXT resource record for a linked structure identifying a corresponding subtype Ti of service and identifying a list Li+1 of service instances associated with the subtype Ti+1.

Method and system for domain name system based discovery of devices and objects

A method for transmitting a beacon for a star network in manufacturing automation, for use in a communications protocol, such as IEEE Standard 802.15.4e, for manufacturing automation, using at least one gateway and at least one sensor node, wherein the beacon comprises a field including information about a number of base time slots in a superframe.

Method for transmitting a beacon in a star network (master-slave ad hoc network) and a sensor node in a star network

A method for data transmission in a local area network, wherein data is transmitted on a medium access control layer within successive time frames between a plurality of first nodes comprising client nodes and a second node within reach of the first nodes, and a coordinator node for the first nodes where a time frame comprises a plurality of time slots. Each time slot is assigned to a first node that is a slot owner node being exclusively allowed to start transmitting data at a time within a first interval at the beginning of the time slot. At least one first nodes of the plurality of first nodes is allowed to use the time slot based on a contention based access to transmit the data in a second interval succeeding the first interval where the slot owner node has not started transmitting data at a time within the first interval.

Method for data transmission in a local area network

Route discovery of a route from a source node of an IEEE 802 connection to a destination node of an IEEE 802 connection, including a mesh network path with a source node of the mesh path and a destination node of the mesh path, is initiated by an extended route request message generated by the destination node. The extended route request message includes a flag that indicates whether the source node of the IEEE 802 connection is located inside or outside the mesh network, and either one source address of the source node, if the node is inside the mesh network, or two source addresses covering (a) the source address of the source node of the mesh path and (b) the source address of the source node of the IEEE 802 connection, if the node is outside the mesh network.

Method for generating extended route message, method for generating an extended route reply message, extended route request message, extended route reply message and first and second nodes

A method for data transmission in a local are network, wherein data is transmitted on the Media Access Control (MAC) layer within successive time frames between a plurality of first nodes comprising client nodes to a second node comprising a coordinator node for the plurality of first nodes. A synchronizing slot for sending a synchronizing message from the second node to the first nodes includes acknowledgements for time slots used for data transmissions in previous time frames from the first nodes to the second node. The acknowledgements indicate whether a data transmission in the previous time frame was successful. Based on these acknowledgements, retransmission time slots included in the current time frame are used for retransmitting data that have not been transmitted successfully in a time slot of the previous time frame.

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Munich, Germany

Norbert Vicari